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authorkan <kan@FreeBSD.org>2004-08-12 16:41:42 +0000
committerkan <kan@FreeBSD.org>2004-08-12 16:41:42 +0000
commitd42790ccc00a70f00d10a3b8f17967a5b396bd4d (patch)
tree05895ca3fdba11097afd624bf6f64962995c416e /contrib/gcc/doc
parentd42b9316c71d1b89b1b05d36be366eadf7bd8cdf (diff)
downloadFreeBSD-src-d42790ccc00a70f00d10a3b8f17967a5b396bd4d.zip
FreeBSD-src-d42790ccc00a70f00d10a3b8f17967a5b396bd4d.tar.gz
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-@c Copyright (C) 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
-@c This is part of the GCC manual.
-@c For copying conditions, see the file install.texi.
-
-@ifnothtml
-@comment node-name, next, previous, up
-@node Old, GNU Free Documentation License, Specific, Top
-@end ifnothtml
-@html
-<h1 align="center">Old installation documentation</h1>
-@end html
-@ifnothtml
-@chapter Old installation documentation
-@end ifnothtml
-
-Note most of this information is out of date and superseded by the
-previous chapters of this manual. It is provided for historical
-reference only, because of a lack of volunteers to merge it into the
-main manual.
-
-@ifnothtml
-@menu
-* Configurations:: Configurations Supported by GNU CC.
-* Cross-Compiler:: Building and installing a cross-compiler.
-* VMS Install:: See below for installation on VMS.
-@end menu
-@end ifnothtml
-
-Here is the procedure for installing GNU CC on a GNU or Unix system.
-See @ref{VMS Install}, for VMS systems.
-
-@enumerate
-@item
-If you have chosen a configuration for GNU CC which requires other GNU
-tools (such as GAS or the GNU linker) instead of the standard system
-tools, install the required tools in the build directory under the names
-@file{as}, @file{ld} or whatever is appropriate. This will enable the
-compiler to find the proper tools for compilation of the program
-@file{enquire}.
-
-Alternatively, you can do subsequent compilation using a value of the
-@code{PATH} environment variable such that the necessary GNU tools come
-before the standard system tools.
-
-@item
-Specify the host, build and target machine configurations. You do this
-when you run the @file{configure} script.
-
-The @dfn{build} machine is the system which you are using, the
-@dfn{host} machine is the system where you want to run the resulting
-compiler (normally the build machine), and the @dfn{target} machine is
-the system for which you want the compiler to generate code.
-
-If you are building a compiler to produce code for the machine it runs
-on (a native compiler), you normally do not need to specify any operands
-to @file{configure}; it will try to guess the type of machine you are on
-and use that as the build, host and target machines. So you don't need
-to specify a configuration when building a native compiler unless
-@file{configure} cannot figure out what your configuration is or guesses
-wrong.
-
-In those cases, specify the build machine's @dfn{configuration name}
-with the @option{--host} option; the host and target will default to be
-the same as the host machine. (If you are building a cross-compiler,
-see @ref{Cross-Compiler}.)
-
-Here is an example:
-
-@smallexample
-./configure --host=sparc-sun-sunos4.1
-@end smallexample
-
-A configuration name may be canonical or it may be more or less
-abbreviated.
-
-A canonical configuration name has three parts, separated by dashes.
-It looks like this: @samp{@var{cpu}-@var{company}-@var{system}}.
-(The three parts may themselves contain dashes; @file{configure}
-can figure out which dashes serve which purpose.) For example,
-@samp{m68k-sun-sunos4.1} specifies a Sun 3.
-
-You can also replace parts of the configuration by nicknames or aliases.
-For example, @samp{sun3} stands for @samp{m68k-sun}, so
-@samp{sun3-sunos4.1} is another way to specify a Sun 3.
-
-You can specify a version number after any of the system types, and some
-of the CPU types. In most cases, the version is irrelevant, and will be
-ignored. So you might as well specify the version if you know it.
-
-See @ref{Configurations}, for a list of supported configuration names and
-notes on many of the configurations. You should check the notes in that
-section before proceeding any further with the installation of GNU CC@.
-
-@end enumerate
-
-@ifnothtml
-@node Configurations, Cross-Compiler, , Old
-@section Configurations Supported by GNU CC
-@end ifnothtml
-@html
-<h2>@anchor{Configurations}Configurations Supported by GNU CC</h2>
-@end html
-@cindex configurations supported by GNU CC
-
-Here are the possible CPU types:
-
-@quotation
-@c gmicro, fx80, spur and tahoe omitted since they don't work.
-1750a, a29k, alpha, arm, avr, c@var{n}, clipper, dsp16xx, elxsi, fr30, h8300,
-hppa1.0, hppa1.1, i370, i386, i486, i586, i686, i786, i860, i960, m32r,
-m68000, m68k, m6811, m6812, m88k, mcore, mips, mipsel, mips64, mips64el,
-mn10200, mn10300, ns32k, pdp11, powerpc, powerpcle, romp, rs6000, sh, sparc,
-sparclite, sparc64, v850, vax, we32k.
-@end quotation
-
-Here are the recognized company names. As you can see, customary
-abbreviations are used rather than the longer official names.
-
-@c What should be done about merlin, tek*, dolphin?
-@quotation
-acorn, alliant, altos, apollo, apple, att, bull,
-cbm, convergent, convex, crds, dec, dg, dolphin,
-elxsi, encore, harris, hitachi, hp, ibm, intergraph, isi,
-mips, motorola, ncr, next, ns, omron, plexus,
-sequent, sgi, sony, sun, tti, unicom, wrs.
-@end quotation
-
-The company name is meaningful only to disambiguate when the rest of
-the information supplied is insufficient. You can omit it, writing
-just @samp{@var{cpu}-@var{system}}, if it is not needed. For example,
-@samp{vax-ultrix4.2} is equivalent to @samp{vax-dec-ultrix4.2}.
-
-Here is a list of system types:
-
-@quotation
-386bsd, aix, acis, amigaos, aos, aout, aux, bosx, bsd, clix, coff, ctix, cxux,
-dgux, dynix, ebmon, ecoff, elf, esix, freebsd, hms, genix, gnu, linux,
-linux-gnu, hiux, hpux, iris, irix, isc, luna, lynxos, mach, minix, msdos, mvs,
-netbsd, newsos, nindy, ns, osf, osfrose, ptx, riscix, riscos, rtu, sco, sim,
-solaris, sunos, sym, sysv, udi, ultrix, unicos, uniplus, unos, vms, vsta,
-vxworks, winnt, xenix.
-@end quotation
-
-@noindent
-You can omit the system type; then @file{configure} guesses the
-operating system from the CPU and company.
-
-You can add a version number to the system type; this may or may not
-make a difference. For example, you can write @samp{bsd4.3} or
-@samp{bsd4.4} to distinguish versions of BSD@. In practice, the version
-number is most needed for @samp{sysv3} and @samp{sysv4}, which are often
-treated differently.
-
-@samp{linux-gnu} is the canonical name for the GNU/Linux target; however
-GNU CC will also accept @samp{linux}. The version of the kernel in use is
-not relevant on these systems. A suffix such as @samp{libc1} or @samp{aout}
-distinguishes major versions of the C library; all of the suffixed versions
-are obsolete.
-
-If you specify an impossible combination such as @samp{i860-dg-vms},
-then you may get an error message from @file{configure}, or it may
-ignore part of the information and do the best it can with the rest.
-@file{configure} always prints the canonical name for the alternative
-that it used. GNU CC does not support all possible alternatives.
-
-Often a particular model of machine has a name. Many machine names are
-recognized as aliases for CPU/company combinations. Thus, the machine
-name @samp{sun3}, mentioned above, is an alias for @samp{m68k-sun}.
-Sometimes we accept a company name as a machine name, when the name is
-popularly used for a particular machine. Here is a table of the known
-machine names:
-
-@quotation
-3300, 3b1, 3b@var{n}, 7300, altos3068, altos,
-apollo68, att-7300, balance,
-convex-c@var{n}, crds, decstation-3100,
-decstation, delta, encore,
-fx2800, gmicro, hp7@var{nn}, hp8@var{nn},
-hp9k2@var{nn}, hp9k3@var{nn}, hp9k7@var{nn},
-hp9k8@var{nn}, iris4d, iris, isi68,
-m3230, magnum, merlin, miniframe,
-mmax, news-3600, news800, news, next,
-pbd, pc532, pmax, powerpc, powerpcle, ps2, risc-news,
-rtpc, sun2, sun386i, sun386, sun3,
-sun4, symmetry, tower-32, tower.
-@end quotation
-
-@noindent
-Remember that a machine name specifies both the cpu type and the company
-name.
-If you want to install your own homemade configuration files, you can
-use @samp{local} as the company name to access them. If you use
-configuration @samp{@var{cpu}-local}, the configuration name
-without the cpu prefix
-is used to form the configuration file names.
-
-Thus, if you specify @samp{m68k-local}, configuration uses
-files @file{m68k.md}, @file{local.h}, @file{m68k.c},
-@file{xm-local.h}, @file{t-local}, and @file{x-local}, all in the
-directory @file{config/m68k}.
-
-Here is a list of configurations that have special treatment or special
-things you must know:
-
-@table @samp
-@item vax-dec-vms
-See @ref{VMS Install}, for details on how to install GNU CC on VMS@.
-@end table
-
-@ifnothtml
-@node Cross-Compiler, VMS Install, Configurations, Old
-@section Building and Installing a Cross-Compiler
-@end ifnothtml
-@html
-<h2>@anchor{Cross-Compiler}Building and Installing a Cross-Compiler</h2>
-@end html
-@cindex cross-compiler, installation
-
-GNU CC can function as a cross-compiler for many machines, but not all.
-
-@itemize @bullet
-@item
-Cross-compilers for the Mips as target using the Mips assembler
-currently do not work, because the auxiliary programs
-@file{mips-tdump.c} and @file{mips-tfile.c} can't be compiled on
-anything but a Mips. It does work to cross compile for a Mips
-if you use the GNU assembler and linker.
-
-@item
-Cross-compilers between machines with different floating point formats
-have not all been made to work. GNU CC now has a floating point
-emulator with which these can work, but each target machine description
-needs to be updated to take advantage of it.
-
-@item
-Cross-compilation between machines of different word sizes is
-somewhat problematic and sometimes does not work.
-@end itemize
-
-Since GNU CC generates assembler code, you probably need a
-cross-assembler that GNU CC can run, in order to produce object files.
-If you want to link on other than the target machine, you need a
-cross-linker as well. You also need header files and libraries suitable
-for the target machine that you can install on the host machine.
-
-@ifnothtml
-@menu
-* Steps of Cross:: Using a cross-compiler involves several steps
- that may be carried out on different machines.
-* Configure Cross:: Configuring a cross-compiler.
-* Tools and Libraries:: Where to put the linker and assembler, and the C library.
-* Cross Headers:: Finding and installing header files
- for a cross-compiler.
-* Build Cross:: Actually compiling the cross-compiler.
-@end menu
-@end ifnothtml
-
-@ifnothtml
-@node Steps of Cross, Configure Cross, , Cross-Compiler
-@subsection Steps of Cross-Compilation
-@end ifnothtml
-@html
-<h2>Steps of Cross-Compilation</h2>
-@end html
-
-To compile and run a program using a cross-compiler involves several
-steps:
-
-@itemize @bullet
-@item
-Run the cross-compiler on the host machine to produce assembler files
-for the target machine. This requires header files for the target
-machine.
-
-@item
-Assemble the files produced by the cross-compiler. You can do this
-either with an assembler on the target machine, or with a
-cross-assembler on the host machine.
-
-@item
-Link those files to make an executable. You can do this either with a
-linker on the target machine, or with a cross-linker on the host
-machine. Whichever machine you use, you need libraries and certain
-startup files (typically @file{crt@dots{}.o}) for the target machine.
-@end itemize
-
-It is most convenient to do all of these steps on the same host machine,
-since then you can do it all with a single invocation of GNU CC@. This
-requires a suitable cross-assembler and cross-linker. For some targets,
-the GNU assembler and linker are available.
-
-@ifnothtml
-@node Configure Cross, Tools and Libraries, Steps of Cross, Cross-Compiler
-@subsection Configuring a Cross-Compiler
-@end ifnothtml
-@html
-<h2>Configuring a Cross-Compiler</h2>
-@end html
-
-To build GNU CC as a cross-compiler, you start out by running
-@file{configure}. Use the @option{--target=@var{target}} to specify the
-target type. If @file{configure} was unable to correctly identify the
-system you are running on, also specify the @option{--build=@var{build}}
-option. For example, here is how to configure for a cross-compiler that
-produces code for an HP 68030 system running BSD on a system that
-@file{configure} can correctly identify:
-
-@smallexample
-./configure --target=m68k-hp-bsd4.3
-@end smallexample
-
-@ifnothtml
-@node Tools and Libraries, Cross Headers, Configure Cross, Cross-Compiler
-@subsection Tools and Libraries for a Cross-Compiler
-@end ifnothtml
-@html
-<h2>Tools and Libraries for a Cross-Compiler</h2>
-@end html
-
-If you have a cross-assembler and cross-linker available, you should
-install them now. Put them in the directory
-@file{/usr/local/@var{target}/bin}. Here is a table of the tools
-you should put in this directory:
-
-@table @file
-@item as
-This should be the cross-assembler.
-
-@item ld
-This should be the cross-linker.
-
-@item ar
-This should be the cross-archiver: a program which can manipulate
-archive files (linker libraries) in the target machine's format.
-
-@item ranlib
-This should be a program to construct a symbol table in an archive file.
-@end table
-
-The installation of GNU CC will find these programs in that directory,
-and copy or link them to the proper place to for the cross-compiler to
-find them when run later.
-
-The easiest way to provide these files is to build the Binutils package
-and GAS@. Configure them with the same @option{--host} and @option{--target}
-options that you use for configuring GNU CC, then build and install
-them. They install their executables automatically into the proper
-directory. Alas, they do not support all the targets that GNU CC
-supports.
-
-If you want to install libraries to use with the cross-compiler, such as
-a standard C library, put them in the directory
-@file{/usr/local/@var{target}/lib}; installation of GNU CC copies
-all the files in that subdirectory into the proper place for GNU CC to
-find them and link with them. Here's an example of copying some
-libraries from a target machine:
-
-@example
-ftp @var{target-machine}
-lcd /usr/local/@var{target}/lib
-cd /lib
-get libc.a
-cd /usr/lib
-get libg.a
-get libm.a
-quit
-@end example
-
-@noindent
-The precise set of libraries you'll need, and their locations on
-the target machine, vary depending on its operating system.
-
-@cindex start files
-Many targets require ``start files'' such as @file{crt0.o} and
-@file{crtn.o} which are linked into each executable; these too should be
-placed in @file{/usr/local/@var{target}/lib}. There may be several
-alternatives for @file{crt0.o}, for use with profiling or other
-compilation options. Check your target's definition of
-@code{STARTFILE_SPEC} to find out what start files it uses.
-Here's an example of copying these files from a target machine:
-
-@example
-ftp @var{target-machine}
-lcd /usr/local/@var{target}/lib
-prompt
-cd /lib
-mget *crt*.o
-cd /usr/lib
-mget *crt*.o
-quit
-@end example
-
-@ifnothtml
-@node Cross Headers, Build Cross, Tools and Libraries, Cross-Compiler
-@subsection Cross-Compilers and Header Files
-@end ifnothtml
-@html
-<h2>Cross-Compilers and Header Files</h2>
-@end html
-
-If you are cross-compiling a standalone program or a program for an
-embedded system, then you may not need any header files except the few
-that are part of GNU CC (and those of your program). However, if you
-intend to link your program with a standard C library such as
-@file{libc.a}, then you probably need to compile with the header files
-that go with the library you use.
-
-The GNU C compiler does not come with these files, because (1) they are
-system-specific, and (2) they belong in a C library, not in a compiler.
-
-If the GNU C library supports your target machine, then you can get the
-header files from there (assuming you actually use the GNU library when
-you link your program).
-
-If your target machine comes with a C compiler, it probably comes with
-suitable header files also. If you make these files accessible from the host
-machine, the cross-compiler can use them also.
-
-Otherwise, you're on your own in finding header files to use when
-cross-compiling.
-
-When you have found suitable header files, you should put them in the
-directory @file{/usr/local/@var{target}/include}, before building the
-cross compiler. Then installation will run fixincludes properly and
-install the corrected versions of the header files where the compiler
-will use them.
-
-Provide the header files before you build the cross-compiler, because
-the build stage actually runs the cross-compiler to produce parts of
-@file{libgcc.a}. (These are the parts that @emph{can} be compiled with
-GNU CC@.) Some of them need suitable header files.
-
-Here's an example showing how to copy the header files from a target
-machine. On the target machine, do this:
-
-@example
-(cd /usr/include; tar cf - .) > tarfile
-@end example
-
-Then, on the host machine, do this:
-
-@example
-ftp @var{target-machine}
-lcd /usr/local/@var{target}/include
-get tarfile
-quit
-tar xf tarfile
-@end example
-
-@ifnothtml
-@node Build Cross, , Cross Headers, Cross-Compiler
-@subsection Actually Building the Cross-Compiler
-@end ifnothtml
-@html
-<h2>Actually Building the Cross-Compiler</h2>
-@end html
-
-Now you can proceed just as for compiling a single-machine compiler
-through the step of building stage 1.
-
-If your target is exotic, you may need to provide the header file
-@file{float.h}.One way to do this is to compile @file{enquire} and run
-it on your target machine. The job of @file{enquire} is to run on the
-target machine and figure out by experiment the nature of its floating
-point representation. @file{enquire} records its findings in the header
-file @file{float.h}. If you can't produce this file by running
-@file{enquire} on the target machine, then you will need to come up with
-a suitable @file{float.h} in some other way (or else, avoid using it in
-your programs).
-
-Do not try to build stage 2 for a cross-compiler. It doesn't work to
-rebuild GNU CC as a cross-compiler using the cross-compiler, because
-that would produce a program that runs on the target machine, not on the
-host. For example, if you compile a 386-to-68030 cross-compiler with
-itself, the result will not be right either for the 386 (because it was
-compiled into 68030 code) or for the 68030 (because it was configured
-for a 386 as the host). If you want to compile GNU CC into 68030 code,
-whether you compile it on a 68030 or with a cross-compiler on a 386, you
-must specify a 68030 as the host when you configure it.
-
-To install the cross-compiler, use @samp{make install}, as usual.
-
-@ifnothtml
-@node VMS Install, , Cross-Compiler, Old
-@section Installing GNU CC on VMS
-@end ifnothtml
-@html
-<h2>@anchor{VMS Install}Installing GNU CC on VMS</h2>
-@end html
-@cindex VMS installation
-@cindex installing GNU CC on VMS
-
-The VMS version of GNU CC is distributed in a backup saveset containing
-both source code and precompiled binaries.
-
-To install the @file{gcc} command so you can use the compiler easily, in
-the same manner as you use the VMS C compiler, you must install the VMS CLD
-file for GNU CC as follows:
-
-@enumerate
-@item
-Define the VMS logical names @samp{GNU_CC} and @samp{GNU_CC_INCLUDE}
-to point to the directories where the GNU CC executables
-(@file{gcc-cpp.exe}, @file{gcc-cc1.exe}, etc.) and the C include files are
-kept respectively. This should be done with the commands:
-
-@smallexample
-$ assign /system /translation=concealed -
- disk:[gcc.] gnu_cc
-$ assign /system /translation=concealed -
- disk:[gcc.include.] gnu_cc_include
-@end smallexample
-
-@noindent
-with the appropriate disk and directory names. These commands can be
-placed in your system startup file so they will be executed whenever
-the machine is rebooted. You may, if you choose, do this via the
-@file{GCC_INSTALL.COM} script in the @file{[GCC]} directory.
-
-@item
-Install the @file{GCC} command with the command line:
-
-@smallexample
-$ set command /table=sys$common:[syslib]dcltables -
- /output=sys$common:[syslib]dcltables gnu_cc:[000000]gcc
-$ install replace sys$common:[syslib]dcltables
-@end smallexample
-
-@item
-To install the help file, do the following:
-
-@smallexample
-$ library/help sys$library:helplib.hlb gcc.hlp
-@end smallexample
-
-@noindent
-Now you can invoke the compiler with a command like @samp{gcc /verbose
-file.c}, which is equivalent to the command @samp{gcc -v -c file.c} in
-Unix.
-@end enumerate
-
-If you wish to use GNU C++ you must first install GNU CC, and then
-perform the following steps:
-
-@enumerate
-@item
-Define the VMS logical name @samp{GNU_GXX_INCLUDE} to point to the
-directory where the preprocessor will search for the C++ header files.
-This can be done with the command:
-
-@smallexample
-$ assign /system /translation=concealed -
- disk:[gcc.gxx_include.] gnu_gxx_include
-@end smallexample
-
-@noindent
-with the appropriate disk and directory name. If you are going to be
-using a C++ runtime library, this is where its install procedure will install
-its header files.
-
-@item
-Obtain the file @file{gcc-cc1plus.exe}, and place this in the same
-directory that @file{gcc-cc1.exe} is kept.
-
-The GNU C++ compiler can be invoked with a command like @samp{gcc /plus
-/verbose file.cc}, which is equivalent to the command @samp{g++ -v -c
-file.cc} in Unix.
-@end enumerate
-
-We try to put corresponding binaries and sources on the VMS distribution
-tape. But sometimes the binaries will be from an older version than the
-sources, because we don't always have time to update them. (Use the
-@samp{/version} option to determine the version number of the binaries and
-compare it with the source file @file{version.c} to tell whether this is
-so.) In this case, you should use the binaries you get to recompile the
-sources. If you must recompile, here is how:
-
-@enumerate
-@item
-Execute the command procedure @file{vmsconfig.com} to set up the files
-@file{tm.h}, @file{config.h}, @file{aux-output.c}, and @file{md.}, and
-to create files @file{tconfig.h} and @file{hconfig.h}. This procedure
-also creates several linker option files used by @file{make-cc1.com} and
-a data file used by @file{make-l2.com}.
-
-@smallexample
-$ @@vmsconfig.com
-@end smallexample
-
-@item
-Setup the logical names and command tables as defined above. In
-addition, define the VMS logical name @samp{GNU_BISON} to point at the
-to the directories where the Bison executable is kept. This should be
-done with the command:
-
-@smallexample
-$ assign /system /translation=concealed -
- disk:[bison.] gnu_bison
-@end smallexample
-
-You may, if you choose, use the @file{INSTALL_BISON.COM} script in the
-@file{[BISON]} directory.
-
-@item
-Install the @samp{BISON} command with the command line:
-
-@smallexample
-$ set command /table=sys$common:[syslib]dcltables -
- /output=sys$common:[syslib]dcltables -
- gnu_bison:[000000]bison
-$ install replace sys$common:[syslib]dcltables
-@end smallexample
-
-@item
-Type @samp{@@make-gcc} to recompile everything, or submit the file
-@file{make-gcc.com} to a batch queue. If you wish to build the GNU C++
-compiler as well as the GNU CC compiler, you must first edit
-@file{make-gcc.com} and follow the instructions that appear in the
-comments.
-
-@item
-In order to use GCC, you need a library of functions which GCC compiled code
-will call to perform certain tasks, and these functions are defined in the
-file @file{libgcc2.c}. To compile this you should use the command procedure
-@file{make-l2.com}, which will generate the library @file{libgcc2.olb}.
-@file{libgcc2.olb} should be built using the compiler built from
-the same distribution that @file{libgcc2.c} came from, and
-@file{make-gcc.com} will automatically do all of this for you.
-
-To install the library, use the following commands:
-
-@smallexample
-$ library gnu_cc:[000000]gcclib/delete=(new,eprintf)
-$ library gnu_cc:[000000]gcclib/delete=L_*
-$ library libgcc2/extract=*/output=libgcc2.obj
-$ library gnu_cc:[000000]gcclib libgcc2.obj
-@end smallexample
-
-The first command simply removes old modules that will be replaced with
-modules from @file{libgcc2} under different module names. The modules
-@code{new} and @code{eprintf} may not actually be present in your
-@file{gcclib.olb}---if the VMS librarian complains about those modules
-not being present, simply ignore the message and continue on with the
-next command. The second command removes the modules that came from the
-previous version of the library @file{libgcc2.c}.
-
-Whenever you update the compiler on your system, you should also update the
-library with the above procedure.
-
-@item
-You may wish to build GCC in such a way that no files are written to the
-directory where the source files reside. An example would be the when
-the source files are on a read-only disk. In these cases, execute the
-following DCL commands (substituting your actual path names):
-
-@smallexample
-$ assign dua0:[gcc.build_dir.]/translation=concealed, -
- dua1:[gcc.source_dir.]/translation=concealed gcc_build
-$ set default gcc_build:[000000]
-@end smallexample
-
-@noindent
-where the directory @file{dua1:[gcc.source_dir]} contains the source
-code, and the directory @file{dua0:[gcc.build_dir]} is meant to contain
-all of the generated object files and executables. Once you have done
-this, you can proceed building GCC as described above. (Keep in mind
-that @file{gcc_build} is a rooted logical name, and thus the device
-names in each element of the search list must be an actual physical
-device name rather than another rooted logical name).
-
-@item
-@strong{If you are building GNU CC with a previous version of GNU CC,
-you also should check to see that you have the newest version of the
-assembler}. In particular, GNU CC version 2 treats global constant
-variables slightly differently from GNU CC version 1, and GAS version
-1.38.1 does not have the patches required to work with GCC version 2.
-If you use GAS 1.38.1, then @code{extern const} variables will not have
-the read-only bit set, and the linker will generate warning messages
-about mismatched psect attributes for these variables. These warning
-messages are merely a nuisance, and can safely be ignored.
-
-@item
-If you want to build GNU CC with the VAX C compiler, you will need to
-make minor changes in @file{make-cccp.com} and @file{make-cc1.com}
-to choose alternate definitions of @code{CC}, @code{CFLAGS}, and
-@code{LIBS}. See comments in those files. However, you must
-also have a working version of the GNU assembler (GNU as, aka GAS) as
-it is used as the back end for GNU CC to produce binary object modules
-and is not included in the GNU CC sources. GAS is also needed to
-compile @file{libgcc2} in order to build @file{gcclib} (see above);
-@file{make-l2.com} expects to be able to find it operational in
-@file{gnu_cc:[000000]gnu-as.exe}.
-
-To use GNU CC on VMS, you need the VMS driver programs
-@file{gcc.exe}, @file{gcc.com}, and @file{gcc.cld}. They are
-distributed with the VMS binaries (@file{gcc-vms}) rather than the
-GNU CC sources. GAS is also included in @file{gcc-vms}, as is Bison.
-
-Once you have successfully built GNU CC with VAX C, you should use the
-resulting compiler to rebuild itself. Before doing this, be sure to
-restore the @code{CC}, @code{CFLAGS}, and @code{LIBS} definitions in
-@file{make-cccp.com} and @file{make-cc1.com}. The second generation
-compiler will be able to take advantage of many optimizations that must
-be suppressed when building with other compilers.
-@end enumerate
-
-Under previous versions of GNU CC, the generated code would occasionally
-give strange results when linked with the sharable @file{VAXCRTL} library.
-Now this should work.
-
-Even with this version, however, GNU CC itself should not be linked with
-the sharable @file{VAXCRTL}. The version of @code{qsort} in
-@file{VAXCRTL} has a bug (known to be present in VMS versions V4.6
-through V5.5) which causes the compiler to fail.
-
-The executables are generated by @file{make-cc1.com} and
-@file{make-cccp.com} use the object library version of @file{VAXCRTL} in
-order to make use of the @code{qsort} routine in @file{gcclib.olb}. If
-you wish to link the compiler executables with the shareable image
-version of @file{VAXCRTL}, you should edit the file @file{tm.h} (created
-by @file{vmsconfig.com}) to define the macro @code{QSORT_WORKAROUND}.
-
-@code{QSORT_WORKAROUND} is always defined when GNU CC is compiled with
-VAX C, to avoid a problem in case @file{gcclib.olb} is not yet
-available.
diff --git a/contrib/gcc/doc/install.texi b/contrib/gcc/doc/install.texi
deleted file mode 100644
index 350d365..0000000
--- a/contrib/gcc/doc/install.texi
+++ /dev/null
@@ -1,3928 +0,0 @@
-\input texinfo.tex @c -*-texinfo-*-
-@c @ifnothtml
-@c %**start of header
-@setfilename install.info
-@settitle Installing GCC
-@setchapternewpage odd
-@c %**end of header
-@c @end ifnothtml
-
-@c Specify title for specific html page
-@ifset indexhtml
-@settitle Installing GCC
-@end ifset
-@ifset specifichtml
-@settitle Host/Target specific installation notes for GCC
-@end ifset
-@ifset downloadhtml
-@settitle Downloading GCC
-@end ifset
-@ifset configurehtml
-@settitle Installing GCC: Configuration
-@end ifset
-@ifset buildhtml
-@settitle Installing GCC: Building
-@end ifset
-@ifset testhtml
-@settitle Installing GCC: Testing
-@end ifset
-@ifset finalinstallhtml
-@settitle Installing GCC: Final installation
-@end ifset
-@ifset binarieshtml
-@settitle Installing GCC: Binaries
-@end ifset
-@ifset oldhtml
-@settitle Installing GCC: Old documentation
-@end ifset
-@ifset gfdlhtml
-@settitle Installing GCC: GNU Free Documentation License
-@end ifset
-
-@c Copyright (C) 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-@c 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
-@c *** Converted to texinfo by Dean Wakerley, dean@wakerley.com
-
-@c Include everything if we're not making html
-@ifnothtml
-@set indexhtml
-@set specifichtml
-@set downloadhtml
-@set configurehtml
-@set buildhtml
-@set testhtml
-@set finalinstallhtml
-@set binarieshtml
-@set oldhtml
-@set gfdlhtml
-@end ifnothtml
-
-@c Part 2 Summary Description and Copyright
-@macro copyrightnotice
-Copyright @copyright{} 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-1999, 2000, 2001, 2002 Free Software Foundation, Inc.
-@sp 1
-Permission is granted to copy, distribute and/or modify this document
-under the terms of the GNU Free Documentation License, Version 1.1 or
-any later version published by the Free Software Foundation; with no
-Invariant Sections, the Front-Cover texts being (a) (see below), and
-with the Back-Cover Texts being (b) (see below). A copy of the
-license is included in the section entitled ``@uref{./gfdl.html,,GNU
-Free Documentation License}''.
-
-(a) The FSF's Front-Cover Text is:
-
- A GNU Manual
-
-(b) The FSF's Back-Cover Text is:
-
- You have freedom to copy and modify this GNU Manual, like GNU
- software. Copies published by the Free Software Foundation raise
- funds for GNU development.
-@end macro
-@ifinfo
-@copyrightnotice{}
-@end ifinfo
-
-@c Part 3 Titlepage and Copyright
-@titlepage
-@sp 10
-@comment The title is printed in a large font.
-@center @titlefont{Installing GCC}
-
-@c The following two commands start the copyright page.
-@page
-@vskip 0pt plus 1filll
-@copyrightnotice{}
-@end titlepage
-
-@c Part 4 Top node and Master Menu
-@ifinfo
-@node Top, , , (dir)
-@comment node-name, next, Previous, up
-
-@menu
-* Installing GCC:: This document describes the generic installation
- procedure for GCC as well as detailing some target
- specific installation instructions.
-
-* Specific:: Host/target specific installation notes for GCC.
-* Binaries:: Where to get pre-compiled binaries.
-
-* Old:: Old installation documentation.
-
-* GNU Free Documentation License:: How you can copy and share this manual.
-* Concept Index:: This index has two entries.
-@end menu
-@end ifinfo
-
-@c Part 5 The Body of the Document
-@c ***Installing GCC**********************************************************
-@ifnothtml
-@comment node-name, next, previous, up
-@node Installing GCC, Binaries, , Top
-@end ifnothtml
-@ifset indexhtml
-@ifnothtml
-@chapter Installing GCC
-@end ifnothtml
-
-The latest version of this document is always available at
-@uref{http://gcc.gnu.org/install/,,http://gcc.gnu.org/install/}.
-
-This document describes the generic installation procedure for GCC as well
-as detailing some target specific installation instructions.
-
-GCC includes several components that previously were separate distributions
-with their own installation instructions. This document supersedes all
-package specific installation instructions.
-
-@emph{Before} starting the build/install procedure please check the
-@ifnothtml
-@ref{Specific, host/target specific installation notes}.
-@end ifnothtml
-@ifhtml
-@uref{specific.html,,host/target specific installation notes}.
-@end ifhtml
-We recommend you browse the entire generic installation instructions before
-you proceed.
-
-Lists of successful builds for released versions of GCC are
-available at @uref{http://gcc.gnu.org/buildstat.html}.
-These lists are updated as new information becomes available.
-
-The installation procedure itself is broken into five steps.
-
-@ifinfo
-@menu
-* Downloading the source::
-* Configuration::
-* Building::
-* Testing:: (optional)
-* Final install::
-@end menu
-@end ifinfo
-@ifhtml
-@enumerate
-@item
-@uref{download.html,,Downloading the source}
-@item
-@uref{configure.html,,Configuration}
-@item
-@uref{build.html,,Building}
-@item
-@uref{test.html,,Testing} (optional)
-@item
-@uref{finalinstall.html,,Final install}
-@end enumerate
-@end ifhtml
-
-Please note that GCC does not support @samp{make uninstall} and probably
-won't do so in the near future as this would open a can of worms. Instead,
-we suggest that you install GCC into a directory of its own and simply
-remove that directory when you do not need that specific version of GCC
-any longer, and, if shared libraries are installed there as well, no
-more binaries exist that use them.
-
-@ifhtml
-There are also some @uref{old.html,,old installation instructions},
-which are mostly obsolete but still contain some information which has
-not yet been merged into the main part of this manual.
-@end ifhtml
-
-@html
-<hr />
-<p>
-@end html
-@ifhtml
-@uref{./index.html,,Return to the GCC Installation page}
-
-@copyrightnotice{}
-@end ifhtml
-@end ifset
-
-@c ***Downloading the source**************************************************
-@ifnothtml
-@comment node-name, next, previous, up
-@node Downloading the source, Configuration, , Installing GCC
-@end ifnothtml
-@ifset downloadhtml
-@ifnothtml
-@chapter Downloading GCC
-@end ifnothtml
-@cindex Downloading GCC
-@cindex Downloading the Source
-
-GCC is distributed via @uref{http://gcc.gnu.org/cvs.html,,CVS} and FTP
-tarballs compressed with @command{gzip} or
-@command{bzip2}. It is possible to download a full distribution or specific
-components.
-
-Please refer to our @uref{http://gcc.gnu.org/releases.html,,releases web page}
-for information on how to obtain GCC@.
-
-The full distribution includes the C, C++, Objective-C, Fortran, Java,
-and Ada (in case of GCC 3.1 and later) compilers. The full distribution
-also includes runtime libraries for C++, Objective-C, Fortran, and Java.
-In GCC 3.0 and later versions, GNU compiler testsuites are also included
-in the full distribution.
-
-If you choose to download specific components, you must download the core
-GCC distribution plus any language specific distributions you wish to
-use. The core distribution includes the C language front end as well as the
-shared components. Each language has a tarball which includes the language
-front end as well as the language runtime (when appropriate).
-
-Unpack the core distribution as well as any language specific
-distributions in the same directory.
-
-If you also intend to build binutils (either to upgrade an existing
-installation or for use in place of the corresponding tools of your
-OS), unpack the binutils distribution either in the same directory or
-a separate one. In the latter case, add symbolic links to any
-components of the binutils you intend to build alongside the compiler
-(@file{bfd}, @file{binutils}, @file{gas}, @file{gprof}, @file{ld},
-@file{opcodes}, @dots{}) to the directory containing the GCC sources.
-
-@html
-<hr />
-<p>
-@end html
-@ifhtml
-@uref{./index.html,,Return to the GCC Installation page}
-@end ifhtml
-@end ifset
-
-@c ***Configuration***********************************************************
-@ifnothtml
-@comment node-name, next, previous, up
-@node Configuration, Building, Downloading the source, Installing GCC
-@end ifnothtml
-@ifset configurehtml
-@ifnothtml
-@chapter Installing GCC: Configuration
-@end ifnothtml
-@cindex Configuration
-@cindex Installing GCC: Configuration
-
-Like most GNU software, GCC must be configured before it can be built.
-This document describes the recommended configuration procedure
-for both native and cross targets.
-
-We use @var{srcdir} to refer to the toplevel source directory for
-GCC; we use @var{objdir} to refer to the toplevel build/object directory.
-
-If you obtained the sources via CVS, @var{srcdir} must refer to the top
-@file{gcc} directory, the one where the @file{MAINTAINERS} can be found,
-and not its @file{gcc} subdirectory, otherwise the build will fail.
-
-First, we @strong{highly} recommend that GCC be built into a
-separate directory than the sources which does @strong{not} reside
-within the source tree. This is how we generally build GCC; building
-where @var{srcdir} == @var{objdir} should still work, but doesn't
-get extensive testing; building where @var{objdir} is a subdirectory
-of @var{srcdir} is unsupported.
-
-If you have previously built GCC in the same directory for a
-different target machine, do @samp{make distclean} to delete all files
-that might be invalid. One of the files this deletes is
-@file{Makefile}; if @samp{make distclean} complains that @file{Makefile}
-does not exist, it probably means that the directory is already suitably
-clean. However, with the recommended method of building in a separate
-@var{objdir}, you should simply use a different @var{objdir} for each
-target.
-
-Second, when configuring a native system, either @command{cc} or
-@command{gcc} must be in your path or you must set @env{CC} in
-your environment before running configure. Otherwise the configuration
-scripts may fail.
-
-Note that the bootstrap compiler and the resulting GCC must be link
-compatible, else the bootstrap will fail with linker errors about
-incompatible object file formats. Several multilibed targets are
-affected by this requirement, see
-@ifnothtml
-@ref{Specific, host/target specific installation notes}.
-@end ifnothtml
-@ifhtml
-@uref{specific.html,,host/target specific installation notes}.
-@end ifhtml
-
-To configure GCC:
-
-@example
- % mkdir @var{objdir}
- % cd @var{objdir}
- % @var{srcdir}/configure [@var{options}] [@var{target}]
-@end example
-
-
-@heading Target specification
-@itemize @bullet
-@item
-GCC has code to correctly determine the correct value for @var{target}
-for nearly all native systems. Therefore, we highly recommend you not
-provide a configure target when configuring a native compiler.
-
-@item
-@var{target} must be specified as @option{--target=@var{target}}
-when configuring a cross compiler; examples of valid targets would be
-i960-rtems, m68k-coff, sh-elf, etc.
-
-@item
-Specifying just @var{target} instead of @option{--target=@var{target}}
-implies that the host defaults to @var{target}.
-@end itemize
-
-
-@heading Options specification
-
-Use @var{options} to override several configure time options for
-GCC@. A list of supported @var{options} follows; @command{configure
---help} may list other options, but those not listed below may not
-work and should not normally be used.
-
-@table @code
-@item --prefix=@var{dirname}
-Specify the toplevel installation
-directory. This is the recommended way to install the tools into a directory
-other than the default. The toplevel installation directory defaults to
-@file{/usr/local}.
-
-We @strong{highly} recommend against @var{dirname} being the same or a
-subdirectory of @var{objdir} or vice versa.
-
-These additional options control where certain parts of the distribution
-are installed. Normally you should not need to use these options.
-@table @code
-@item --exec-prefix=@var{dirname}
-Specify the toplevel installation directory for architecture-dependent
-files. The default is @file{@var{prefix}}.
-
-@item --bindir=@var{dirname}
-Specify the installation directory for the executables called by users
-(such as @command{gcc} and @command{g++}). The default is
-@file{@var{exec-prefix}/bin}.
-
-@item --libdir=@var{dirname}
-Specify the installation directory for object code libraries and
-internal parts of GCC@. The default is @file{@var{exec-prefix}/lib}.
-
-@item --with-slibdir=@var{dirname}
-Specify the installation directory for the shared libgcc library. The
-default is @file{@var{libdir}}.
-
-@item --infodir=@var{dirname}
-Specify the installation directory for documentation in info format.
-The default is @file{@var{prefix}/info}.
-
-@item --mandir=@var{dirname}
-Specify the installation directory for manual pages. The default is
-@file{@var{prefix}/man}. (Note that the manual pages are only extracts from
-the full GCC manuals, which are provided in Texinfo format. The
-@command{g77} manpage is unmaintained and may be out of date; the others
-are derived by an automatic conversion process from parts of the full
-manual.)
-
-@item --with-gxx-include-dir=@var{dirname}
-Specify
-the installation directory for G++ header files. The default is
-@file{@var{prefix}/include/g++-v3}.
-
-@end table
-
-@item --program-prefix=@var{prefix}
-GCC supports some transformations of the names of its programs when
-installing them. This option prepends @var{prefix} to the names of
-programs to install in @var{bindir} (see above). For example, specifying
-@option{--program-prefix=foo-} would result in @samp{gcc}
-being installed as @file{/usr/local/bin/foo-gcc}.
-
-@item --program-suffix=@var{suffix}
-Appends @var{suffix} to the names of programs to install in @var{bindir}
-(see above). For example, specifying @option{--program-suffix=-3.1}
-would result in @samp{gcc} being installed as
-@file{/usr/local/bin/gcc-3.1}.
-
-@item --program-transform-name=@var{pattern}
-Applies the @samp{sed} script @var{pattern} to be applied to the names
-of programs to install in @var{bindir} (see above). @var{pattern} has to
-consist of one or more basic @samp{sed} editing commands, separated by
-semicolons. For example, if you want the @samp{gcc} program name to be
-transformed to the installed program @file{/usr/local/bin/myowngcc} and
-the @samp{g++} program name to be transformed to
-@file{/usr/local/bin/gspecial++} without changing other program names,
-you could use the pattern
-@option{--program-transform-name='s/^gcc$/myowngcc/; s/^g++$/gspecial++/'}
-to achieve this effect.
-
-All three options can be combined and used together, resulting in more
-complex conversion patterns. As a basic rule, @var{prefix} (and
-@var{suffix}) are prepended (appended) before further transformations
-can happen with a special transformation script @var{pattern}.
-
-As currently implemented, these options only take effect for native
-builds; cross compiler binaries' names are not transformed even when a
-transformation is explicitly asked for by one of these options.
-
-For native builds, some of the installed programs are also installed
-with the target alias in front of their name, as in
-@samp{i686-pc-linux-gnu-gcc}. All of the above transformations happen
-before the target alias is prepended to the name - so, specifying
-@option{--program-prefix=foo-} and @option{program-suffix=-3.1}, the
-resulting binary would be installed as
-@file{/usr/local/bin/i686-pc-linux-gnu-foo-gcc-3.1}.
-
-As a last shortcoming, none of the installed Ada programs are
-transformed yet, which will be fixed in some time.
-
-@item --with-local-prefix=@var{dirname}
-Specify the
-installation directory for local include files. The default is
-@file{/usr/local}. Specify this option if you want the compiler to
-search directory @file{@var{dirname}/include} for locally installed
-header files @emph{instead} of @file{/usr/local/include}.
-
-You should specify @option{--with-local-prefix} @strong{only} if your
-site has a different convention (not @file{/usr/local}) for where to put
-site-specific files.
-
-The default value for @option{--with-local-prefix} is @file{/usr/local}
-regardless of the value of @option{--prefix}. Specifying
-@option{--prefix} has no effect on which directory GCC searches for
-local header files. This may seem counterintuitive, but actually it is
-logical.
-
-The purpose of @option{--prefix} is to specify where to @emph{install
-GCC}. The local header files in @file{/usr/local/include}---if you put
-any in that directory---are not part of GCC@. They are part of other
-programs---perhaps many others. (GCC installs its own header files in
-another directory which is based on the @option{--prefix} value.)
-
-Both the local-prefix include directory and the GCC-prefix include
-directory are part of GCC's "system include" directories. Although these
-two directories are not fixed, they need to be searched in the proper
-order for the correct processing of the include_next directive. The
-local-prefix include directory is searched before the GCC-prefix
-include directory. Another characteristic of system include directories
-is that pedantic warnings are turned off for headers in these directories.
-
-Some autoconf macros add @option{-I @var{directory}} options to the
-compiler command line, to ensure that directories containing installed
-packages' headers are searched. When @var{directory} is one of GCC's
-system include directories, GCC will ignore the option so that system
-directories continue to be processed in the correct order. This
-may result in a search order different from what was specified but the
-directory will still be searched.
-
-GCC automatically searches for ordinary libraries using
-@env{GCC_EXEC_PREFIX}. Thus, when the same installation prefix is
-used for both GCC and packages, GCC will automatically search for
-both headers and libraries. This provides a configuration that is
-easy to use. GCC behaves in a manner similar to that when it is
-installed as a system compiler in @file{/usr}.
-
-Sites that need to install multiple versions of GCC may not want to
-use the above simple configuration. It is possible to use the
-@option{--program-prefix}, @option{--program-suffix} and
-@option{--program-transform-name} options to install multiple versions
-into a single directory, but it may be simpler to use different prefixes
-and the @option{--with-local-prefix} option to specify the location of the
-site-specific files for each version. It will then be necessary for
-users to specify explicitly the location of local site libraries
-(e.g., with @env{LIBRARY_PATH}).
-
-The same value can be used for both @option{--with-local-prefix} and
-@option{--prefix} provided it is not @file{/usr}. This can be used
-to avoid the default search of @file{/usr/local/include}.
-
-@strong{Do not} specify @file{/usr} as the @option{--with-local-prefix}!
-The directory you use for @option{--with-local-prefix} @strong{must not}
-contain any of the system's standard header files. If it did contain
-them, certain programs would be miscompiled (including GNU Emacs, on
-certain targets), because this would override and nullify the header
-file corrections made by the @command{fixincludes} script.
-
-Indications are that people who use this option use it based on mistaken
-ideas of what it is for. People use it as if it specified where to
-install part of GCC@. Perhaps they make this assumption because
-installing GCC creates the directory.
-
-@item --enable-shared[=@var{package}[,@dots{}]]
-Build shared versions of libraries, if shared libraries are supported on
-the target platform. Unlike GCC 2.95.x and earlier, shared libraries
-are enabled by default on all platforms that support shared libraries,
-except for @samp{libobjc} which is built as a static library only by
-default.
-
-If a list of packages is given as an argument, build shared libraries
-only for the listed packages. For other packages, only static libraries
-will be built. Package names currently recognized in the GCC tree are
-@samp{libgcc} (also known as @samp{gcc}), @samp{libstdc++} (not
-@samp{libstdc++-v3}), @samp{libffi}, @samp{zlib}, @samp{boehm-gc} and
-@samp{libjava}. Note that @samp{libobjc} does not recognize itself by
-any name, so, if you list package names in @option{--enable-shared},
-you will only get static Objective-C libraries. @samp{libf2c} and
-@samp{libiberty} do not support shared libraries at all.
-
-Use @option{--disable-shared} to build only static libraries. Note that
-@option{--disable-shared} does not accept a list of package names as
-argument, only @option{--enable-shared} does.
-
-@item @anchor{with-gnu-as}--with-gnu-as
-Specify that the compiler should assume that the
-assembler it finds is the GNU assembler. However, this does not modify
-the rules to find an assembler and will result in confusion if found
-assembler is not actually the GNU assembler. (Confusion will also
-result if the compiler finds the GNU assembler but has not been
-configured with @option{--with-gnu-as}.) If you have more than one
-assembler installed on your system, you may want to use this option in
-connection with @option{--with-as=@var{pathname}}.
-
-The following systems are the only ones where it makes a difference
-whether you use the GNU assembler. On any other system,
-@option{--with-gnu-as} has no effect.
-
-@itemize bullet
-@item @samp{hppa1.0-@var{any}-@var{any}}
-@item @samp{hppa1.1-@var{any}-@var{any}}
-@item @samp{i386-@var{any}-sysv}
-@item @samp{i386-@var{any}-isc}
-@item @samp{i860-@var{any}-bsd}
-@item @samp{m68k-bull-sysv}
-@item @samp{m68k-hp-hpux}
-@item @samp{m68k-sony-bsd}
-@item @samp{m68k-altos-sysv}
-@item @samp{m68000-hp-hpux}
-@item @samp{m68000-att-sysv}
-@item @samp{@var{any}-lynx-lynxos}
-@item @samp{mips-@var{any}}
-@end itemize
-
-On the systems listed above (except for the HP-PA, for ISC on the
-386, and for @samp{mips-sgi-irix5.*}), if you use the GNU assembler,
-you should also use the GNU linker (and specify @option{--with-gnu-ld}).
-
-@item --with-as=@var{pathname}
-Specify that the
-compiler should use the assembler pointed to by @var{pathname}, rather
-than the one found by the standard rules to find an assembler, which
-are:
-@itemize @bullet
-@item
-Check the
-@file{@var{exec_prefix}/lib/gcc-lib/@var{target}/@var{version}}
-directory, where @var{exec_prefix} defaults to @var{prefix} which
-defaults to @file{/usr/local} unless overridden by the
-@option{--prefix=@var{pathname}} switch described above. @var{target} is the
-target system triple, such as @samp{sparc-sun-solaris2.7}, and
-@var{version} denotes the GCC version, such as 3.0.
-@item
-Check operating system specific directories (e.g.@: @file{/usr/ccs/bin} on
-Sun Solaris 2).
-@end itemize
-Note that these rules do not check for the value of @env{PATH}. You may
-want to use @option{--with-as} if no assembler is installed in the
-directories listed above, or if you have multiple assemblers installed
-and want to choose one that is not found by the above rules.
-
-@item @anchor{with-gnu-ld}--with-gnu-ld
-Same as @uref{#with-gnu-as,,@option{--with-gnu-as}}
-but for linker.
-
-
-@item --with-ld=@var{pathname}
-Same as
-@option{--with-as}, but for the linker.
-
-@item --with-stabs
-Specify that stabs debugging
-information should be used instead of whatever format the host normally
-uses. Normally GCC uses the same debug format as the host system.
-
-On MIPS based systems and on Alphas, you must specify whether you want
-GCC to create the normal ECOFF debugging format, or to use BSD-style
-stabs passed through the ECOFF symbol table. The normal ECOFF debug
-format cannot fully handle languages other than C@. BSD stabs format can
-handle other languages, but it only works with the GNU debugger GDB@.
-
-Normally, GCC uses the ECOFF debugging format by default; if you
-prefer BSD stabs, specify @option{--with-stabs} when you configure GCC@.
-
-No matter which default you choose when you configure GCC, the user
-can use the @option{-gcoff} and @option{-gstabs+} options to specify explicitly
-the debug format for a particular compilation.
-
-@option{--with-stabs} is meaningful on the ISC system on the 386, also, if
-@option{--with-gas} is used. It selects use of stabs debugging
-information embedded in COFF output. This kind of debugging information
-supports C++ well; ordinary COFF debugging information does not.
-
-@option{--with-stabs} is also meaningful on 386 systems running SVR4. It
-selects use of stabs debugging information embedded in ELF output. The
-C++ compiler currently (2.6.0) does not support the DWARF debugging
-information normally used on 386 SVR4 platforms; stabs provide a
-workable alternative. This requires gas and gdb, as the normal SVR4
-tools can not generate or interpret stabs.
-
-@item --disable-multilib
-Specify that multiple target
-libraries to support different target variants, calling
-conventions, etc should not be built. The default is to build a
-predefined set of them.
-
-Some targets provide finer-grained control over which multilibs are built
-(e.g., @option{--disable-softfloat}):
-@table @code
-@item arc-*-elf*
-biendian.
-
-@item arm-*-*
-fpu, 26bit, underscore, interwork, biendian, nofmult.
-
-@item m68*-*-*
-softfloat, m68881, m68000, m68020.
-
-@item mips*-*-*
-single-float, biendian, softfloat.
-
-@item powerpc*-*-*, rs6000*-*-*
-aix64, pthread, softfloat, powercpu, powerpccpu, powerpcos, biendian,
-sysv, aix.
-
-@end table
-
-@item --enable-threads
-Specify that the target
-supports threads. This affects the Objective-C compiler and runtime
-library, and exception handling for other languages like C++ and Java.
-On some systems, this is the default.
-
-In general, the best (and, in many cases, the only known) threading
-model available will be configured for use. Beware that on some
-systems, gcc has not been taught what threading models are generally
-available for the system. In this case, @option{--enable-threads} is an
-alias for @option{--enable-threads=single}.
-
-@item --disable-threads
-Specify that threading support should be disabled for the system.
-This is an alias for @option{--enable-threads=single}.
-
-@item --enable-threads=@var{lib}
-Specify that
-@var{lib} is the thread support library. This affects the Objective-C
-compiler and runtime library, and exception handling for other languages
-like C++ and Java. The possibilities for @var{lib} are:
-
-@table @code
-@item aix
-AIX thread support.
-@item dce
-DCE thread support.
-@item mach
-Generic MACH thread support, known to work on NeXTSTEP@. (Please note
-that the file needed to support this configuration, @file{gthr-mach.h}, is
-missing and thus this setting will cause a known bootstrap failure.)
-@item no
-This is an alias for @samp{single}.
-@item posix
-Generic POSIX thread support.
-@item pthreads
-Same as @samp{posix} on arm*-*-linux*, *-*-chorusos* and *-*-freebsd*
-only. A future release of gcc might remove this alias or extend it
-to all platforms.
-@item rtems
-RTEMS thread support.
-@item single
-Disable thread support, should work for all platforms.
-@item solaris
-Sun Solaris 2 thread support.
-@item vxworks
-VxWorks thread support.
-@item win32
-Microsoft Win32 API thread support.
-@end table
-
-@item --with-cpu=@var{cpu}
-Specify which cpu variant the
-compiler should generate code for by default. This is currently
-only supported on the some ports, specifically arm, powerpc, and
-SPARC@. If configure does not recognize the model name (e.g.@: arm700,
-603e, or ultrasparc) you provide, please check the configure script
-for a complete list of supported models.
-
-@item --enable-altivec
-Specify that the target supports AltiVec vector enhancements. This
-option will adjust the ABI for AltiVec enhancements, as well as generate
-AltiVec code when appropriate. This option is only available for
-PowerPC systems.
-
-@item --enable-target-optspace
-Specify that target
-libraries should be optimized for code space instead of code speed.
-This is the default for the m32r platform.
-
-@item --disable-cpp
-Specify that a user visible @command{cpp} program should not be installed.
-
-@item --with-cpp-install-dir=@var{dirname}
-Specify that the user visible @command{cpp} program should be installed
-in @file{@var{prefix}/@var{dirname}/cpp}, in addition to @var{bindir}.
-
-@item --enable-maintainer-mode
-The build rules that
-regenerate the GCC master message catalog @file{gcc.pot} are normally
-disabled. This is because it can only be rebuilt if the complete source
-tree is present. If you have changed the sources and want to rebuild the
-catalog, configuring with @option{--enable-maintainer-mode} will enable
-this. Note that you need a recent version of the @code{gettext} tools
-to do so.
-
-@item --enable-version-specific-runtime-libs
-Specify
-that runtime libraries should be installed in the compiler specific
-subdirectory (@file{@var{libsubdir}}) rather than the usual places. In
-addition, @samp{libstdc++}'s include files will be installed in
-@file{@var{libsubdir}/include/g++} unless you overruled it by using
-@option{--with-gxx-include-dir=@var{dirname}}. Using this option is
-particularly useful if you intend to use several versions of GCC in
-parallel. This is currently supported by @samp{libf2c} and
-@samp{libstdc++}, and is the default for @samp{libobjc} which cannot be
-changed in this case.
-
-@item --enable-languages=@var{lang1},@var{lang2},@dots{}
-Specify that only a particular subset of compilers and
-their runtime libraries should be built. For a list of valid values for
-@var{langN} you can issue the following command in the
-@file{gcc} directory of your GCC source tree:@*
-@example
-grep language= */config-lang.in
-@end example
-Currently, you can use any of the following:
-@code{ada}, @code{c}, @code{c++}, @code{f77}, @code{java}, @code{objc}.
-Building the Ada compiler has special requirements, see below.@*
-If you do not pass this flag, all languages available in the @file{gcc}
-sub-tree will be configured. Re-defining @code{LANGUAGES} when calling
-@samp{make bootstrap} @strong{does not} work anymore, as those
-language sub-directories might not have been configured!
-
-@item --disable-libgcj
-Specify that the run-time libraries
-used by GCJ should not be built. This is useful in case you intend
-to use GCJ with some other run-time, or you're going to install it
-separately, or it just happens not to build on your particular
-machine. In general, if the Java front end is enabled, the GCJ
-libraries will be enabled too, unless they're known to not work on
-the target platform. If GCJ is enabled but @samp{libgcj} isn't built, you
-may need to port it; in this case, before modifying the top-level
-@file{configure.in} so that @samp{libgcj} is enabled by default on this platform,
-you may use @option{--enable-libgcj} to override the default.
-
-@item --with-dwarf2
-Specify that the compiler should
-use DWARF 2 debugging information as the default.
-
-@item --enable-win32-registry
-@itemx --enable-win32-registry=@var{key}
-@itemx --disable-win32-registry
-The @option{--enable-win32-registry} option enables Windows-hosted GCC
-to look up installations paths in the registry using the following key:
-
-@smallexample
-@code{HKEY_LOCAL_MACHINE\SOFTWARE\Free Software Foundation\@var{key}}
-@end smallexample
-
-@var{key} defaults to GCC version number, and can be overridden by the
-@option{--enable-win32-registry=@var{key}} option. Vendors and distributors
-who use custom installers are encouraged to provide a different key,
-perhaps one comprised of vendor name and GCC version number, to
-avoid conflict with existing installations. This feature is enabled
-by default, and can be disabled by @option{--disable-win32-registry}
-option. This option has no effect on the other hosts.
-
-@item --nfp
-Specify that the machine does not have a floating point unit. This
-option only applies to @samp{m68k-sun-sunos@var{n}} and
-@samp{m68k-isi-bsd}. On any other system, @option{--nfp} has no effect.
-
-@item --enable-checking
-@itemx --enable-checking=@var{list}
-When you specify this option, the compiler is built to perform checking
-of tree node types when referencing fields of that node, and some other
-internal consistency checks. This does not change the generated code,
-but adds error checking within the compiler. This will slow down the
-compiler and may only work properly if you are building the compiler
-with GCC@. This is on by default when building from CVS or snapshots,
-but off for releases. More control over the checks may be had by
-specifying @var{list}; the categories of checks available are
-@samp{misc}, @samp{tree}, @samp{gc}, @samp{rtl} and @samp{gcac}. The
-default when @var{list} is not specified is @samp{misc,tree,gc}; the
-checks @samp{rtl} and @samp{gcac} are very expensive.
-
-@item --enable-nls
-@itemx --disable-nls
-The @option{--enable-nls} option enables Native Language Support (NLS),
-which lets GCC output diagnostics in languages other than American
-English. Native Language Support is enabled by default if not doing a
-canadian cross build. The @option{--disable-nls} option disables NLS@.
-
-@item --with-included-gettext
-If NLS is enabled, the @option{--with-included-gettext} option causes the build
-procedure to prefer its copy of GNU @command{gettext}.
-
-@item --with-catgets
-If NLS is enabled, and if the host lacks @code{gettext} but has the
-inferior @code{catgets} interface, the GCC build procedure normally
-ignores @code{catgets} and instead uses GCC's copy of the GNU
-@code{gettext} library. The @option{--with-catgets} option causes the
-build procedure to use the host's @code{catgets} in this situation.
-
-@item --with-libiconv-prefix=@var{dir}
-Search for libiconv header files in @file{@var{dir}/include} and
-libiconv library files in @file{@var{dir}/lib}.
-
-@item --with-system-zlib
-Use installed zlib rather than that included with GCC@. This option
-only applies if the Java front end is being built.
-
-@item --enable-obsolete
-Enable configuration for an obsoleted system. If you attempt to
-configure GCC for a system (build, host, or target) which has been
-obsoleted, and you do not specify this flag, configure will halt with an
-error message.
-
-All support for systems which have been obsoleted in one release of GCC
-is removed entirely in the next major release, unless someone steps
-forward to maintain the port.
-@end table
-
-Some options which only apply to building cross compilers:
-@table @code
-@item --with-headers=@var{dir}
-Specifies a directory
-which has target include files.
-@emph{This option is required} when building a cross
-compiler, if @file{@var{prefix}/@var{target}/sys-include} doesn't pre-exist.
-These include files will be copied into the @file{gcc} install directory.
-@command{fixincludes} will be run on these files to make them compatible with
-GCC.
-@item --with-libs=``@var{dir1} @var{dir2} @dots{} @var{dirN}''
-Specifies a list of directories which contain the target runtime
-libraries. These libraries will be copied into the @file{gcc} install
-directory.
-@item --with-newlib
-Specifies that @samp{newlib} is
-being used as the target C library. This causes @code{__eprintf} to be
-omitted from @file{libgcc.a} on the assumption that it will be provided by
-@samp{newlib}.
-@end table
-
-Note that each @option{--enable} option has a corresponding
-@option{--disable} option and that each @option{--with} option has a
-corresponding @option{--without} option.
-
-@html
-<hr />
-<p>
-@end html
-@ifhtml
-@uref{./index.html,,Return to the GCC Installation page}
-@end ifhtml
-@end ifset
-
-@c ***Building****************************************************************
-@ifnothtml
-@comment node-name, next, previous, up
-@node Building, Testing, Configuration, Installing GCC
-@end ifnothtml
-@ifset buildhtml
-@ifnothtml
-@chapter Building
-@end ifnothtml
-@cindex Installing GCC: Building
-
-Now that GCC is configured, you are ready to build the compiler and
-runtime libraries.
-
-We @strong{highly} recommend that GCC be built using GNU make;
-other versions may work, then again they might not.
-GNU make is required for compiling GNAT (the Ada compiler) and the Java
-runtime library.
-
-(For example, many broken versions of make will fail if you use the
-recommended setup where @var{objdir} is different from @var{srcdir}.
-Other broken versions may recompile parts of the compiler when
-installing the compiler.)
-
-Some commands executed when making the compiler may fail (return a
-nonzero status) and be ignored by @code{make}. These failures, which
-are often due to files that were not found, are expected, and can safely
-be ignored.
-
-It is normal to have compiler warnings when compiling certain files.
-Unless you are a GCC developer, you can generally ignore these warnings
-unless they cause compilation to fail.
-
-On certain old systems, defining certain environment variables such as
-@env{CC} can interfere with the functioning of @command{make}.
-
-If you encounter seemingly strange errors when trying to build the
-compiler in a directory other than the source directory, it could be
-because you have previously configured the compiler in the source
-directory. Make sure you have done all the necessary preparations.
-
-If you build GCC on a BSD system using a directory stored in an old System
-V file system, problems may occur in running @command{fixincludes} if the
-System V file system doesn't support symbolic links. These problems
-result in a failure to fix the declaration of @code{size_t} in
-@file{sys/types.h}. If you find that @code{size_t} is a signed type and
-that type mismatches occur, this could be the cause.
-
-The solution is not to use such a directory for building GCC@.
-
-When building from CVS or snapshots, or if you modify parser sources,
-you need the Bison parser generator installed. Any version 1.25 or
-later should work; older versions may also work. If you do not modify
-parser sources, releases contain the Bison-generated files and you do
-not need Bison installed to build them.
-
-When building from CVS or snapshots, or if you modify Texinfo
-documentation, you need version 4.1 or later of Texinfo installed if you
-want Info documentation to be regenerated. Releases contain Info
-documentation pre-built for the unmodified documentation in the release.
-
-@section Building a native compiler
-
-For a native build issue the command @samp{make bootstrap}. This
-will build the entire GCC system, which includes the following steps:
-
-@itemize @bullet
-@item
-Build host tools necessary to build the compiler such as texinfo, bison,
-gperf.
-
-@item
-Build target tools for use by the compiler such as binutils (bfd,
-binutils, gas, gprof, ld, and opcodes)
-if they have been individually linked
-or moved into the top level GCC source tree before configuring.
-
-@item
-Perform a 3-stage bootstrap of the compiler.
-
-@item
-Perform a comparison test of the stage2 and stage3 compilers.
-
-@item
-Build runtime libraries using the stage3 compiler from the previous step.
-
-@end itemize
-
-If you are short on disk space you might consider @samp{make
-bootstrap-lean} instead. This is identical to @samp{make
-bootstrap} except that object files from the stage1 and
-stage2 of the 3-stage bootstrap of the compiler are deleted as
-soon as they are no longer needed.
-
-If you want to save additional space during the bootstrap and in
-the final installation as well, you can build the compiler binaries
-without debugging information as in the following example. This will save
-roughly 40% of disk space both for the bootstrap and the final installation.
-(Libraries will still contain debugging information.)
-
-@example
- make CFLAGS='-O' LIBCFLAGS='-g -O2' \
- LIBCXXFLAGS='-g -O2 -fno-implicit-templates' bootstrap
-@end example
-
-If you wish to use non-default GCC flags when compiling the stage2 and
-stage3 compilers, set @code{BOOT_CFLAGS} on the command line when doing
-@samp{make bootstrap}. Non-default optimization flags are less well
-tested here than the default of @samp{-g -O2}, but should still work.
-In a few cases, you may find that you need to specify special flags such
-as @option{-msoft-float} here to complete the bootstrap; or, if the
-native compiler miscompiles the stage1 compiler, you may need to work
-around this, by choosing @code{BOOT_CFLAGS} to avoid the parts of the
-stage1 compiler that were miscompiled, or by using @samp{make
-bootstrap4} to increase the number of stages of bootstrap.
-
-If you used the flag @option{--enable-languages=@dots{}} to restrict
-the compilers to be built, only those you've actually enabled will be
-built. This will of course only build those runtime libraries, for
-which the particular compiler has been built. Please note,
-that re-defining @env{LANGUAGES} when calling @samp{make bootstrap}
-@strong{does not} work anymore!
-
-If the comparison of stage2 and stage3 fails, this normally indicates
-that the stage2 compiler has compiled GCC incorrectly, and is therefore
-a potentially serious bug which you should investigate and report. (On
-a few systems, meaningful comparison of object files is impossible; they
-always appear ``different''. If you encounter this problem, you will
-need to disable comparison in the @file{Makefile}.)
-
-@section Building a cross compiler
-
-We recommend reading the
-@uref{http://www.objsw.com/CrossGCC/,,crossgcc FAQ}
-for information about building cross compilers.
-
-When building a cross compiler, it is not generally possible to do a
-3-stage bootstrap of the compiler. This makes for an interesting problem
-as parts of GCC can only be built with GCC@.
-
-To build a cross compiler, we first recommend building and installing a
-native compiler. You can then use the native GCC compiler to build the
-cross compiler. The installed native compiler needs to be GCC version
-2.95 or later.
-
-Assuming you have already installed a native copy of GCC and configured
-your cross compiler, issue the command @command{make}, which performs the
-following steps:
-
-@itemize @bullet
-@item
-Build host tools necessary to build the compiler such as texinfo, bison,
-gperf.
-
-@item
-Build target tools for use by the compiler such as binutils (bfd,
-binutils, gas, gprof, ld, and opcodes)
-if they have been individually linked or moved into the top level GCC source
-tree before configuring.
-
-@item
-Build the compiler (single stage only).
-
-@item
-Build runtime libraries using the compiler from the previous step.
-@end itemize
-
-Note that if an error occurs in any step the make process will exit.
-
-@section Building in parallel
-
-If you have a multiprocessor system you can use @samp{make bootstrap
-MAKE="make -j 2" -j 2} or just @samp{make -j 2 bootstrap}
-for GNU Make 3.79 and above instead of just @samp{make bootstrap}
-when building GCC@. You can use a bigger number instead of two if
-you like. In most cases, it won't help to use a number bigger than
-the number of processors in your machine.
-
-@section Building the Ada compiler
-
-In order to build GNAT, the Ada compiler, you need a working GNAT
-compiler (GNAT version 3.13 or later, or GCC version 3.1 or later),
-since the Ada front end is written in Ada (with some
-GNAT-specific extensions), and GNU make.
-
-However, you do not need a full installation of GNAT, just the GNAT
-binary @file{gnat1}, a copy of @file{gnatbind}, and a compiler driver
-which can deal with Ada input (by invoking the @file{gnat1} binary).
-You can specify this compiler driver by setting the @env{ADAC}
-environment variable at the configure step. @command{configure} can
-detect the driver automatically if it has got a common name such as
-@command{gcc} or @command{gnatgcc}. Of course, you still need a working
-C compiler (the compiler driver can be different or not).
-@command{configure} does not test whether the GNAT installation works
-and has a sufficiently recent version; if too old a GNAT version is
-installed, the build will fail unless @option{--enable-languages} is
-used to disable building the Ada front end.
-
-Additional build tools (such as @command{gnatmake}) or a working GNAT
-run-time library installation are usually @emph{not} required. However,
-if you want to bootstrap the compiler using a minimal version of GNAT,
-you have to issue the following commands before invoking @samp{make
-bootstrap} (this assumes that you start with an unmodified and consistent
-source distribution):
-
-@example
- cd @var{srcdir}/gcc/ada
- touch treeprs.ads [es]info.h nmake.ad[bs]
-@end example
-
-At the moment, the GNAT library and several tools for GNAT are not built
-by @samp{make bootstrap}. You have to invoke
-@samp{make gnatlib_and_tools} in the @file{@var{objdir}/gcc}
-subdirectory before proceeding with the next steps.
-
-For example, you can build a native Ada compiler by issuing the
-following commands (assuming @command{make} is GNU make):
-
-@example
- cd @var{objdir}
- @var{srcdir}/configure --enable-languages=c,ada
- cd @var{srcdir}/gcc/ada
- touch treeprs.ads [es]info.h nmake.ad[bs]
- cd @var{objdir}
- make bootstrap
- cd gcc
- make gnatlib_and_tools
- cd ..
-@end example
-
-Currently, when compiling the Ada front end, you cannot use the parallel
-build feature described in the previous section.
-
-@html
-<hr />
-<p>
-@end html
-@ifhtml
-@uref{./index.html,,Return to the GCC Installation page}
-@end ifhtml
-@end ifset
-
-@c ***Testing*****************************************************************
-@ifnothtml
-@comment node-name, next, previous, up
-@node Testing, Final install, Building, Installing GCC
-@end ifnothtml
-@ifset testhtml
-@ifnothtml
-@chapter Installing GCC: Testing
-@end ifnothtml
-@cindex Testing
-@cindex Installing GCC: Testing
-@cindex Testsuite
-
-Before you install GCC, we encourage you to run the testsuites and to
-compare your results with results from a similar configuration that have
-been submitted to the
-@uref{http://gcc.gnu.org/ml/gcc-testresults/,,gcc-testresults mailing list}.
-This step is optional and may require you to download additional software,
-but it can give you confidence in your new GCC installation or point out
-problems before you install and start using your new GCC.
-
-First, you must have @uref{download.html,,downloaded the testsuites}.
-These are part of the full distribution, but if you downloaded the
-``core'' compiler plus any front ends, you must download the testsuites
-separately.
-
-Second, you must have the testing tools installed. This includes
-a @uref{http://www.gnu.org/software/dejagnu/,,current version of DejaGnu};
-dejagnu 1.3 is not sufficient.
-It also includes Tcl and Expect; the DejaGnu site has links to these.
-
-Now you may need specific preparations:
-
-@itemize @bullet
-
-@item
-The following environment variables may need to be set appropriately, as in
-the following example (which assumes that DejaGnu has been installed
-under @file{/usr/local}):
-
-@example
- TCL_LIBRARY = /usr/local/share/tcl8.0
- DEJAGNULIBS = /usr/local/share/dejagnu
-@end example
-
-On systems such as Cygwin, these paths are required to be actual
-paths, not mounts or links; presumably this is due to some lack of
-portability in the DejaGnu code.
-
-If the directories where @command{runtest} and @command{expect} were
-installed are in the @env{PATH}, it should not be necessary to set these
-environment variables.
-
-@end itemize
-
-Finally, you can run the testsuite (which may take a long time):
-@example
- cd @var{objdir}; make -k check
-@end example
-
-The testing process will try to test as many components in the GCC
-distribution as possible, including the C, C++, Objective-C and Fortran
-compilers as well as the C++ and Java runtime libraries.
-
-While running the testsuite, DejaGnu might emit messages resembling
-@samp{WARNING: Couldn't find the global config file.} or
-@samp{WARNING: Couldn't find tool init file}.
-These messages are harmless and do not affect the validity of the tests.
-
-@section How can I run the test suite on selected tests?
-
-As a first possibility to cut down the number of tests that are run it is
-possible to use @samp{make check-gcc} or @samp{make check-g++}
-in the @file{gcc} subdirectory of the object directory. To further cut down the
-tests the following is possible:
-
-@example
- make check-gcc RUNTESTFLAGS="execute.exp @var{other-options}"
-@end example
-
-This will run all @command{gcc} execute tests in the testsuite.
-
-@example
- make check-g++ RUNTESTFLAGS="old-deja.exp=9805* @var{other-options}"
-@end example
-
-This will run the @command{g++} ``old-deja'' tests in the testsuite where the filename
-matches @samp{9805*}.
-
-The @file{*.exp} files are located in the testsuite directories of the GCC
-source, the most important ones being @file{compile.exp},
-@file{execute.exp}, @file{dg.exp} and @file{old-deja.exp}.
-To get a list of the possible @file{*.exp} files, pipe the
-output of @samp{make check} into a file and look at the
-@samp{Running @dots{} .exp} lines.
-
-To run only the tests for a library, run @samp{make check} from the
-the library's testsuite in a subdirectory of the object directory:
-@file{libstdc++-v3/testsuite} or @file{libcgj/testsuite}.
-
-@section Additional testing for Java Class Libraries
-
-The @uref{http://sources.redhat.com/mauve/,,Mauve Project} provides
-a suite of tests for the Java Class Libraries. This suite can be run
-as part of libgcj testing by specifying the location of the Mauve tree
-when invoking @samp{make}, as in @samp{make MAUVEDIR=~/mauve check}.
-
-@section How to interpret test results
-
-After the testsuite has run you'll find various @file{*.sum} and @file{*.log}
-files in the testsuite subdirectories. The @file{*.log} files contain a
-detailed log of the compiler invocations and the corresponding
-results, the @file{*.sum} files summarize the results. These summaries list
-all the tests that have been run with a corresponding status code:
-
-@itemize @bullet
-@item
-PASS: the test passed as expected
-@item
-XPASS: the test unexpectedly passed
-@item
-FAIL: the test unexpectedly failed
-@item
-XFAIL: the test failed as expected
-@item
-UNSUPPORTED: the test is not supported on this platform
-@item
-ERROR: the testsuite detected an error
-@item
-WARNING: the testsuite detected a possible problem
-@end itemize
-
-It is normal for some tests to report unexpected failures. At the
-current time our testing harness does not allow fine grained control
-over whether or not a test is expected to fail. We expect to fix this
-problem in future releases.
-
-
-@section Submitting test results
-
-If you want to report the results to the GCC project, use the
-@file{contrib/test_summary} shell script. Start it in the @var{objdir} with
-
-@example
- @var{srcdir}/contrib/test_summary -p your_commentary.txt \
- -m gcc-testresults@@gcc.gnu.org |sh
-@end example
-
-This script uses the @command{Mail} program to send the results, so
-make sure it is in your @env{PATH}. The file @file{your_commentary.txt} is
-prepended to the testsuite summary and should contain any special
-remarks you have on your results or your build environment. Please
-do not edit the testsuite result block or the subject line, as these
-messages are automatically parsed and presented at the
-@uref{http://gcc.gnu.org/testresults/,,GCC testresults} web
-page. Here you can also gather information on how specific tests
-behave on different platforms and compare them with your results. A
-few failing testcases are possible even on released versions and you
-should look here first if you think your results are unreasonable.
-
-@html
-<hr />
-<p>
-@end html
-@ifhtml
-@uref{./index.html,,Return to the GCC Installation page}
-@end ifhtml
-@end ifset
-
-@c ***Final install***********************************************************
-@ifnothtml
-@comment node-name, next, previous, up
-@node Final install, , Testing, Installing GCC
-@end ifnothtml
-@ifset finalinstallhtml
-@ifnothtml
-@chapter Installing GCC: Final installation
-@end ifnothtml
-
-Now that GCC has been built (and optionally tested), you can install it with
-@example
-cd @var{objdir}; make install
-@end example
-
-We strongly recommend to install into a target directory where there is
-no previous version of GCC present.
-
-That step completes the installation of GCC; user level binaries can
-be found in @file{@var{prefix}/bin} where @var{prefix} is the value you
-specified with the @option{--prefix} to configure (or @file{/usr/local}
-by default). (If you specified @option{--bindir}, that directory will
-be used instead; otherwise, if you specified @option{--exec-prefix},
-@file{@var{exec-prefix}/bin} will be used.) Headers for the C++ and
-Java libraries are installed in @file{@var{prefix}/include}; libraries
-in @file{@var{libdir}} (normally @file{@var{prefix}/lib}); internal
-parts of the compiler in @file{@var{libdir}/gcc-lib}; documentation in
-info format in @file{@var{infodir}} (normally @file{@var{prefix}/info}).
-
-If you built a released version of GCC using @samp{make bootstrap} then please
-quickly review the build status page for your release, available from
-@uref{http://gcc.gnu.org/buildstat.html}.
-If your system is not listed for the version of GCC that you built,
-send a note to
-@email{gcc@@gcc.gnu.org} indicating
-that you successfully built and installed GCC.
-Include the following information:
-
-@itemize @bullet
-@item
-Output from running @file{@var{srcdir}/config.guess}. Do not send us
-that file itself, just the one-line output from running it.
-
-@item
-The output of @samp{gcc -v} for your newly installed gcc.
-This tells us which version of GCC you built and the options you passed to
-configure.
-
-@item
-Whether you enabled all languages or a subset of them. If you used a
-full distribution then this information is part of the configure
-options in the output of @samp{gcc -v}, but if you downloaded the
-``core'' compiler plus additional front ends then it isn't apparent
-which ones you built unless you tell us about it.
-
-@item
-If the build was for GNU/Linux, also include:
-@itemize @bullet
-@item
-The distribution name and version (e.g., Red Hat 7.1 or Debian 2.2.3);
-this information should be available from @file{/etc/issue}.
-
-@item
-The version of the Linux kernel, available from @samp{uname --version}
-or @samp{uname -a}.
-
-@item
-The version of glibc you used; for RPM-based systems like Red Hat,
-Mandrake, and SuSE type @samp{rpm -q glibc} to get the glibc version,
-and on systems like Debian and Progeny use @samp{dpkg -l libc6}.
-@end itemize
-For other systems, you can include similar information if you think it is
-relevant.
-
-@item
-Any other information that you think would be useful to people building
-GCC on the same configuration. The new entry in the build status list
-will include a link to the archived copy of your message.
-@end itemize
-
-We'd also like to know if the
-@ifnothtml
-@ref{Specific, host/target specific installation notes}
-@end ifnothtml
-@ifhtml
-@uref{specific.html,,host/target specific installation notes}
-@end ifhtml
-didn't include your host/target information or if that information is
-incomplete or out of date. Send a note to
-@email{gcc@@gcc.gnu.org} telling us how the information should be changed.
-
-If you find a bug, please report it following our
-@uref{../bugs.html,,bug reporting guidelines}.
-
-If you want to print the GCC manuals, do @samp{cd @var{objdir}; make
-dvi}. You will need to have @command{texi2dvi} (version at least 4.1)
-and @TeX{} installed. This creates a number of @file{.dvi} files in
-subdirectories of @file{@var{objdir}}; these may be converted for
-printing with programs such as @command{dvips}. You can also
-@uref{http://www.gnu.org/order/order.html,,buy printed manuals from the
-Free Software Foundation}, though such manuals may not be for the most
-recent version of GCC@.
-
-@html
-<hr />
-<p>
-@end html
-@ifhtml
-@uref{./index.html,,Return to the GCC Installation page}
-@end ifhtml
-@end ifset
-
-@c ***Binaries****************************************************************
-@ifnothtml
-@comment node-name, next, previous, up
-@node Binaries, Specific, Installing GCC, Top
-@end ifnothtml
-@ifset binarieshtml
-@ifnothtml
-@chapter Installing GCC: Binaries
-@end ifnothtml
-@cindex Binaries
-@cindex Installing GCC: Binaries
-
-We are often asked about pre-compiled versions of GCC@. While we cannot
-provide these for all platforms, below you'll find links to binaries for
-various platforms where creating them by yourself is not easy due to various
-reasons.
-
-Please note that we did not create these binaries, nor do we
-support them. If you have any problems installing them, please
-contact their makers.
-
-@itemize
-@item
-AIX:
-@itemize
-@item
-@uref{http://www.bullfreeware.com,,Bull's Freeware and Shareware Archive for AIX};
-
-@item
-@uref{http://aixpdslib.seas.ucla.edu,,UCLA Software Library for AIX}.
-@end itemize
-
-@item
-DOS---@uref{http://www.delorie.com/djgpp/,,DJGPP}.
-
-@item
-Hitachi H8/300[HS]---@uref{http://h8300-hms.sourceforge.net/,,GNU
-Development Tools for the Hitachi H8/300[HS] Series}.
-
-@item
-HP-UX:
-@itemize
-@item
-@uref{http://hpux.cae.wisc.edu/,,HP-UX Porting Center};
-
-@item
-@uref{ftp://sunsite.informatik.rwth-aachen.de/pub/packages/gcc_hpux/,,Binaries for HP-UX 11.00 at Aachen University of Technology}.
-@end itemize
-
-@item
-@uref{http://www.sco.com/skunkware/devtools/index.html#gcc,,SCO
-OpenServer/Unixware}.
-
-@item
-Sinix/Reliant Unix---@uref{ftp://ftp.siemens.de/sni/mr/pd/gnu/gcc,,Siemens}.
-
-@item
-Solaris 2 (SPARC, Intel)---@uref{http://www.sunfreeware.com/,,Sunfreeware}.
-
-@item
-SGI---@uref{http://freeware.sgi.com/,,SGI Freeware}.
-
-@item
-Windows 95, 98, and NT:
-@itemize
-@item
-The @uref{http://sources.redhat.com/cygwin/,,Cygwin} project;
-@item
-The @uref{http://www.mingw.org/,,MinGW} project.
-@end itemize
-
-@item
-@uref{ftp://ftp.thewrittenword.com/packages/free/by-name/,,The
-Written Word} offers binaries for Solaris 2.5.1, 2.6, 2.7/SPARC, 2.7/Intel,
-IRIX 6.2, 6.5, Digital UNIX 4.0D, HP-UX 10.20, and HP-UX 11.00.
-
-@end itemize
-
-In addition to those specific offerings, you can get a binary
-distribution CD-ROM from the
-@uref{http://www.fsf.org/order/order.html,,Free Software Foundation}.
-It contains binaries for a number of platforms, and
-includes not only GCC, but other stuff as well. The current CD does
-not contain the latest version of GCC, but it should allow
-bootstrapping the compiler. An updated version of that disk is in the
-works.
-
-@html
-<hr />
-<p>
-@end html
-@ifhtml
-@uref{./index.html,,Return to the GCC Installation page}
-@end ifhtml
-@end ifset
-
-@c ***Specific****************************************************************
-@ifnothtml
-@comment node-name, next, previous, up
-@node Specific, Old, Binaries, Top
-@end ifnothtml
-@ifset specifichtml
-@ifnothtml
-@chapter Host/target specific installation notes for GCC
-@end ifnothtml
-@cindex Specific
-@cindex Specific installation notes
-@cindex Target specific installation
-@cindex Host specific installation
-@cindex Target specific installation notes
-
-Please read this document carefully @emph{before} installing the
-GNU Compiler Collection on your machine.
-
-@ifhtml
-@itemize
-@item
-@uref{#1750a-*-*,,1750a-*-*}
-@item
-@uref{#a29k,,a29k}
-@item
-@uref{#a29k-*-bsd,,a29k-*-bsd}
-@item
-@uref{#alpha*-*-*,,alpha*-*-*}
-@item
-@uref{#alpha*-dec-osf*,,alpha*-dec-osf*}
-@item
-@uref{#alphaev5-cray-unicosmk*,,alphaev5-cray-unicosmk*}
-@item
-@uref{#arc-*-elf,,arc-*-elf}
-@item
-@uref{#arm-*-aout,,arm-*-aout}
-@item
-@uref{#arm-*-elf,,arm-*-elf}
-@item
-@uref{#arm*-*-linux-gnu,,arm*-*-linux-gnu}
-@item
-@uref{#arm-*-riscix,,arm-*-riscix}
-@item
-@uref{#avr,,avr}
-@item
-@uref{#c4x,,c4x}
-@item
-@uref{#dos,,DOS}
-@item
-@uref{#dsp16xx,,dsp16xx}
-@item
-@uref{#elxsi-elxsi-bsd,,elxsi-elxsi-bsd}
-@item
-@uref{#*-*-freebsd*,,*-*-freebsd*}
-@item
-@uref{#h8300-hms,,h8300-hms}
-@item
-@uref{#hppa*-hp-hpux*,,hppa*-hp-hpux*}
-@item
-@uref{#hppa*-hp-hpux9,,hppa*-hp-hpux9}
-@item
-@uref{#hppa*-hp-hpux10,,hppa*-hp-hpux10}
-@item
-@uref{#hppa*-hp-hpux11,,hppa*-hp-hpux11}
-@item
-@uref{#i370-*-*,,i370-*-*}
-@item
-@uref{#*-*-linux-gnu,,*-*-linux-gnu}
-@item
-@uref{#ix86-*-linux*oldld,,i?86-*-linux*oldld}
-@item
-@uref{#ix86-*-linux*aout,,i?86-*-linux*aout}
-@item
-@uref{#ix86-*-linux*,,i?86-*-linux*}
-@item
-@uref{#ix86-*-sco,,i?86-*-sco}
-@item
-@uref{#ix86-*-sco3.2v4,,i?86-*-sco3.2v4}
-@item
-@uref{#ix86-*-sco3.2v5*,,i?86-*-sco3.2v5*}
-@item
-@uref{#ix86-*-udk,,i?86-*-udk}
-@item
-@uref{#ix86-*-isc,,i?86-*-isc}
-@item
-@uref{#ix86-*-esix,,i?86-*-esix}
-@item
-@uref{#ix86-ibm-aix,,i?86-ibm-aix}
-@item
-@uref{#ix86-sequent-bsd,,i?86-sequent-bsd}
-@item
-@uref{#ix86-sequent-ptx1*,,i?86-sequent-ptx1*, i?86-sequent-ptx2*, i?86-sequent-sysv3*}
-@item
-@uref{#i860-intel-osf*,,i860-intel-osf*}
-@item
-@uref{#ia64-*-linux,,ia64-*-linux}
-@item
-@uref{#*-lynx-lynxos,,*-lynx-lynxos}
-@item
-@uref{#*-ibm-aix*,,*-ibm-aix*}
-@item
-@uref{#m32r-*-elf,,m32r-*-elf}
-@item
-@uref{#m68000-hp-bsd,,m68000-hp-bsd}
-@item
-@uref{#m6811-elf,,m6811-elf}
-@item
-@uref{#m6812-elf,,m6812-elf}
-@item
-@uref{#m68k-altos,,m68k-altos}
-@item
-@uref{#m68k-apple-aux,,m68k-apple-aux}
-@item
-@uref{#m68k-att-sysv,,m68k-att-sysv}
-@item
-@uref{#m68k-bull-sysv,,m68k-bull-sysv}
-@item
-@uref{#m68k-crds-unos,,m68k-crds-unos}
-@item
-@uref{#m68k-hp-hpux,,m68k-hp-hpux}
-@item
-@uref{#m68k-*-nextstep*,,m68k-*-nextstep*}
-@item
-@uref{#m68k-ncr-*,,m68k-ncr-*}
-@item
-@uref{#m68k-sun,,m68k-sun}
-@item
-@uref{#m68k-sun-sunos4.1.1,,m68k-sun-sunos4.1.1}
-@item
-@uref{#m88k-*-svr3,,m88k-*-svr3}
-@item
-@uref{#m88k-*-dgux,,m88k-*-dgux}
-@item
-@uref{#m88k-tektronix-sysv3,,m88k-tektronix-sysv3}
-@item
-@uref{#mips-*-*,,mips-*-*}
-@item
-@uref{#mips-dec-*,,mips-dec-*}
-@item
-@uref{#mips-mips-bsd,,mips-mips-bsd}
-@item
-@uref{#mips-mips-riscos*,,mips-mips-riscos*}
-@item
-@uref{#mips-sgi-irix4,,mips-sgi-irix4}
-@item
-@uref{#mips-sgi-irix5,,mips-sgi-irix5}
-@item
-@uref{#mips-sgi-irix6,,mips-sgi-irix6}
-@item
-@uref{#mips-sony-sysv,,mips-sony-sysv}
-@item
-@uref{#ns32k-encore,,ns32k-encore}
-@item
-@uref{#ns32k-*-genix,,ns32k-*-genix}
-@item
-@uref{#ns32k-sequent,,ns32k-sequent}
-@item
-@uref{#ns32k-utek,,ns32k-utek}
-@item
-@uref{#powerpc*-*-*,,powerpc*-*-*, powerpc-*-sysv4}
-@item
-@uref{#powerpc-*-darwin*,,powerpc-*-darwin*}
-@item
-@uref{#powerpc-*-elf,,powerpc-*-elf, powerpc-*-sysv4}
-@item
-@uref{#powerpc-*-linux-gnu*,,powerpc-*-linux-gnu*}
-@item
-@uref{#powerpc-*-netbsd*,,powerpc-*-netbsd*}
-@item
-@uref{#powerpc-*-eabiaix,,powerpc-*-eabiaix}
-@item
-@uref{#powerpc-*-eabisim,,powerpc-*-eabisim}
-@item
-@uref{#powerpc-*-eabi,,powerpc-*-eabi}
-@item
-@uref{#powerpcle-*-elf,,powerpcle-*-elf, powerpcle-*-sysv4}
-@item
-@uref{#powerpcle-*-eabisim,,powerpcle-*-eabisim}
-@item
-@uref{#powerpcle-*-eabi,,powerpcle-*-eabi}
-@item
-@uref{#powerpcle-*-winnt,,powerpcle-*-winnt, powerpcle-*-pe}
-@item
-@uref{#romp-*-aos,,romp-*-aos, romp-*-mach}
-@item
-@uref{#s390-*-linux*}
-@item
-@uref{#s390x-*-linux*}
-@item
-@uref{#*-*-solaris2*,,*-*-solaris2*}
-@item
-@uref{#sparc-sun-solaris2*,,sparc-sun-solaris2*}
-@item
-@uref{#sparc-sun-solaris2.7,,sparc-sun-solaris2.7}
-@item
-@uref{#sparc-sun-sunos4*,,sparc-sun-sunos4*}
-@item
-@uref{#sparc-unknown-linux-gnulibc1,,sparc-unknown-linux-gnulibc1}
-@item
-@uref{#sparc-*-linux*,,sparc-*-linux*}
-@item
-@uref{#sparc64-*-*,,sparc64-*-*}
-@item
-@uref{#sparcv9-*-solaris2*,,sparcv9-*-solaris2*}
-@item
-@uref{#*-*-sysv*,,*-*-sysv*}
-@item
-@uref{#vax-dec-ultrix,,vax-dec-ultrix}
-@item
-@uref{#we32k-*-*,,we32k-*-*}
-@item
-@uref{#xtensa-*-elf,,xtensa-*-elf}
-@item
-@uref{#xtensa-*-linux*,,xtensa-*-linux*}
-@item
-@uref{#windows,,Microsoft Windows}
-@item
-@uref{#os2,,OS/2}
-@item
-@uref{#older,,Older systems}
-@end itemize
-
-@itemize
-@item
-@uref{#elf_targets,,all ELF targets} (SVR4, Solaris 2, etc.)
-@end itemize
-@end ifhtml
-
-
-@html
-<!-- -------- host/target specific issues start here ---------------- -->
-<hr />
-@end html
-@heading @anchor{1750a-*-*}1750a-*-*
-MIL-STD-1750A processors. This target is obsoleted in GCC 3.1.
-
-The MIL-STD-1750A cross configuration produces output for
-@code{as1750}, an assembler/linker available under the GNU General Public
-License for the 1750A@. @code{as1750} can be obtained at
-@uref{ftp://ftp.fta-berlin.de/pub/crossgcc/1750gals/}.
-A similarly licensed simulator for
-the 1750A is available from same address.
-
-You should ignore a fatal error during the building of @samp{libgcc}
-(@samp{libgcc} is not yet implemented for the 1750A@.)
-
-The @code{as1750} assembler requires the file @file{ms1750.inc}, which is
-found in the directory @file{gcc/config/1750a}.
-
-GCC produced the same sections as the Fairchild F9450 C Compiler,
-namely:
-
-@table @code
-@item Normal
-The program code section.
-
-@item Static
-The read/write (RAM) data section.
-
-@item Konst
-The read-only (ROM) constants section.
-
-@item Init
-Initialization section (code to copy KREL to SREL)@.
-@end table
-
-The smallest addressable unit is 16 bits (@code{BITS_PER_UNIT} is 16). This
-means that type @code{char} is represented with a 16-bit word per character.
-The 1750A's ``Load/Store Upper/Lower Byte'' instructions are not used by
-GCC@.
-
-@html
-<hr />
-@end html
-@heading @anchor{a29k}a29k
-AMD Am29k-family processors. These are normally used in embedded
-applications. This configuration corresponds to AMD's standard calling
-sequence and binary interface and is compatible with other 29k tools.
-
-AMD has abandoned this processor. All existing a29k targets are obsoleted
-in GCC 3.1.
-
-You may need to make a variant of the file @file{a29k.h} for your
-particular configuration.
-
-@html
-<hr />
-@end html
-@heading @anchor{a29k-*-bsd}a29k-*-bsd
-AMD Am29050 used in a system running a variant of BSD Unix.
-
-@html
-<hr />
-@end html
-@heading @anchor{alpha*-*-*}alpha*-*-*
-
-This section contains general configuration information for all
-alpha-based platforms using ELF (in particular, ignore this section for
-DEC OSF/1, Digital UNIX and Tru64 UNIX)@. In addition to reading this
-section, please read all other sections that match your target.
-
-We require binutils 2.11.2 or newer.
-Previous binutils releases had a number of problems with DWARF 2
-debugging information, not the least of which is incorrect linking of
-shared libraries.
-
-@html
-<hr />
-@end html
-@heading @anchor{alpha*-dec-osf*}alpha*-dec-osf*
-Systems using processors that implement the DEC Alpha architecture and
-are running the DEC/Compaq Unix (DEC OSF/1, Digital UNIX, or Compaq
-Tru64 UNIX) operating system, for example the DEC Alpha AXP systems.
-
-Support for versions before @code{alpha*-dec-osf4} is obsoleted in GCC
-3.1. (These are the versions which identify themselves as DEC OSF/1.)
-
-In Digital Unix V4.0, virtual memory exhausted bootstrap failures
-may be fixed by configuring with @option{--with-gc=simple},
-reconfiguring Kernel Virtual Memory and Swap parameters
-per the @command{/usr/sbin/sys_check} Tuning Suggestions,
-or applying the patch in
-@uref{http://gcc.gnu.org/ml/gcc/2002-08/msg00822.html}.
-
-In Tru64 UNIX V5.1, Compaq introduced a new assembler that does not
-currently (2001-06-13) work with @command{mips-tfile}. As a workaround,
-we need to use the old assembler, invoked via the barely documented
-@option{-oldas} option. To bootstrap GCC, you either need to use the
-Compaq C Compiler:
-
-@example
- % CC=cc @var{srcdir}/configure [@var{options}] [@var{target}]
-@end example
-
-or you can use a copy of GCC 2.95.3 or higher built on Tru64 UNIX V4.0:
-
-@example
- % CC=gcc -Wa,-oldas @var{srcdir}/configure [@var{options}] [@var{target}]
-@end example
-
-As of GNU binutils 2.11.2, neither GNU @command{as} nor GNU @command{ld}
-are supported on Tru64 UNIX, so you must not configure GCC with
-@option{--with-gnu-as} or @option{--with-gnu-ld}.
-
-The @option{--enable-threads} options isn't supported yet. A patch is
-in preparation for a future release.
-
-GCC writes a @samp{.verstamp} directive to the assembler output file
-unless it is built as a cross-compiler. It gets the version to use from
-the system header file @file{/usr/include/stamp.h}. If you install a
-new version of DEC Unix, you should rebuild GCC to pick up the new version
-stamp.
-
-Note that since the Alpha is a 64-bit architecture, cross-compilers from
-32-bit machines will not generate code as efficient as that generated
-when the compiler is running on a 64-bit machine because many
-optimizations that depend on being able to represent a word on the
-target in an integral value on the host cannot be performed. Building
-cross-compilers on the Alpha for 32-bit machines has only been tested in
-a few cases and may not work properly.
-
-@code{make compare} may fail on old versions of DEC Unix unless you add
-@option{-save-temps} to @code{CFLAGS}. On these systems, the name of the
-assembler input file is stored in the object file, and that makes
-comparison fail if it differs between the @code{stage1} and
-@code{stage2} compilations. The option @option{-save-temps} forces a
-fixed name to be used for the assembler input file, instead of a
-randomly chosen name in @file{/tmp}. Do not add @option{-save-temps}
-unless the comparisons fail without that option. If you add
-@option{-save-temps}, you will have to manually delete the @samp{.i} and
-@samp{.s} files after each series of compilations.
-
-GCC now supports both the native (ECOFF) debugging format used by DBX
-and GDB and an encapsulated STABS format for use only with GDB@. See the
-discussion of the @option{--with-stabs} option of @file{configure} above
-for more information on these formats and how to select them.
-
-There is a bug in DEC's assembler that produces incorrect line numbers
-for ECOFF format when the @samp{.align} directive is used. To work
-around this problem, GCC will not emit such alignment directives
-while writing ECOFF format debugging information even if optimization is
-being performed. Unfortunately, this has the very undesirable
-side-effect that code addresses when @option{-O} is specified are
-different depending on whether or not @option{-g} is also specified.
-
-To avoid this behavior, specify @option{-gstabs+} and use GDB instead of
-DBX@. DEC is now aware of this problem with the assembler and hopes to
-provide a fix shortly.
-
-@html
-<hr />
-@end html
-@heading @anchor{alphaev5-cray-unicosmk*}alphaev5-cray-unicosmk*
-Cray T3E systems running Unicos/Mk.
-
-This port is incomplete and has many known bugs. We hope to improve the
-support for this target soon. Currently, only the C front end is supported,
-and it is not possible to build parallel applications. Cray modules are not
-supported; in particular, Craylibs are assumed to be in
-@file{/opt/ctl/craylibs/craylibs}.
-
-You absolutely @strong{must} use GNU make on this platform. Also, you
-need to tell GCC where to find the assembler and the linker. The
-simplest way to do so is by providing @option{--with-as} and
-@option{--with-ld} to @file{configure}, e.g.@:
-
-@example
- configure --with-as=/opt/ctl/bin/cam --with-ld=/opt/ctl/bin/cld \
- --enable-languages=c
-@end example
-
-The comparison test during @samp{make bootstrap} fails on Unicos/Mk
-because the assembler inserts timestamps into object files. You should
-be able to work around this by doing @samp{make all} after getting this
-failure.
-
-@html
-<hr />
-@end html
-@heading @anchor{arc-*-elf}arc-*-elf
-Argonaut ARC processor.
-This configuration is intended for embedded systems.
-
-@html
-<hr />
-@end html
-@heading @anchor{arm-*-aout}arm-*-aout
-Advanced RISC Machines ARM-family processors. These are often used in
-embedded applications. There are no standard Unix configurations.
-This configuration corresponds to the basic instruction sequences and will
-produce @file{a.out} format object modules.
-
-You may need to make a variant of the file @file{arm.h} for your particular
-configuration.
-
-@html
-<hr />
-@end html
-@heading @anchor{arm-*-elf}arm-*-elf
-This configuration is intended for embedded systems.
-
-@html
-<hr />
-@end html
-@heading @anchor{arm*-*-linux-gnu}arm*-*-linux-gnu
-
-We require GNU binutils 2.10 or newer.
-
-@html
-<hr />
-@end html
-@heading @anchor{arm-*-riscix}arm-*-riscix
-The ARM2 or ARM3 processor running RISC iX, Acorn's port of BSD Unix.
-This configuration is obsoleted in GCC 3.1.
-
-If you are running a version of RISC iX prior to 1.2 then you must
-specify the version number during configuration. Note that the
-assembler shipped with RISC iX does not support stabs debugging
-information; a new version of the assembler, with stabs support
-included, is now available from Acorn and via ftp
-@uref{ftp://ftp.acorn.com/pub/riscix/as+xterm.tar.Z}. To enable stabs
-debugging, pass @option{--with-gnu-as} to configure.
-
-You will need to install GNU @command{sed} before you can run configure.
-
-@html
-<hr />
-@end html
-@heading @anchor{avr}avr
-
-ATMEL AVR-family micro controllers. These are used in embedded
-applications. There are no standard Unix configurations.
-@ifnothtml
-@xref{AVR Options,, AVR Options, gcc, Using and Porting the GNU Compiler
-Collection (GCC)},
-@end ifnothtml
-@ifhtml
-See ``AVR Options'' in the main manual
-@end ifhtml
-for the list of supported MCU types.
-
-Use @samp{configure --target=avr --enable-languages="c"} to configure GCC@.
-
-Further installation notes and other useful information about AVR tools
-can also be obtained from:
-
-@itemize @bullet
-@item
-@uref{http://home.overta.ru/users/denisc,,http://home.overta.ru/users/denisc}
-@item
-@uref{http://www.amelek.gda.pl/avr,,http://www.amelek.gda.pl/avr}
-@end itemize
-
-We @emph{strongly} recommend using binutils 2.11 or newer.
-
-The following error:
-@example
- Error: register required
-@end example
-
-indicates that you should upgrade to a newer version of the binutils.
-
-@html
-<hr />
-@end html
-@heading @anchor{c4x}c4x
-
-Texas Instruments TMS320C3x and TMS320C4x Floating Point Digital Signal
-Processors. These are used in embedded applications. There are no
-standard Unix configurations.
-@ifnothtml
-@xref{TMS320C3x/C4x Options,, TMS320C3x/C4x Options, gcc, Using and
-Porting the GNU Compiler Collection (GCC)},
-@end ifnothtml
-@ifhtml
-See ``TMS320C3x/C4x Options'' in the main manual
-@end ifhtml
-for the list of supported MCU types.
-
-GCC can be configured as a cross compiler for both the C3x and C4x
-architectures on the same system. Use @samp{configure --target=c4x
---enable-languages="c,c++"} to configure.
-
-
-Further installation notes and other useful information about C4x tools
-can also be obtained from:
-
-@itemize @bullet
-@item
-@uref{http://www.elec.canterbury.ac.nz/c4x/,,http://www.elec.canterbury.ac.nz/c4x/}
-@end itemize
-
-@html
-<hr />
-@end html
-@heading @anchor{cris}CRIS
-
-CRIS is the CPU architecture in Axis Communications ETRAX system-on-a-chip
-series. These are used in embedded applications.
-
-@ifnothtml
-@xref{CRIS Options,, CRIS Options, gcc, Using and Porting the GNU Compiler
-Collection (GCC)},
-@end ifnothtml
-@ifhtml
-See ``CRIS Options'' in the main manual
-@end ifhtml
-for a list of CRIS-specific options.
-
-There are a few different CRIS targets:
-@table @code
-@item cris-axis-aout
-Old target. Includes a multilib for the @samp{elinux} a.out-based
-target. No multilibs for newer architecture variants.
-@item cris-axis-elf
-Mainly for monolithic embedded systems. Includes a multilib for the
-@samp{v10} core used in @samp{ETRAX 100 LX}.
-@item cris-axis-linux-gnu
-A GNU/Linux port for the CRIS architecture, currently targeting
-@samp{ETRAX 100 LX} by default.
-@end table
-
-For @code{cris-axis-aout} and @code{cris-axis-elf} you need binutils 2.11
-or newer. For @code{cris-axis-linux-gnu} you need binutils 2.12 or newer.
-
-Pre-packaged tools can be obtained from
-@uref{ftp://ftp.axis.com/pub/axis/tools/cris/compiler-kit/}. More
-information about this platform is available at
-@uref{http://developer.axis.com/}.
-
-@html
-<hr />
-@end html
-@heading @anchor{dos}DOS
-
-Please have a look at our @uref{binaries.html,,binaries page}.
-
-You cannot install GCC by itself on MSDOS; it will not compile under
-any MSDOS compiler except itself. You need to get the complete
-compilation package DJGPP, which includes binaries as well as sources,
-and includes all the necessary compilation tools and libraries.
-
-@html
-<hr />
-@end html
-@heading @anchor{dsp16xx}dsp16xx
-A port to the AT&T DSP1610 family of processors.
-
-@html
-<hr />
-@end html
-@heading @anchor{*-*-freebsd*}*-*-freebsd*
-
-The version of binutils installed in @file{/usr/bin} is known to work unless
-otherwise specified in any per-architecture notes. However, binutils
-2.12.1 or greater is known to improve overall testsuite results.
-
-For FreeBSD 1, FreeBSD 2 or any mutant a.out versions of FreeBSD 3: All
-configuration support and files as shipped with GCC 2.95 are still in
-place. FreeBSD 2.2.7 has been known to bootstrap completely; however,
-it is unknown which version of binutils was used (it is assumed that it
-was the system copy in @file{/usr/bin}) and C++ EH failures were noted.
-
-Support for FreeBSD 1 is obsoleted in GCC 3.1.
-
-For FreeBSD using the ELF file format: DWARF 2 debugging is now the
-default for all CPU architectures. It had been the default on
-FreeBSD/alpha since its inception. You may use @option{-gstabs} instead
-of @option{-g}, if you really want the old debugging format. There are
-no known issues with mixing object files and libraries with different
-debugging formats. Otherwise, this release of GCC should now match more
-of the configuration used in the stock FreeBSD configuration of GCC. In
-particular, @option{--enable-threads} is now configured by default.
-However, as a general user, do not attempt to replace the system
-compiler with this release. Known to bootstrap and check with good
-results on FreeBSD 3.0, 3.4, 4.0, 4.2, 4.3, 4.4, 4.5-STABLE and 5-CURRENT@.
-
-In principle, @option{--enable-threads} is now compatible with
-@option{--enable-libgcj} on FreeBSD@. However, it has only been built
-and tested on @samp{i386-*-freebsd4.5} and @samp{alpha-*-freebsd5.0}.
-The static
-library may be incorrectly built (symbols are missing at link time).
-There is a rare timing-based startup hang (probably involves an
-assupmtion about the thread library). Multi-threaded boehm-gc (required for
-libjava) exposes severe threaded signal-handling bugs on FreeBSD before
-4.5-RELEASE. The alpha port may not fully bootstrap without some manual
-intervention: @command{gcjh} will crash with a floating-point exception while
-generating @file{java/lang/Double.h} (just copy the version built on
-@samp{i386-*-freebsd*} and rerun the top-level @command{gmake} with no
-arguments and it
-should properly complete the bootstrap). Other CPU architectures
-supported by FreeBSD will require additional configuration tuning in, at
-the very least, both boehm-gc and libffi.
-
-Shared @file{libgcc_s.so} is now built and installed by default.
-
-@html
-<hr />
-@end html
-@heading @anchor{elxsi-elxsi-bsd}elxsi-elxsi-bsd
-The Elxsi's C compiler has known limitations that prevent it from
-compiling GCC@. Please contact @email{mrs@@wrs.com} for more details.
-
-Support for this processor is obsoleted in GCC 3.1.
-
-@html
-<hr />
-@end html
-@heading @anchor{h8300-hms}h8300-hms
-Hitachi H8/300 series of processors.
-
-Please have a look at our @uref{binaries.html,,binaries page}.
-
-The calling convention and structure layout has changed in release 2.6.
-All code must be recompiled. The calling convention now passes the
-first three arguments in function calls in registers. Structures are no
-longer a multiple of 2 bytes.
-
-@html
-<hr />
-@end html
-@heading @anchor{hppa*-hp-hpux*}hppa*-hp-hpux*
-
-We @emph{highly} recommend using gas/binutils 2.8 or newer on all hppa
-platforms; you may encounter a variety of problems when using the HP
-assembler. The HP assembler does not work with the @samp{hppa64-hp-hpux11*}
-port.
-
-Specifically, @option{-g} does not work on HP-UX (since that system
-uses a peculiar debugging format which GCC does not know about), unless you
-use GAS and GDB and configure GCC with the
-@uref{./configure.html#with-gnu-as,,@option{--with-gnu-as}} and
-@option{--with-as=@dots{}} options.
-
-If you wish to use the pa-risc 2.0 architecture support with a 32-bit
-runtime, you must use either the HP assembler, gas/binutils 2.11 or newer,
-or a recent
-@uref{ftp://sources.redhat.com/pub/binutils/snapshots,,snapshot of gas}.
-
-More specific information to @samp{hppa*-hp-hpux*} targets follows.
-
-@html
-<hr />
-@end html
-@heading @anchor{hppa*-hp-hpux9}hppa*-hp-hpux9
-
-The HP assembler has major problems on this platform. We've tried to work
-around the worst of the problems. However, those workarounds may be causing
-linker crashes in some circumstances; the workarounds also probably prevent
-shared libraries from working. Use the GNU assembler to avoid these problems.
-
-
-The configuration scripts for GCC will also trigger a bug in the hpux9
-shell. To avoid this problem set @env{CONFIG_SHELL} to @file{/bin/ksh}
-and @env{SHELL} to @file{/bin/ksh} in your environment.
-
-
-@html
-<hr />
-@end html
-@heading @anchor{hppa*-hp-hpux10}hppa*-hp-hpux10
-
-For hpux10.20, we @emph{highly} recommend you pick up the latest sed patch
-@code{PHCO_19798} from HP@. HP has two sites which provide patches free of
-charge:
-
-@itemize @bullet
-@item
-@html
-<a href="http://us-support.external.hp.com">US, Canada, Asia-Pacific, and
-Latin-America</a>
-@end html
-@ifnothtml
-@uref{http://us-support.external.hp.com,,}US, Canada, Asia-Pacific, and
-Latin-America
-@end ifnothtml
-@item
-@uref{http://europe-support.external.hp.com,,Europe}
-@end itemize
-
-The HP assembler on these systems is much better than the hpux9 assembler,
-but still has some problems. Most notably the assembler inserts timestamps
-into each object file it creates, causing the 3-stage comparison test to fail
-during a @samp{make bootstrap}. You should be able to continue by
-saying @samp{make all} after getting the failure from @samp{make
-bootstrap}.
-
-
-@html
-<hr />
-@end html
-@heading @anchor{hppa*-hp-hpux11}hppa*-hp-hpux11
-
-GCC 3.0 and up support HP-UX 11. On 64-bit capable systems, there
-are two distinct ports. The @samp{hppa2.0w-hp-hpux11*} port generates
-code for the 32-bit pa-risc runtime architecture. It uses the HP
-linker and is currently the default selected by config.guess. The
-optional @samp{hppa64-hp-hpux11*} port generates 64-bit code for the
-pa-risc 2.0 architecture. It must be explicitly selected using the
-@samp{--host=hppa64-hp-hpux11*} configure option. Different prefixes
-must be used if both ports are to be installed on the same system.
-
-You must use GNU binutils 2.11 or above with the 32-bit port. Thread
-support is not currently implemented, so @option{--enable-threads} does
-not work. See:
-
-@itemize
-@item @uref{http://gcc.gnu.org/ml/gcc-prs/2002-01/msg00551.html}
-@item @uref{http://gcc.gnu.org/ml/gcc-bugs/2002-01/msg00663.html}.
-@end itemize
-
-GCC 2.95.x is not supported under HP-UX 11 and cannot be used to
-compile GCC 3.0 and up. Refer to @uref{binaries.html,,binaries} for
-information about obtaining precompiled GCC binaries for HP-UX.
-
-GNU binutils 2.13 or later is recommended with the 64-bit port.
-The HP assembler is not supported. It is @emph{highly} recommended
-that the GNU linker be used as well. Either binutils must be built
-prior to gcc, or a binary distribution of gcc or binutils must be
-obtained for the initial builds. When starting with a HP compiler,
-it is preferable to use the ANSI compiler as the bundled compiler
-only supports traditional C. Bootstrapping with the bundled compiler
-is tested infrequently and problems often arise because of the subtle
-differences in semantics between traditional and ISO C. There also
-have been problems reported with various binary distributions. This
-port still is undergoing significant development.
-
-@html
-<hr />
-@end html
-@heading @anchor{i370-*-*}i370-*-*
-This port is very preliminary and has many known bugs. We hope to
-have a higher-quality port for this machine soon.
-
-@html
-<hr />
-@end html
-@heading @anchor{*-*-linux-gnu}*-*-linux-gnu
-
-If you use glibc 2.2 (or 2.1.9x), GCC 2.95.2 won't install
-out-of-the-box. You'll get compile errors while building @samp{libstdc++}.
-The patch @uref{glibc-2.2.patch,,glibc-2.2.patch}, that is to be
-applied in the GCC source tree, fixes the compatibility problems.
-
-@html
-@end html
-
-@html
-<p>
-@end html
-
-Currently Glibc 2.2.3 (and older releases) and GCC 3.0 are out of sync
-since the latest exception handling changes for GCC@. Compiling glibc
-with GCC 3.0 will give a binary incompatible glibc and therefore cause
-lots of problems and might make your system completly unusable. This
-will definitly need fixes in glibc but might also need fixes in GCC@. We
-strongly advise to wait for glibc 2.2.4 and to read the release notes of
-glibc 2.2.4 whether patches for GCC 3.0 are needed. You can use glibc
-2.2.3 with GCC 3.0, just do not try to recompile it.
-
-@html
-<hr />
-@end html
-@heading @anchor{ix86-*-linux*oldld}i?86-*-linux*oldld
-Use this configuration to generate @file{a.out} binaries on Linux-based
-GNU systems if you do not have gas/binutils version 2.5.2 or later
-installed.
-
-This configuration is obsoleted in GCC 3.1.
-
-@html
-<hr />
-@end html
-@heading @anchor{ix86-*-linux*aout}i?86-*-linux*aout
-Use this configuration to generate @file{a.out} binaries on Linux-based
-GNU systems. This configuration is being superseded. You must use
-gas/binutils version 2.5.2 or later.
-
-@html
-<hr />
-@end html
-@heading @anchor{ix86-*-linux*}i?86-*-linux*
-
-You will need binutils 2.9.1.0.15 or newer for exception handling to work.
-
-If you receive Signal 11 errors when building on GNU/Linux, then it is
-possible you have a hardware problem. Further information on this can be
-found on @uref{http://www.bitwizard.nl/sig11/,,www.bitwizard.nl}.
-
-@html
-<hr />
-@end html
-@heading @anchor{ix86-*-sco}i?86-*-sco
-Compilation with RCC is recommended. Also, it may be a good idea to
-link with GNU malloc instead of the malloc that comes with the system.
-
-@html
-<hr />
-@end html
-@heading @anchor{ix86-*-sco3.2v4}i?86-*-sco3.2v4
-Use this configuration for SCO release 3.2 version 4.
-
-@html
-<hr />
-@end html
-@heading @anchor{ix86-*-sco3.2v5*}i?86-*-sco3.2v5*
-Use this for the SCO OpenServer Release 5 family of operating systems.
-
-Unlike earlier versions of GCC, the ability to generate COFF with this
-target is no longer provided.
-
-Earlier versions of GCC emitted DWARF 1 when generating ELF to allow
-the system debugger to be used. That support was too burdensome to
-maintain. GCC now emits only DWARF 2 for this target. This means you
-may use either the UDK debugger or GDB to debug programs built by this
-version of GCC@.
-
-Use of the @option{-march=pentiumpro} flag can result in
-unrecognized opcodes when using the native assembler on OS versions before
-5.0.6. (Support for P6 opcodes was added to the native ELF assembler in
-that version.) While it's rather rare to see these emitted by GCC yet,
-errors of the basic form:
-
-@example
- /usr/tmp/ccaNlqBc.s:22:unknown instruction: fcomip
- /usr/tmp/ccaNlqBc.s:50:unknown instruction: fucomip
-@end example
-
-are symptoms of this problem. You may work around this by not
-building affected files with that flag, by using the GNU assembler, or
-by using the assembler provided with the current version of the OS@.
-Users of GNU assembler should see the note below for hazards on doing
-so.
-
-The native SCO assembler that is provided with the OS at no
-charge is normally required. If, however, you must be able to use
-the GNU assembler (perhaps you're compiling code with asms that
-require GAS syntax) you may configure this package using the flags
-@uref{./configure.html#with-gnu-as,,@option{--with-gnu-as}}. You must
-use a recent version of GNU binutils; versions past 2.9.1 seem to work
-well.
-
-In general, the @option{--with-gnu-as} option isn't as well tested
-as the native assembler.
-
-Look in @file{gcc/config/i386/sco5.h} (search for ``messy'') for
-additional OpenServer-specific flags.
-
-Systems based on OpenServer before 5.0.4 (@samp{uname -X}
-will tell you what you're running) require TLS597 from
-@uref{ftp://ftp.sco.com/TLS/,,ftp://ftp.sco.com/TLS/}
-for C++ constructors and destructors to work right.
-
-The system linker in (at least) 5.0.4 and 5.0.5 will sometimes
-do the wrong thing for a construct that GCC will emit for PIC
-code. This can be seen as execution testsuite failures when using
-@option{-fPIC} on @file{921215-1.c}, @file{931002-1.c}, @file{nestfunc-1.c}, and @file{gcov-1.c}.
-For 5.0.5, an updated linker that will cure this problem is
-available. You must install both
-@uref{ftp://ftp.sco.com/Supplements/rs505a/,,ftp://ftp.sco.com/Supplements/rs505a/}
-and @uref{ftp://ftp.sco.com/SLS/,,OSS499A}.
-
-The dynamic linker in OpenServer 5.0.5 (earlier versions may show
-the same problem) aborts on certain G77-compiled programs. It's particularly
-likely to be triggered by building Fortran code with the @option{-fPIC} flag.
-Although it's conceivable that the error could be triggered by other
-code, only G77-compiled code has been observed to cause this abort.
-If you are getting core dumps immediately upon execution of your
-G77 program---and especially if it's compiled with @option{-fPIC}---try applying
-@uref{sco_osr5_g77.patch,,@file{sco_osr5_g77.patch}} to your @samp{libf2c} and
-rebuilding GCC@.
-Affected faults, when analyzed in a debugger, will show a stack
-backtrace with a fault occurring in @code{rtld()} and the program
-running as @file{/usr/lib/ld.so.1}. This problem has been reported to SCO
-engineering and will hopefully be addressed in later releases.
-
-
-@html
-<hr />
-@end html
-@heading @anchor{ix86-*-udk}i?86-*-udk
-
-This target emulates the SCO Universal Development Kit and requires that
-package be installed. (If it is installed, you will have a
-@file{/udk/usr/ccs/bin/cc} file present.) It's very much like the
-@samp{i?86-*-unixware7*} target
-but is meant to be used when hosting on a system where UDK isn't the
-default compiler such as OpenServer 5 or Unixware 2. This target will
-generate binaries that will run on OpenServer, Unixware 2, or Unixware 7,
-with the same warnings and caveats as the SCO UDK@.
-
-This target is a little tricky to build because we have to distinguish
-it from the native tools (so it gets headers, startups, and libraries
-from the right place) while making the tools not think we're actually
-building a cross compiler. The easiest way to do this is with a configure
-command like this:
-
-@example
- CC=/udk/usr/ccs/bin/cc @var{/your/path/to}/gcc/configure \
- --host=i686-pc-udk --target=i686-pc-udk --program-prefix=udk-
-@end example
-
-@emph{You should substitute @samp{i686} in the above command with the appropriate
-processor for your host.}
-
-After the usual @samp{make bootstrap} and
-@samp{make install}, you can then access the UDK-targeted GCC
-tools by adding @command{udk-} before the commonly known name. For
-example, to invoke the C compiler, you would use @command{udk-gcc}.
-They will coexist peacefully with any native-target GCC tools you may
-have installed.
-
-
-@html
-<hr />
-@end html
-@heading @anchor{ix86-*-isc}i?86-*-isc
-This configuration is obsoleted in GCC 3.1.
-
-It may be a good idea to link with GNU malloc instead of the malloc that
-comes with the system.
-
-In ISC version 4.1, @command{sed} core dumps when building
-@file{deduced.h}. Use the version of @command{sed} from version 4.0.
-
-@html
-<hr />
-@end html
-@heading @anchor{ix86-ibm-aix}i?86-ibm-aix
-This configuration is obsoleted in GCC 3.1.
-
-You need to use GAS version 2.1 or later, and LD from
-GNU binutils version 2.2 or later.
-
-@html
-<hr />
-@end html
-@heading @anchor{ix86-sequent-bsd}i?86-sequent-bsd
-This configuration is obsoleted in GCC 3.1.
-
-Go to the Berkeley universe before compiling.
-
-@html
-<hr />
-@end html
-@heading @anchor{ix86-sequent-ptx1*}i?86-sequent-ptx1*, i?86-sequent-ptx2*, i?86-sequent-sysv3*
-This configuration is obsoleted in GCC 3.1.
-
-You must install GNU @command{sed} before running @command{configure}.
-
-The @code{fixproto} shell script may trigger a bug in the system shell.
-If you encounter this problem, upgrade your operating system or
-use @command{bash} (the GNU shell) to run @code{fixproto}.
-
-@html
-<hr />
-@end html
-@heading @anchor{i860-intel-osf*}i860-intel-osf*
-All support for the i860 processor is obsoleted in GCC 3.1.
-
-On the Intel Paragon (an i860 machine), if you are using operating
-system version 1.0, you will get warnings or errors about redefinition
-of @code{va_arg} when you build GCC@.
-
-If this happens, then you need to link most programs with the library
-@file{iclib.a}. You must also modify @file{stdio.h} as follows: before
-the lines
-
-@example
-#if defined(__i860__) && !defined(_VA_LIST)
-#include <va_list.h>
-@end example
-
-@noindent
-insert the line
-
-@example
-#if __PGC__
-@end example
-
-@noindent
-and after the lines
-
-@example
-extern int vprintf(const char *, va_list );
-extern int vsprintf(char *, const char *, va_list );
-#endif
-@end example
-
-@noindent
-insert the line
-
-@example
-#endif /* __PGC__ */
-@end example
-
-These problems don't exist in operating system version 1.1.
-
-@html
-<hr />
-@end html
-@heading @anchor{ia64-*-linux}ia64-*-linux
-IA-64 processor (also known as IPF, or Itanium Processor Family)
-running GNU/Linux.
-
-The toolchain is not completely finished, so requirements will continue
-to change.
-GCC 3.0.1 and later require glibc 2.2.4.
-GCC 3.0.2 requires binutils from 2001-09-05 or later.
-GCC 3.0.1 requires binutils 2.11.1 or later.
-
-None of the following versions of GCC has an ABI that is compatible
-with any of the other versions in this list, with the exception that
-Red Hat 2.96 and Trillian 000171 are compatible with each other:
-3.0.2, 3.0.1, 3.0, Red Hat 2.96, and Trillian 000717.
-This primarily affects C++ programs and programs that create shared libraries.
-Because of these ABI incompatibilities, GCC 3.0.2 is not recommended for
-user programs on GNU/Linux systems built using earlier compiler releases.
-GCC 3.0.2 is recommended for compiling linux, the kernel.
-GCC 3.0.2 is believed to be fully ABI compliant, and hence no more major
-ABI changes are expected.
-
-@html
-<hr />
-@end html
-@heading @anchor{*-lynx-lynxos}*-lynx-lynxos
-LynxOS 2.2 and earlier comes with GCC 1.x already installed as
-@file{/bin/gcc}. You should compile with this instead of @file{/bin/cc}.
-You can tell GCC to use the GNU assembler and linker, by specifying
-@samp{--with-gnu-as --with-gnu-ld} when configuring. These will produce
-COFF format object files and executables; otherwise GCC will use the
-installed tools, which produce @file{a.out} format executables.
-
-@html
-<hr />
-<!-- rs6000-ibm-aix*, powerpc-ibm-aix* -->
-@end html
-@heading @anchor{*-ibm-aix*}*-ibm-aix*
-
-AIX Make frequently has problems with GCC makefiles. GNU Make 3.76 or
-newer is recommended to build on this platform.
-
-Errors involving @code{alloca} when building GCC generally are due
-to an incorrect definition of @code{CC} in the Makefile or mixing files
-compiled with the native C compiler and GCC@. During the stage1 phase of
-the build, the native AIX compiler @strong{must} be invoked as @command{cc}
-(not @command{xlc}). Once @command{configure} has been informed of
-@command{xlc}, one needs to use @samp{make distclean} to remove the
-configure cache files and ensure that @env{CC} environment variable
-does not provide a definition that will confuse @command{configure}.
-If this error occurs during stage2 or later, then the problem most likely
-is the version of Make (see above).
-
-The GNU Assembler incorrectly reports that it supports WEAK symbols on
-AIX which causes GCC to try to utilize weak symbol functionality which
-is not really supported on the platform. The native @command{as} and
-@command{ld} still are recommended. The native AIX tools do
-interoperate with GCC@.
-
-Building @file{libstdc++.a} requires a fix for a AIX Assembler bug
-APAR IY26685 (AIX 4.3) or APAR IY25528 (AIX 5.1).
-
-@samp{libstdc++} in GCC 3.2 increments the major version number of the
-shared object and GCC installation places the @file{libstdc++.a}
-shared library in a common location which will overwrite the GCC 3.1
-version of the shared library. Applications either need to be
-re-linked against the new shared library or the GCC 3.1 version of the
-@samp{libstdc++} shared object needs to be available to the AIX
-runtime loader. The GCC 3.1 @samp{libstdc++.so.4} shared object can
-be installed for runtime dynamic loading using the following steps to
-set the @samp{F_LOADONLY} flag in the shared object for @emph{each}
-multilib @file{libstdc++.a} installed:
-
-Extract the shared object from each the GCC 3.1 @file{libstdc++.a}
-archive:
-@example
- % ar -x libstdc++.a libstdc++.so.4
-@end example
-
-Enable the @samp{F_LOADONLY} flag so that the shared object will be
-available for runtime dynamic loading, but not linking:
-@example
- % strip -e libstdc++.so.4
-@end example
-
-Archive the runtime-only shared object in the GCC 3.2
-@file{libstdc++.a} archive:
-@example
- % ar -q libstdc++.a libstdc++.so.4
-@end example
-
-Linking executables and shared libraries may produce warnings of
-duplicate symbols. The assembly files generated by GCC for AIX always
-have included multiple symbol definitions for certain global variable
-and function declarations in the original program. The warnings should
-not prevent the linker from producing a correct library or runnable
-executable.
-
-AIX 4.3 utilizes a ``large format'' archive to support both 32-bit and
-64-bit object modules. The routines provided in AIX 4.3.0 and AIX 4.3.1
-to parse archive libraries did not handle the new format correctly.
-These routines are used by GCC and result in error messages during
-linking such as ``not a COFF file''. The version of the routines shipped
-with AIX 4.3.1 should work for a 32-bit environment. The @option{-g}
-option of the archive command may be used to create archives of 32-bit
-objects using the original ``small format''. A correct version of the
-routines is shipped with AIX 4.3.2 and above.
-
-Some versions of the AIX binder (linker) can fail with a relocation
-overflow severe error when the @option{-bbigtoc} option is used to link
-GCC-produced object files into an executable that overflows the TOC@. A fix
-for APAR IX75823 (OVERFLOW DURING LINK WHEN USING GCC AND -BBIGTOC) is
-available from IBM Customer Support and from its
-@uref{http://techsupport.services.ibm.com/,,techsupport.services.ibm.com}
-website as PTF U455193.
-
-The AIX 4.3.2.1 linker (bos.rte.bind_cmds Level 4.3.2.1) will dump core
-with a segmentation fault when invoked by any version of GCC@. A fix for
-APAR IX87327 is available from IBM Customer Support and from its
-@uref{http://techsupport.services.ibm.com/,,techsupport.services.ibm.com}
-website as PTF U461879. This fix is incorporated in AIX 4.3.3 and above.
-
-The initial assembler shipped with AIX 4.3.0 generates incorrect object
-files. A fix for APAR IX74254 (64BIT DISASSEMBLED OUTPUT FROM COMPILER FAILS
-TO ASSEMBLE/BIND) is available from IBM Customer Support and from its
-@uref{http://techsupport.services.ibm.com/,,techsupport.services.ibm.com}
-website as PTF U453956. This fix is incorporated in AIX 4.3.1 and above.
-
-AIX provides National Language Support (NLS)@. Compilers and assemblers
-use NLS to support locale-specific representations of various data
-formats including floating-point numbers (e.g., @samp{.} vs @samp{,} for
-separating decimal fractions). There have been problems reported where
-GCC does not produce the same floating-point formats that the assembler
-expects. If one encounters this problem, set the @env{LANG}
-environment variable to @samp{C} or @samp{En_US}.
-
-By default, GCC for AIX 4.1 and above produces code that can be used on
-both Power or PowerPC processors.
-
-A default can be specified with the @option{-mcpu=@var{cpu_type}}
-switch and using the configure option @option{--with-cpu-@var{cpu_type}}.
-
-@html
-<hr />
-@end html
-@heading @anchor{m32r-*-elf}m32r-*-elf
-Mitsubishi M32R processor.
-This configuration is intended for embedded systems.
-
-@html
-<hr />
-@end html
-@heading @anchor{m68000-hp-bsd}m68000-hp-bsd
-HP 9000 series 200 running BSD@. Note that the C compiler that comes
-with this system cannot compile GCC; contact @email{law@@cygnus.com}
-to get binaries of GCC for bootstrapping.
-
-@html
-<hr />
-@end html
-@heading @anchor{m6811-elf}m6811-elf
-Motorola 68HC11 family micro controllers. These are used in embedded
-applications. There are no standard Unix configurations.
-
-@html
-<hr />
-@end html
-@heading @anchor{m6812-elf}m6812-elf
-Motorola 68HC12 family micro controllers. These are used in embedded
-applications. There are no standard Unix configurations.
-
-@html
-<hr />
-@end html
-@heading @anchor{m68k-altos}m68k-altos
-Altos 3068. This configuration is obsoleted in GCC 3.1.
-
-You must use the GNU assembler, linker and debugger.
-Also, you must fix a kernel bug.
-
-@html
-<hr />
-@end html
-@heading @anchor{m68k-apple-aux}m68k-apple-aux
-Apple Macintosh running A/UX@.
-This configuration is obsoleted in GCC 3.1.
-
-You may configure GCC to use either the system assembler and
-linker or the GNU assembler and linker. You should use the GNU configuration
-if you can, especially if you also want to use G++. You enable
-that configuration with the @option{--with-gnu-as} and @option{--with-gnu-ld}
-options to @code{configure}.
-
-Note the C compiler that comes
-with this system cannot compile GCC@. You can find binaries of GCC
-for bootstrapping on @code{jagubox.gsfc.nasa.gov}.
-You will also a patched version of @file{/bin/ld} there that
-raises some of the arbitrary limits found in the original.
-
-@html
-<hr />
-@end html
-@heading @anchor{m68k-att-sysv}m68k-att-sysv
-AT&T 3b1, a.k.a.@: 7300 PC@. This version of GCC cannot
-be compiled with the system C compiler, which is too buggy.
-You will need to get a previous version of GCC and use it to
-bootstrap. Binaries are available from the OSU-CIS archive, at
-@uref{ftp://archive.cis.ohio-state.edu/pub/att7300/}.
-
-@html
-<hr />
-@end html
-@heading @anchor{m68k-bull-sysv}m68k-bull-sysv
-Bull DPX/2 series 200 and 300 with BOS-2.00.45 up to BOS-2.01.
-This configuration is obsoleted in GCC 3.1.
-
-GCC works
-either with native assembler or GNU assembler. You can use
-GNU assembler with native COFF generation by providing @option{--with-gnu-as} to
-the configure script or use GNU assembler with stabs-in-COFF encapsulation
-by providing @samp{--with-gnu-as --stabs}. For any problem with the native
-assembler or for availability of the DPX/2 port of GAS, contact
-@email{F.Pierresteguy@@frcl.bull.fr}.
-
-@html
-<hr />
-@end html
-@heading @anchor{m68k-crds-unos}m68k-crds-unos
-Use @samp{configure unos} for building on Unos.
-
-The Unos assembler is named @code{casm} instead of @code{as}. For some
-strange reason linking @file{/bin/as} to @file{/bin/casm} changes the
-behavior, and does not work. So, when installing GCC, you should
-install the following script as @file{as} in the subdirectory where
-the passes of GCC are installed:
-
-@example
-#!/bin/sh
-casm $*
-@end example
-
-The default Unos library is named @file{libunos.a} instead of
-@file{libc.a}. To allow GCC to function, either change all
-references to @option{-lc} in @file{gcc.c} to @option{-lunos} or link
-@file{/lib/libc.a} to @file{/lib/libunos.a}.
-
-@cindex @code{alloca}, for Unos
-When compiling GCC with the standard compiler, to overcome bugs in
-the support of @code{alloca}, do not use @option{-O} when making stage 2.
-Then use the stage 2 compiler with @option{-O} to make the stage 3
-compiler. This compiler will have the same characteristics as the usual
-stage 2 compiler on other systems. Use it to make a stage 4 compiler
-and compare that with stage 3 to verify proper compilation.
-
-(Perhaps simply defining @code{ALLOCA} in @file{x-crds} as described in
-the comments there will make the above paragraph superfluous. Please
-inform us of whether this works.)
-
-Unos uses memory segmentation instead of demand paging, so you will need
-a lot of memory. 5 Mb is barely enough if no other tasks are running.
-If linking @file{cc1} fails, try putting the object files into a library
-and linking from that library.
-
-@html
-<hr />
-@end html
-@heading @anchor{m68k-hp-hpux}m68k-hp-hpux
-HP 9000 series 300 or 400 running HP-UX@. HP-UX version 8.0 has a bug in
-the assembler that prevents compilation of GCC@. This
-bug manifests itself during the first stage of compilation, while
-building @file{libgcc2.a}:
-
-@smallexample
-_floatdisf
-cc1: warning: `-g' option not supported on this version of GCC
-cc1: warning: `-g1' option not supported on this version of GCC
-./xgcc: Internal compiler error: program as got fatal signal 11
-@end smallexample
-
-A patched version of the assembler is available as the file
-@uref{ftp://altdorf.ai.mit.edu/archive/cph/hpux-8.0-assembler}. If you
-have HP software support, the patch can also be obtained directly from
-HP, as described in the following note:
-
-@quotation
-This is the patched assembler, to patch SR#1653-010439, where the
-assembler aborts on floating point constants.
-
-The bug is not really in the assembler, but in the shared library
-version of the function ``cvtnum(3c)''. The bug on ``cvtnum(3c)'' is
-SR#4701-078451. Anyway, the attached assembler uses the archive
-library version of ``cvtnum(3c)'' and thus does not exhibit the bug.
-@end quotation
-
-This patch is also known as PHCO_4484.
-
-In addition, if you wish to use gas, you must use
-gas version 2.1 or later, and you must use the GNU linker version 2.1 or
-later. Earlier versions of gas relied upon a program which converted the
-gas output into the native HP-UX format, but that program has not been
-kept up to date. gdb does not understand that native HP-UX format, so
-you must use gas if you wish to use gdb.
-
-On HP-UX version 8.05, but not on 8.07 or more recent versions, the
-@code{fixproto} shell script triggers a bug in the system shell. If you
-encounter this problem, upgrade your operating system or use BASH (the
-GNU shell) to run @code{fixproto}. This bug will cause the fixproto
-program to report an error of the form:
-
-@example
-./fixproto: sh internal 1K buffer overflow
-@end example
-
-To fix this, you can also change the first line of the fixproto script
-to look like:
-
-@example
-#!/bin/ksh
-@end example
-
-
-@html
-<hr />
-@end html
-@heading @anchor{m68k-*-nextstep*}m68k-*-nextstep*
-These configurations are obsoleted in GCC 3.1.
-
-Current GCC versions probably do not work on version 2 of the NeXT
-operating system.
-
-On NeXTStep 3.0, the Objective-C compiler does not work, due,
-apparently, to a kernel bug that it happens to trigger. This problem
-does not happen on 3.1.
-
-You absolutely @strong{must} use GNU sed and GNU make on this platform.
-
-
-On NeXTSTEP 3.x where x < 3 the build of GCC will abort during
-stage1 with an error message like this:
-
-@example
- _eh
- /usr/tmp/ccbbsZ0U.s:987:Unknown pseudo-op: .section
- /usr/tmp/ccbbsZ0U.s:987:Rest of line ignored. 1st junk character
- valued 95 (_).
-@end example
-
-The reason for this is the fact that NeXT's assembler for these
-versions of the operating system does not support the @samp{.section}
-pseudo op that's needed for full C++ exception functionality.
-
-As NeXT's assembler is a derived work from GNU as, a free
-replacement that does can be obtained at
-@uref{ftp://ftp.next.peak.org:/next-ftp/next/apps/devtools/as.3.3.NIHS.s.tar.gz,,ftp://ftp.next.peak.org:/next-ftp/next/apps/devtools/as.3.3.NIHS.s.tar.gz}.
-
-If you try to build the integrated C++ & C++ runtime libraries on this system
-you will run into trouble with include files. The way to get around this is
-to use the following sequence. Note you must have write permission to
-the directory @var{prefix} you specified in the configuration process of GCC
-for this sequence to work.
-
-@example
- cd bld-gcc
- make all-texinfo all-bison all-byacc all-binutils all-gas all-ld
- cd gcc
- make bootstrap
- make install-headers-tar
- cd ..
- make bootstrap3
-@end example
-
-@html
-<hr />
-@end html
-@heading @anchor{m68k-ncr-*}m68k-ncr-*
-On the Tower models 4@var{n}0 and 6@var{n}0, by default a process is not
-allowed to have more than one megabyte of memory. GCC cannot compile
-itself (or many other programs) with @option{-O} in that much memory.
-
-To solve this problem, reconfigure the kernel adding the following line
-to the configuration file:
-
-@smallexample
-MAXUMEM = 4096
-@end smallexample
-
-
-@html
-<hr />
-@end html
-@heading @anchor{m68k-sun}m68k-sun
-Sun 3. We do not provide a configuration file to use the Sun FPA by
-default, because programs that establish signal handlers for floating
-point traps inherently cannot work with the FPA@.
-
-@html
-<hr />
-@end html
-@heading @anchor{m68k-sun-sunos4.1.1}m68k-sun-sunos4.1.1
-
-It is reported that you may need the GNU assembler on this platform.
-
-
-@html
-<hr />
-@end html
-@heading @anchor{m88k-*-svr3}m88k-*-svr3
-Motorola m88k running the AT&T/Unisoft/Motorola V.3 reference port.
-These configurations are obsoleted in GCC 3.1.
-
-These systems tend to use the Green Hills C, revision 1.8.5, as the
-standard C compiler. There are apparently bugs in this compiler that
-result in object files differences between stage 2 and stage 3. If this
-happens, make the stage 4 compiler and compare it to the stage 3
-compiler. If the stage 3 and stage 4 object files are identical, this
-suggests you encountered a problem with the standard C compiler; the
-stage 3 and 4 compilers may be usable.
-
-It is best, however, to use an older version of GCC for bootstrapping
-if you have one.
-
-@html
-<hr />
-@end html
-@heading @anchor{m88k-*-dgux}m88k-*-dgux
-Motorola m88k running DG/UX@.
-These configurations are obsoleted in GCC 3.1.
-
-To build 88open BCS native or cross
-compilers on DG/UX, specify the configuration name as
-@samp{m88k-*-dguxbcs} and build in the 88open BCS software development
-environment. To build ELF native or cross compilers on DG/UX, specify
-@samp{m88k-*-dgux} and build in the DG/UX ELF development environment.
-You set the software development environment by issuing
-@samp{sde-target} command and specifying either @samp{m88kbcs} or
-@samp{m88kdguxelf} as the operand.
-
-If you do not specify a configuration name, @file{configure} guesses the
-configuration based on the current software development environment.
-
-@html
-<hr />
-@end html
-@heading @anchor{m88k-tektronix-sysv3}m88k-tektronix-sysv3
-Tektronix XD88 running UTekV 3.2e.
-These configurations are obsoleted in GCC 3.1.
-
-Do not turn on
-optimization while building stage1 if you bootstrap with
-the buggy Green Hills compiler. Also, the bundled LAI
-System V NFS is buggy so if you build in an NFS mounted
-directory, start from a fresh reboot, or avoid NFS all together.
-Otherwise you may have trouble getting clean comparisons
-between stages.
-
-@html
-<hr />
-@end html
-@heading @anchor{mips-*-*}mips-*-*
-If you use the 1.31 version of the MIPS assembler (such as was shipped
-with Ultrix 3.1), you will need to use the @option{-fno-delayed-branch} switch
-when optimizing floating point code. Otherwise, the assembler will
-complain when the GCC compiler fills a branch delay slot with a
-floating point instruction, such as @code{add.d}.
-
-If on a MIPS system you get an error message saying ``does not have gp
-sections for all it's [sic] sectons [sic]'', don't worry about it. This
-happens whenever you use GAS with the MIPS linker, but there is not
-really anything wrong, and it is okay to use the output file. You can
-stop such warnings by installing the GNU linker.
-
-It would be nice to extend GAS to produce the gp tables, but they are
-optional, and there should not be a warning about their absence.
-
-Users have reported some problems with version 2.0 of the MIPS
-compiler tools that were shipped with Ultrix 4.1. Version 2.10
-which came with Ultrix 4.2 seems to work fine.
-
-Users have also reported some problems with version 2.20 of the
-MIPS compiler tools that were shipped with RISC/os 4.x. The earlier
-version 2.11 seems to work fine.
-
-Some versions of the MIPS linker will issue an assertion failure
-when linking code that uses @code{alloca} against shared
-libraries on RISC-OS 5.0, and DEC's OSF/1 systems. This is a bug
-in the linker, that is supposed to be fixed in future revisions.
-To protect against this, GCC passes @option{-non_shared} to the
-linker unless you pass an explicit @option{-shared} or
-@option{-call_shared} switch.
-
-@heading @anchor{mips-mips-bsd}mips-mips-bsd
-MIPS machines running the MIPS operating system in BSD mode.
-These configurations are obsoleted in GCC 3.1.
-
-It's possible that some old versions of the system lack the functions
-@code{memcpy}, @code{memmove}, @code{memcmp}, and @code{memset}. If your
-system lacks these, you must remove or undo the definition of
-@code{TARGET_MEM_FUNCTIONS} in @file{mips-bsd.h}.
-
-If you use the MIPS C compiler to bootstrap, it may be necessary
-to increase its table size for switch statements with the
-@option{-Wf,-XNg1500} option. If you use the @option{-O2}
-optimization option, you also need to use @option{-Olimit 3000}.
-Both of these options are automatically generated in the
-@file{Makefile} that the shell script @file{configure} builds.
-If you override the @code{CC} make variable and use the MIPS
-compilers, you may need to add @option{-Wf,-XNg1500 -Olimit 3000}.
-
-@html
-<hr />
-@end html
-@heading @anchor{mips-dec-*}mips-dec-*
-These configurations are obsoleted in GCC 3.1.
-
-MIPS-based DECstations can support three different personalities:
-Ultrix, DEC OSF/1, and OSF/rose. (Alpha-based DECstation products have
-a configuration name beginning with @samp{alpha*-dec}.) To configure GCC
-for these platforms use the following configurations:
-
-@table @samp
-@item mips-dec-ultrix
-Ultrix configuration.
-
-@item mips-dec-osf1
-DEC's version of OSF/1.
-
-@item mips-dec-osfrose
-Open Software Foundation reference port of OSF/1 which uses the
-OSF/rose object file format instead of ECOFF@. Normally, you
-would not select this configuration.
-@end table
-
-If you use the MIPS C compiler to bootstrap, it may be necessary
-to increase its table size for switch statements with the
-@option{-Wf,-XNg1500} option. If you use the @option{-O2}
-optimization option, you also need to use @option{-Olimit 3000}.
-Both of these options are automatically generated in the
-@file{Makefile} that the shell script @file{configure} builds.
-If you override the @code{CC} make variable and use the MIPS
-compilers, you may need to add @option{-Wf,-XNg1500 -Olimit 3000}.
-
-@html
-<hr />
-@end html
-@heading @anchor{mips-mips-riscos*}mips-mips-riscos*
-These configurations are obsoleted in GCC 3.1.
-
-If you use the MIPS C compiler to bootstrap, it may be necessary
-to increase its table size for switch statements with the
-@option{-Wf,-XNg1500} option. If you use the @option{-O2}
-optimization option, you also need to use @option{-Olimit 3000}.
-Both of these options are automatically generated in the
-@file{Makefile} that the shell script @file{configure} builds.
-If you override the @code{CC} make variable and use the MIPS
-compilers, you may need to add @samp{-Wf,-XNg1500 -Olimit 3000}.
-
-MIPS computers running RISC-OS can support four different
-personalities: default, BSD 4.3, System V.3, and System V.4
-(older versions of RISC-OS don't support V.4). To configure GCC
-for these platforms use the following configurations:
-
-@table @samp
-@item mips-mips-riscos@var{rev}
-Default configuration for RISC-OS, revision @var{rev}.
-
-@item mips-mips-riscos@var{rev}bsd
-BSD 4.3 configuration for RISC-OS, revision @var{rev}.
-
-@item mips-mips-riscos@var{rev}sysv4
-System V.4 configuration for RISC-OS, revision @var{rev}.
-
-@html
-<hr />
-@end html
-@item mips-mips-riscos@var{rev}sysv
-System V.3 configuration for RISC-OS, revision @var{rev}.
-@end table
-
-The revision @code{rev} mentioned above is the revision of
-RISC-OS to use. You must reconfigure GCC when going from a
-RISC-OS revision 4 to RISC-OS revision 5. This has the effect of
-avoiding a linker bug.
-
-@html
-<hr />
-@end html
-@heading @anchor{mips-sgi-irix4}mips-sgi-irix4
-This configuration is obsoleted in GCC 3.1.
-
-In order to compile GCC on an SGI running IRIX 4, the ``c.hdr.lib''
-option must be installed from the CD-ROM supplied from Silicon Graphics.
-This is found on the 2nd CD in release 4.0.1.
-
-On IRIX version 4.0.5F, and perhaps on some other versions as well,
-there is an assembler bug that reorders instructions incorrectly. To
-work around it, specify the target configuration
-@samp{mips-sgi-irix4loser}. This configuration inhibits assembler
-optimization.
-
-In a compiler configured with target @samp{mips-sgi-irix4}, you can turn
-off assembler optimization by using the @option{-noasmopt} option. This
-compiler option passes the option @option{-O0} to the assembler, to
-inhibit reordering.
-
-The @option{-noasmopt} option can be useful for testing whether a problem
-is due to erroneous assembler reordering. Even if a problem does not go
-away with @option{-noasmopt}, it may still be due to assembler
-reordering---perhaps GCC itself was miscompiled as a result.
-
-You may get the following warning on IRIX 4 platforms, it can be safely
-ignored.
-@example
- warning: foo.o does not have gp tables for all its sections.
-@end example
-
-@html
-<hr />
-@end html
-@heading @anchor{mips-sgi-irix5}mips-sgi-irix5
-
-This configuration has considerable problems, which will be fixed in a
-future release.
-
-In order to compile GCC on an SGI running IRIX 5, the ``compiler_dev.hdr''
-subsystem must be installed from the IDO CD-ROM supplied by Silicon
-Graphics. It is also available for download from
-@uref{http://www.sgi.com/developers/devtools/apis/ido.html,,http://www.sgi.com/developers/devtools/apis/ido.html}.
-
-@code{make compare} may fail on version 5 of IRIX unless you add
-@option{-save-temps} to @code{CFLAGS}. On these systems, the name of the
-assembler input file is stored in the object file, and that makes
-comparison fail if it differs between the @code{stage1} and
-@code{stage2} compilations. The option @option{-save-temps} forces a
-fixed name to be used for the assembler input file, instead of a
-randomly chosen name in @file{/tmp}. Do not add @option{-save-temps}
-unless the comparisons fail without that option. If you do you
-@option{-save-temps}, you will have to manually delete the @samp{.i} and
-@samp{.s} files after each series of compilations.
-
-If you use the MIPS C compiler to bootstrap, it may be necessary
-to increase its table size for switch statements with the
-@option{-Wf,-XNg1500} option. If you use the @option{-O2}
-optimization option, you also need to use @option{-Olimit 3000}.
-
-To enable debugging under IRIX 5, you must use GNU @command{as} 2.11.2
-or later,
-and use the @option{--with-gnu-as} configure option when configuring GCC.
-GNU @command{as} is distributed as part of the binutils package.
-When using release 2.11.2, you need to apply a patch
-@uref{http://sources.redhat.com/ml/binutils/2001-07/msg00352.html,,http://sources.redhat.com/ml/binutils/2001-07/msg00352.html}
-which will be included in the next release of binutils.
-
-When building GCC, the build process loops rebuilding @command{cc1} over
-and over again. This happens on @samp{mips-sgi-irix5.2}, and possibly
-other platforms. It has been reported that this is a known bug in the
-@command{make} shipped with IRIX 5.2. We recommend you use GNU
-@command{make} instead of the vendor supplied @command{make} program;
-however, you may have success with @command{smake} on IRIX 5.2 if you do
-not have GNU @command{make} available.
-
-@html
-<hr />
-@end html
-@heading @anchor{mips-sgi-irix6}mips-sgi-irix6
-
-If you are using IRIX @command{cc} as your bootstrap compiler, you must
-ensure that the N32 ABI is in use. To test this, compile a simple C
-file with @command{cc} and then run @command{file} on the
-resulting object file. The output should look like:
-
-@example
-test.o: ELF N32 MSB @dots{}
-@end example
-
-If you see:
-
-@example
-test.o: ELF 32-bit MSB @dots{}
-@end example
-
-or
-
-@example
-test.o: ELF 64-bit MSB @dots{}
-@end example
-
-then your version of @command{cc} uses the O32 or N64 ABI by default. You
-should set the environment variable @env{CC} to @samp{cc -n32}
-before configuring GCC@.
-
-If you want the resulting @command{gcc} to run on old 32-bit systems
-with the MIPS R4400 CPU, you need to ensure that only code for the mips3
-instruction set architecture (ISA) is generated. While GCC 3.x does
-this correctly, both GCC 2.95 and SGI's MIPSpro @command{cc} may change
-the ISA depending on the machine where GCC is built. Using one of them
-as the bootstrap compiler may result in mips4 code, which won't run at
-all on mips3-only systems. For the test program above, you should see:
-
-@example
-test.o: ELF N32 MSB mips-3 @dots{}
-@end example
-
-If you get:
-
-@example
-test.o: ELF N32 MSB mips-4 @dots{}
-@end example
-
-instead, you should set the environment variable @env{CC} to @samp{cc
--n32 -mips3} or @samp{gcc -mips3} respectively before configuring GCC@.
-
-GCC on IRIX 6 is usually built to support both the N32 and N64 ABIs. If
-you build GCC on a system that doesn't have the N64 libraries installed,
-you need to configure with @option{--disable-multilib} so GCC doesn't
-try to use them. Look for @file{/usr/lib64/libc.so.1} to see if you
-have the 64-bit libraries installed.
-
-You must @emph{not} use GNU @command{as} (which isn't built anyway as of
-binutils 2.11.2) on IRIX 6 platforms; doing so will only cause problems.
-
-GCC does not currently support generating O32 ABI binaries in the
-@samp{mips-sgi-irix6} configurations. It is possible to create a GCC
-with O32 ABI only support by configuring it for the @samp{mips-sgi-irix5}
-target and using a patched GNU @command{as} 2.11.2 as documented in the
-@uref{#mips-sgi-irix5,,@samp{mips-sgi-irix5}} section above. Using the
-native assembler requires patches to GCC which will be included in a
-future release. It is
-expected that O32 ABI support will be available again in a future release.
-
-The @option{--enable-threads} option doesn't currently work, a patch is
-in preparation for a future release. The @option{--enable-libgcj}
-option is disabled by default: IRIX 6 uses a very low default limit
-(20480) for the command line length. Although libtool contains a
-workaround for this problem, at least the N64 @samp{libgcj} is known not
-to build despite this, running into an internal error of the native
-@command{ld}. A sure fix is to increase this limit (@samp{ncargs}) to
-its maximum of 262144 bytes. If you have root access, you can use the
-@command{systune} command to do this.
-
-GCC does not correctly pass/return structures which are
-smaller than 16 bytes and which are not 8 bytes. The problem is very
-involved and difficult to fix. It affects a number of other targets also,
-but IRIX 6 is affected the most, because it is a 64-bit target, and 4 byte
-structures are common. The exact problem is that structures are being padded
-at the wrong end, e.g.@: a 4 byte structure is loaded into the lower 4 bytes
-of the register when it should be loaded into the upper 4 bytes of the
-register.
-
-GCC is consistent with itself, but not consistent with the SGI C compiler
-(and the SGI supplied runtime libraries), so the only failures that can
-happen are when there are library functions that take/return such
-structures. There are very few such library functions. Currently this
-is known to affect @code{inet_ntoa}, @code{inet_lnaof},
-@code{inet_netof}, @code{inet_makeaddr}, and @code{semctl}. Until the
-bug is fixed, GCC contains workarounds for the known affected functions.
-
-See @uref{http://freeware.sgi.com/,,http://freeware.sgi.com/} for more
-information about using GCC on IRIX platforms.
-
-@html
-<hr />
-@end html
-@heading @anchor{mips-sony-sysv}mips-sony-sysv
-Sony MIPS NEWS@. This configuration is obsoleted in GCC 3.1.
-
-This works in NEWSOS 5.0.1, but not in 5.0.2 (which uses ELF instead of
-COFF)@. In particular, the linker does not like the code generated by
-GCC when shared libraries are linked in.
-
-@html
-<hr />
-@end html
-@heading @anchor{ns32k-encore}ns32k-encore
-This configuration is obsoleted in GCC 3.1.
-
-Encore ns32000 system. Encore systems are supported only under BSD@.
-
-@html
-<hr />
-@end html
-@heading @anchor{ns32k-*-genix}ns32k-*-genix
-National Semiconductor ns32000 system. This configuration is obsoleted
-in GCC 3.1.
-
-Genix has bugs in @code{alloca} and @code{malloc}; you must get the
-compiled versions of these from GNU Emacs.
-
-@html
-<hr />
-@end html
-@heading @anchor{ns32k-sequent}ns32k-sequent
-This configuration is obsoleted in GCC 3.1.
-
-Go to the Berkeley universe before compiling.
-
-@html
-<hr />
-@end html
-@heading @anchor{ns32k-utek}ns32k-utek
-UTEK ns32000 system (``merlin''). This configuration is obsoleted in
-GCC 3.1.
-
-The C compiler that comes with this system cannot compile GCC; contact
-@samp{tektronix!reed!mason} to get binaries of GCC for bootstrapping.
-
-
-@html
-<hr />
-@end html
-@heading @anchor{powerpc*-*-*}powerpc-*-*
-
-You can specify a default version for the @option{-mcpu=@var{cpu_type}}
-switch by using the configure option @option{--with-cpu-@var{cpu_type}}.
-
-@html
-<hr />
-@end html
-@heading @anchor{powerpc-*-darwin*}powerpc-*-darwin*
-PowerPC running Darwin (Mac OS X kernel).
-
-GCC 3.0 does not support Darwin, but 3.1 and later releases will work.
-
-Pre-installed versions of Mac OS X may not include any developer tools,
-meaning that you will not be able to build GCC from source. Tool
-binaries are available at
-@uref{http://www.opensource.apple.com/projects/darwin} (free
-registration required).
-
-Versions of the assembler prior to ``cctools-364'' cannot handle the
-4-argument form of @code{rlwinm} and related mask-using instructions. Darwin
-1.3 (Mac OS X 10.0) uses cctools-353 for instance. To get cctools-364,
-check out @file{cctools} with tag @samp{Apple-364}, build it, and
-install the assembler as @file{usr/bin/as}. See
-@uref{http://www.opensource.apple.com/tools/cvs/docs.html} for details.
-
-Also, the default stack limit of 512K is too small, and a bootstrap will
-typically fail when self-compiling @file{expr.c}. Set the stack to 800K
-or more, for instance by doing @samp{limit stack 800}. It's also
-convenient to use the GNU preprocessor instead of Apple's during the
-first stage of bootstrapping; this is automatic when doing @samp{make
-bootstrap}, but to do it from the toplevel objdir you will need to say
-@samp{make CC='cc -no-cpp-precomp' bootstrap}.
-
-Note that the version of GCC shipped by Apple typically includes a
-number of extensions not available in a standard GCC release. These
-extensions are generally specific to Mac programming.
-
-@html
-<hr />
-@end html
-@heading @anchor{powerpc-*-elf}powerpc-*-elf, powerpc-*-sysv4
-PowerPC system in big endian mode, running System V.4.
-
-@html
-<hr />
-@end html
-@heading @anchor{powerpc-*-linux-gnu*}powerpc-*-linux-gnu*
-
-You will need
-@uref{ftp://ftp.kernel.org/pub/linux/devel/binutils,,binutils 2.13.90.0.10}
-or newer for a working GCC@.
-
-@html
-<hr />
-@end html
-@heading @anchor{powerpc-*-netbsd*}powerpc-*-netbsd*
-PowerPC system in big endian mode running NetBSD@. To build the
-documentation you will need Texinfo version 4.1 (NetBSD 1.5.1 included
-Texinfo version 3.12).
-
-@html
-<hr />
-@end html
-@heading @anchor{powerpc-*-eabiaix}powerpc-*-eabiaix
-Embedded PowerPC system in big endian mode with @option{-mcall-aix} selected as
-the default.
-
-@html
-<hr />
-@end html
-@heading @anchor{powerpc-*-eabisim}powerpc-*-eabisim
-Embedded PowerPC system in big endian mode for use in running under the
-PSIM simulator.
-
-@html
-<hr />
-@end html
-@heading @anchor{powerpc-*-eabi}powerpc-*-eabi
-Embedded PowerPC system in big endian mode.
-
-@html
-<hr />
-@end html
-@heading @anchor{powerpcle-*-elf}powerpcle-*-elf, powerpcle-*-sysv4
-PowerPC system in little endian mode, running System V.4.
-
-@html
-<hr />
-@end html
-@heading @anchor{powerpcle-*-eabisim}powerpcle-*-eabisim
-Embedded PowerPC system in little endian mode for use in running under
-the PSIM simulator.
-
-@html
-<hr />
-@end html
-@heading @anchor{powerpcle-*-eabi}powerpcle-*-eabi
-Embedded PowerPC system in little endian mode.
-
-@html
-<hr />
-@end html
-@heading @anchor{powerpcle-*-winnt}powerpcle-*-winnt, powerpcle-*-pe
-PowerPC system in little endian mode running Windows NT@.
-
-@html
-<hr />
-@end html
-@heading @anchor{romp-*-aos}romp-*-aos, romp-*-mach
-These configurations are obsoleted in GCC 3.1.
-
-We recommend you compile GCC with an earlier version of itself; if you
-compile GCC with @command{hc}, the Metaware compiler, it will work, but
-you will get mismatches between the stage 2 and stage 3 compilers in
-various files. These errors are minor differences in some
-floating-point constants and can be safely ignored; the stage 3 compiler
-is correct.
-
-@html
-<hr />
-@end html
-@heading @anchor{s390-*-linux*}s390-*-linux*
-S/390 system running Linux for S/390@.
-
-@html
-<hr />
-@end html
-@heading @anchor{s390x-*-linux*}s390x-*-linux*
-zSeries system (64-bit) running Linux for zSeries@.
-
-@html
-<hr />
-@end html
-@c Please use Solaris 2 to refer to all release of Solaris, starting
-@c with 2.0 until 2.6, 7, and 8. Solaris 1 was a marketing name for
-@c SunOS 4 releases which we don't use to avoid confusion. Solaris
-@c alone is too unspecific and must be avoided.
-@heading @anchor{*-*-solaris2*}*-*-solaris2*
-
-Sun does not ship a C compiler with Solaris 2. To bootstrap and install
-GCC you first have to install a pre-built compiler, see our
-@uref{binaries.html,,binaries page} for details.
-
-The Solaris 2 @command{/bin/sh} will often fail to configure
-@file{libstdc++-v3}, @file{boehm-gc} or
-@file{libjava}. If you encounter this problem, set @env{CONFIG_SHELL} to
-@command{/bin/ksh} in your environment before running @command{configure}.
-
-Solaris 2 comes with a number of optional OS packages. Some of these
-packages are needed to use GCC fully, namely @code{SUNWarc},
-@code{SUNWbtool}, @code{SUNWesu}, @code{SUNWhea}, @code{SUNWlibm},
-@code{SUNWsprot}, and @code{SUNWtoo}. If you did not install all
-optional packages when installing Solaris 2, you will need to verify that
-the packages that GCC needs are installed.
-
-To check whether an optional package is installed, use
-the @command{pkginfo} command. To add an optional package, use the
-@command{pkgadd} command. For further details, see the Solaris 2
-documentation.
-
-Trying to use the linker and other tools in
-@file{/usr/ucb} to install GCC has been observed to cause trouble.
-For example, the linker may hang indefinitely. The fix is to remove
-@file{/usr/ucb} from your @env{PATH}.
-
-All releases of GNU binutils prior to 2.11.2 have known bugs on this
-platform. We recommend the use of GNU binutils 2.11.2 or the vendor
-tools (Sun @command{as}, Sun @command{ld}).
-
-Sun bug 4296832 turns up when compiling X11 headers with GCC 2.95 or
-newer: @command{g++} will complain that types are missing. These headers assume
-that omitting the type means @code{int}; this assumption worked for C89 but
-is wrong for C++, and is now wrong for C99 also.
-
-@command{g++} accepts such (invalid) constructs with the option
-@option{-fpermissive}; it
-will assume that any missing type is @code{int} (as defined by C89).
-
-There are patches for Solaris 2.6 (105633-56 or newer for SPARC,
-106248-42 or newer for Intel), Solaris 7 (108376-21 or newer for SPARC,
-108377-20 for Intel), and Solaris 8 (108652-24 or newer for SPARC,
-108653-22 for Intel) that fix this bug.
-
-@html
-<hr />
-@end html
-@heading @anchor{sparc-sun-solaris2*}sparc-sun-solaris2*
-
-When GCC is configured to use binutils 2.11.2 or later the binaries
-produced are smaller than the ones produced using Sun's native tools;
-this difference is quite significant for binaries containing debugging
-information.
-
-Sun @command{as} 4.x is broken in that it cannot cope with long symbol names.
-A typical error message might look similar to the following:
-
-@smallexample
-/usr/ccs/bin/as: "/var/tmp/ccMsw135.s", line 11041: error:
- can't compute value of an expression involving an external symbol.
-@end smallexample
-
-This is Sun bug 4237974. This is fixed with patch 108908-02 for Solaris
-2.6 and has been fixed in later (5.x) versions of the assembler,
-starting with Solaris 7.
-
-Starting with Solaris 7, the operating system is capable of executing
-64-bit SPARC V9 binaries. GCC 3.1 and later properly supports
-this; the @option{-m64} option enables 64-bit code generation.
-However, if all you want is code tuned for the UltraSPARC CPU, you
-should try the @option{-mtune=ultrasparc} option instead, which produces
-code that, unlike full 64-bit code, can still run on non-UltraSPARC
-machines.
-
-When configuring on a Solaris 7 or later system that is running a kernel
-that supports only 32-bit binaries, one must configure with
-@option{--disable-multilib}, since we will not be able to build the
-64-bit target libraries.
-
-@html
-<hr />
-@end html
-@heading @anchor{sparc-sun-solaris2.7}sparc-sun-solaris2.7
-
-Sun patch 107058-01 (1999-01-13) for Solaris 7/SPARC triggers a bug in
-the dynamic linker. This problem (Sun bug 4210064) affects GCC 2.8
-and later, including all EGCS releases. Sun formerly recommended
-107058-01 for all Solaris 7 users, but around 1999-09-01 it started to
-recommend it only for people who use Sun's compilers.
-
-Here are some workarounds to this problem:
-@itemize @bullet
-@item
-Do not install Sun patch 107058-01 until after Sun releases a
-complete patch for bug 4210064. This is the simplest course to take,
-unless you must also use Sun's C compiler. Unfortunately 107058-01
-is preinstalled on some new Solaris 7-based hosts, so you may have to
-back it out.
-
-@item
-Copy the original, unpatched Solaris 7
-@command{/usr/ccs/bin/as} into
-@command{/usr/local/lib/gcc-lib/sparc-sun-solaris2.7/3.1/as},
-adjusting the latter name to fit your local conventions and software
-version numbers.
-
-@item
-Install Sun patch 106950-03 (1999-05-25) or later. Nobody with
-both 107058-01 and 106950-03 installed has reported the bug with GCC
-and Sun's dynamic linker. This last course of action is riskiest,
-for two reasons. First, you must install 106950 on all hosts that
-run code generated by GCC; it doesn't suffice to install it only on
-the hosts that run GCC itself. Second, Sun says that 106950-03 is
-only a partial fix for bug 4210064, but Sun doesn't know whether the
-partial fix is adequate for GCC@. Revision -08 or later should fix
-the bug. The current (as of 2001-09-24) revision is -14, and is included in
-the Solaris 7 Recommended Patch Cluster.
-@end itemize
-
-
-@html
-<p>
-<hr />
-@end html
-@heading @anchor{sparc-sun-sunos4*}sparc-sun-sunos4*
-
-A bug in the SunOS 4 linker will cause it to crash when linking
-@option{-fPIC} compiled objects (and will therefore not allow you to build
-shared libraries).
-
-To fix this problem you can either use the most recent version of
-binutils or get the latest SunOS 4 linker patch (patch ID 100170-10)
-from Sun's patch site.
-
-Sometimes on a Sun 4 you may observe a crash in the program
-@command{genflags} or @command{genoutput} while building GCC. This is said to
-be due to a bug in @command{sh}. You can probably get around it by running
-@command{genflags} or @command{genoutput} manually and then retrying the
-@command{make}.
-
-@html
-<hr />
-@end html
-@heading @anchor{sparc-unknown-linux-gnulibc1}sparc-unknown-linux-gnulibc1
-
-It has been reported that you might need
-@uref{ftp://ftp.yggdrasil.com/private/hjl,,binutils 2.8.1.0.23}
-for this platform, too.
-
-
-@html
-<hr />
-@end html
-@heading @anchor{sparc-*-linux*}sparc-*-linux*
-
-GCC versions 3.0 and higher require binutils 2.11.2 and glibc 2.2.4
-or newer on this platform. All earlier binutils and glibc
-releases mishandled unaligned relocations on @code{sparc-*-*} targets.
-
-
-@html
-<hr />
-@end html
-@heading @anchor{sparc64-*-*}sparc64-*-*
-
-GCC version 2.95 is not able to compile code correctly for
-@code{sparc64} targets. Users of the Linux kernel, at least,
-can use the @code{sparc32} program to start up a new shell
-invocation with an environment that causes @command{configure} to
-recognize (via @samp{uname -a}) the system as @samp{sparc-*-*} instead.
-
-@html
-<hr />
-@end html
-@heading @anchor{sparcv9-*-solaris2*}sparcv9-*-solaris2*
-
-The following compiler flags must be specified in the configure
-step in order to bootstrap this target with the Sun compiler:
-
-@example
- % CC="cc -xildoff -xarch=v9" @var{srcdir}/configure [@var{options}] [@var{target}]
-@end example
-
-@option{-xildoff} turns off the incremental linker, and @option{-xarch=v9}
-specifies the v9 architecture to the Sun linker and assembler.
-
-@html
-<hr />
-@end html
-@heading @anchor{#*-*-sysv*}*-*-sysv*
-On System V release 3, you may get this error message
-while linking:
-
-@smallexample
-ld fatal: failed to write symbol name @var{something}
- in strings table for file @var{whatever}
-@end smallexample
-
-This probably indicates that the disk is full or your ulimit won't allow
-the file to be as large as it needs to be.
-
-This problem can also result because the kernel parameter @code{MAXUMEM}
-is too small. If so, you must regenerate the kernel and make the value
-much larger. The default value is reported to be 1024; a value of 32768
-is said to work. Smaller values may also work.
-
-On System V, if you get an error like this,
-
-@example
-/usr/local/lib/bison.simple: In function `yyparse':
-/usr/local/lib/bison.simple:625: virtual memory exhausted
-@end example
-
-@noindent
-that too indicates a problem with disk space, ulimit, or @code{MAXUMEM}.
-
-On a System V release 4 system, make sure @file{/usr/bin} precedes
-@file{/usr/ucb} in @code{PATH}. The @code{cc} command in
-@file{/usr/ucb} uses libraries which have bugs.
-
-@html
-<hr />
-@end html
-@heading @anchor{vax-dec-ultrix}vax-dec-ultrix
-Don't try compiling with VAX C (@code{vcc}). It produces incorrect code
-in some cases (for example, when @code{alloca} is used).
-
-@html
-<hr />
-@end html
-@heading @anchor{we32k-*-*}we32k-*-*
-These computers are also known as the 3b2, 3b5, 3b20 and other similar
-names. (However, the 3b1 is actually a 68000.)
-These configurations are obsoleted in GCC 3.1.
-
-Don't use @option{-g} when compiling with the system's compiler. The
-system's linker seems to be unable to handle such a large program with
-debugging information.
-
-The system's compiler runs out of capacity when compiling @file{stmt.c}
-in GCC@. You can work around this by building @file{cpp} in GCC
-first, then use that instead of the system's preprocessor with the
-system's C compiler to compile @file{stmt.c}. Here is how:
-
-@smallexample
-mv /lib/cpp /lib/cpp.att
-cp cpp /lib/cpp.gnu
-echo '/lib/cpp.gnu -traditional $@{1+"$@@"@}' > /lib/cpp
-chmod +x /lib/cpp
-@end smallexample
-
-The system's compiler produces bad code for some of the GCC
-optimization files. So you must build the stage 2 compiler without
-optimization. Then build a stage 3 compiler with optimization.
-That executable should work. Here are the necessary commands:
-
-@smallexample
-make LANGUAGES=c CC=stage1/xgcc CFLAGS="-Bstage1/ -g"
-make stage2
-make CC=stage2/xgcc CFLAGS="-Bstage2/ -g -O"
-@end smallexample
-
-You may need to raise the ULIMIT setting to build a C++ compiler,
-as the file @file{cc1plus} is larger than one megabyte.
-
-@html
-<hr />
-@end html
-@heading @anchor{xtensa-*-elf}xtensa-*-elf
-
-This target is intended for embedded Xtensa systems using the
-@samp{newlib} C library. It uses ELF but does not support shared
-objects. Designed-defined instructions specified via the
-Tensilica Instruction Extension (TIE) language are only supported
-through inline assembly.
-
-The Xtensa configuration information must be specified prior to
-building GCC@. The @file{gcc/config/xtensa/xtensa-config.h} header
-file contains the configuration information. If you created your
-own Xtensa configuration with the Xtensa Processor Generator, the
-downloaded files include a customized copy of this header file,
-which you can use to replace the default header file.
-
-@html
-<hr />
-@end html
-@heading @anchor{xtensa-*-linux*}xtensa-*-linux*
-
-This target is for Xtensa systems running GNU/Linux. It supports ELF
-shared objects and the GNU C library (glibc). It also generates
-position-independent code (PIC) regardless of whether the
-@option{-fpic} or @option{-fPIC} options are used. In other
-respects, this target is the same as the
-@uref{#xtensa-*-elf,,@samp{xtensa-*-elf}} target.
-
-@html
-<hr />
-@end html
-@heading @anchor{windows}Microsoft Windows (32-bit)
-
-A port of GCC 2.95.x is included with the
-@uref{http://www.cygwin.com/,,Cygwin environment}.
-
-Current (as of early 2001) snapshots of GCC will build under Cygwin
-without modification.
-
-@html
-<hr />
-@end html
-@heading @anchor{os2}OS/2
-
-GCC does not currently support OS/2. However, Andrew Zabolotny has been
-working on a generic OS/2 port with pgcc. The current code can be found
-at @uref{http://www.goof.com/pcg/os2/,,http://www.goof.com/pcg/os2/}.
-
-An older copy of GCC 2.8.1 is included with the EMX tools available at
-@uref{ftp://ftp.leo.org/pub/comp/os/os2/leo/devtools/emx+gcc/,,
-ftp://ftp.leo.org/pub/comp/os/os2/leo/devtools/emx+gcc/}.
-
-@html
-<hr />
-@end html
-@heading @anchor{older}Older systems
-
-GCC contains support files for many older (1980s and early
-1990s) Unix variants. For the most part, support for these systems
-has not been deliberately removed, but it has not been maintained for
-several years and may suffer from bitrot. Support from some systems
-has been removed from GCC 3: fx80, ns32-ns-genix, pyramid, tahoe,
-gmicro, spur; most of these targets had not been updated since GCC
-version 1.
-
-We are planning to remove support for more older systems, starting in
-GCC 3.1. Each release will have a list of ``obsoleted'' systems.
-Support for these systems is still present in that release, but
-@command{configure} will fail unless the @option{--enable-obsolete}
-option is given. Unless a maintainer steps forward, support for
-these systems will be removed from the next release of GCC@.
-
-Support for older systems as targets for cross-compilation is less
-problematic than support for them as hosts for GCC; if an enthusiast
-wishes to make such a target work again (including resurrecting any
-of the targets that never worked with GCC 2, starting from the last
-CVS version before they were removed), patches
-@uref{../contribute.html,,following the usual requirements}
-would be likely to be accepted, since they should not affect the
-support for more modern targets.
-
-Support for old systems as hosts for GCC can cause problems if the
-workarounds for compiler, library and operating system bugs affect the
-cleanliness or maintainability of the rest of GCC@. In some cases, to
-bring GCC up on such a system, if still possible with current GCC, may
-require first installing an old version of GCC which did work on that
-system, and using it to compile a more recent GCC, to avoid bugs in
-the vendor compiler. Old releases of GCC 1 and GCC 2 are available in
-the @file{old-releases} directory on the
-@uref{../mirrors.html,,GCC mirror sites}. Header bugs may generally
-be avoided using @command{fixincludes}, but bugs or deficiencies in
-libraries and the operating system may still cause problems.
-
-For some systems, old versions of GNU binutils may also be useful,
-and are available from @file{pub/binutils/old-releases} on
-@uref{http://sources.redhat.com/mirrors.html,,sources.redhat.com mirror sites}.
-
-Some of the information on specific systems above relates to
-such older systems, but much of the information
-about GCC on such systems (which may no longer be applicable to
-current GCC) is to be found in the GCC texinfo manual.
-
-@html
-<hr />
-@end html
-@heading @anchor{elf_targets}all ELF targets (SVR4, Solaris 2, etc.)
-
-C++ support is significantly better on ELF targets if you use the
-@uref{./configure.html#with-gnu-ld,,GNU linker}; duplicate copies of
-inlines, vtables and template instantiations will be discarded
-automatically.
-
-
-@html
-<hr />
-<p>
-@end html
-@ifhtml
-@uref{./index.html,,Return to the GCC Installation page}
-@end ifhtml
-@end ifset
-
-@c ***Old documentation******************************************************
-@ifset oldhtml
-@include install-old.texi
-@html
-<hr />
-<p>
-@end html
-@ifhtml
-@uref{./index.html,,Return to the GCC Installation page}
-@end ifhtml
-@end ifset
-
-@c ***GFDL********************************************************************
-@ifset gfdlhtml
-@include fdl.texi
-@html
-<hr />
-<p>
-@end html
-@ifhtml
-@uref{./index.html,,Return to the GCC Installation page}
-@end ifhtml
-@end ifset
-
-@c ***************************************************************************
-@c Part 6 The End of the Document
-@ifinfo
-@comment node-name, next, previous, up
-@node Concept Index, , GNU Free Documentation License, Top
-@end ifinfo
-
-@ifinfo
-@unnumbered Concept Index
-
-@printindex cp
-
-@contents
-@end ifinfo
-@bye
diff --git a/contrib/gcc/doc/install.texi2html b/contrib/gcc/doc/install.texi2html
deleted file mode 100755
index 3917e2a..0000000
--- a/contrib/gcc/doc/install.texi2html
+++ /dev/null
@@ -1,31 +0,0 @@
-#!/bin/sh
-#
-# Convert the GCC install documentation from texinfo format to HTML.
-#
-# $SOURCEDIR and $DESTDIR, resp., refer to the directory containing
-# the texinfo source and the directory to put the HTML version in.
-#
-# (C) 2001 Free Software Foundation
-# Originally by Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>, June 2001.
-#
-# This script is Free Software, and it can be copied, distributed and
-# modified as defined in the GNU General Public License. A copy of
-# its license can be downloaded from http://www.gnu.org/copyleft/gpl.html
-
-SOURCEDIR=${SOURCEDIR-.}
-DESTDIR=${DESTDIR-HTML}
-
-MAKEINFO=${MAKEINFO-makeinfo}
-
-if [ ! -d $DESTDIR ]; then
- mkdir -p $DESTDIR
-fi
-
-for x in index.html specific.html download.html configure.html \
- build.html test.html finalinstall.html binaries.html old.html \
- gfdl.html
-do
- define=`echo $x | sed -e 's/\.//g'`
- echo "define = $define"
- $MAKEINFO -I $SOURCEDIR -I $SOURCEDIR/include $SOURCEDIR/install.texi --html --no-split -D$define -o$DESTDIR/$x
-done
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