Virgin import of EGCS 1.1.2's libf2c

1 files changed, 685 insertions, 0 deletions

diff --git a/contrib/libf2c/readme.netlib b/contrib/libf2c/readme.netlib
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+
+====== old index for f2c, now "readme from f2c" ============
+
+FILES:
+
+f2c.h	Include file necessary for compiling output of the converter.
+	See the second NOTE below.
+
+f2c.1	Man page for f2c.
+
+f2c.1t	Source for f2c.1 (to be processed by troff -man or nroff -man).
+
+libf77	Library of non I/O support routines the generated C may need.
+	Fortran main programs result in a C function named MAIN__ that
+	is meant to be invoked by the main() in libf77.
+
+libi77	Library of Fortran I/O routines the generated C may need.
+	Note that some vendors (e.g., BSD, Sun and MIPS) provide a
+	libF77 and libI77 that are incompatible with f2c -- they
+	provide some differently named routines or routines with the
+	names that f2c expects, but with different calling sequences.
+	On such systems, the recommended procedure is to merge
+	libf77 and libi77 into a single library, say libf2c, and to
+        install it where you can access it by specifying -lf2c .  The
+        definition of link_msg in sysdep.c assumes this arrangement.
+
+	Both libf77 and libi77 are bundles, meant to be unpacked by the
+	Bourne (or Korn) shell.  MS-DOS users can use the MKS Toolkit
+	to unpack libf77 and libi77.
+
+libf2c.zip
+	Only available by ftp: combination of libf77 and libi77, with
+	Unix and PC makefiles.
+
+f2c.ps	Postscript for a technical report on f2c.  After you strip the
+	mail header, the first line should be "%!PS".
+
+fixes	The complete change log, reporting bug fixes and other changes.
+	(Some recent change-log entries are given below).
+
+fc	A shell script that uses f2c and imitates much of the behavior
+	of commonly found f77 commands.  You will almost certainly
+	need to adjust some of the shell-variable assignments to make
+	this script work on your system.
+
+
+SUBDIRECTORY:
+
+f2c/src	Source for the converter itself, including a file of checksums
+	and source for a program to compute the checksums (to verify
+	correct transmission of the source), is available: ask netlib
+	(e.g., netlib@netlib.bell-labs.com) to
+		send all from f2c/src
+	If the checksums show damage to just a few source files, or if
+	the change log file (see "fixes" below) reports corrections to
+	some source files, you can request those files individually
+	"from f2c/src".  For example, to get defs.h and xsum0.out, you
+	would ask netlib to
+		send defs.h xsum0.out from f2c/src
+	"all from f2c/src" is about 640 kilobytes long; for convenience
+	(and checksums), it includes copies of f2c.h, f2c.1, and f2c.1t.
+
+	Tip: if asked to send over 99,000 bytes in one request, netlib
+	breaks the shipment into 1000 line pieces and sends each piece
+	separately (since otherwise some mailers might gag).  To avoid
+	the hassle of reassembling the pieces, try to keep each request
+	under 99,000 bytes long.  The final number in each line of
+	xsum0.out gives the length of each file in f2c/src.  For
+	example,
+		send exec.c expr.c from f2c/src
+		send format.c format_data.c from f2c/src
+	will give you slightly less hassle than
+		send exec.c expr.c format.c format_data.c from f2c/src
+	Alternatively, if all the mailers in your return path allow
+	long messages, you can supply an appropriate mailsize line in
+	your netlib request, e.g.
+		mailsize 200k
+		send exec.c expr.c format.c format_data.c from f2c/src
+
+	The makefile used to generate gram.c; now we distribute a
+	working gram.c, and you must say
+		make gram1.c
+		mv gram1.c gram.c
+	if you want to generate your own gram.c -- there are just too
+	many broken variants of yacc floating around nowadays for
+	generation of gram.c to be the default.
+
+NOTE:	You may exercise f2c by sending netlib@netlib.bell-labs.com
+	a message whose first line is "execute f2c" and whose remaining
+	lines are the Fortran 77 source that you wish to have converted.
+	Return mail brings you the resulting C, with f2c's error
+	messages between #ifdef uNdEfInEd and #endif at the end.
+	(To understand line numbers in the error messages, regard
+	the "execute f2c" line as line 0.  It is stripped away by
+	the netlib software before f2c sees your Fortran input.)
+	Options described in the man page may be transmitted to
+	netlib by having the first line of input be a comment
+	whose first 6 characters are "c$f2c " and whose remaining
+	characters are the desired options, e.g., "c$f2c -R -u".
+
+	You may say "execute f2c" in the Subject line instead of (but
+	*not* in addition to) in the first line of the message body.
+
+	The incoming Fortran is saved, at least for a while.  Don't
+	send any secrets!
+
+
+BUGS:	Please send bug reports (including the shortest example
+	you can find that illustrates the bug) to research!dmg
+	or dmg@bell-labs.com .  You might first check whether
+	the bug goes away when you turn optimization off.
+
+
+NOTE:	f2c.h defines several types, e.g., real, integer, doublereal.
+	The definitions in f2c.h are suitable for most machines, but if
+	your machine has sizeof(double) > 2*sizeof(long), you may need
+	to adjust f2c.h appropriately.  f2c assumes
+		sizeof(doublecomplex) = 2*sizeof(doublereal)
+		sizeof(doublereal) = sizeof(complex)
+		sizeof(doublereal) = 2*sizeof(real)
+		sizeof(real) = sizeof(integer)
+		sizeof(real) = sizeof(logical)
+		sizeof(real) = 2*sizeof(shortint)
+	EQUIVALENCEs may not be translated correctly if these
+	assumptions are violated.
+
+	On machines, such as those using a DEC Alpha processor, on
+	which sizeof(short) == 2, sizeof(int) == sizeof(float) == 4,
+	and sizeof(long) == sizeof(double) == 8, it suffices to
+	modify f2c.h by removing the first occurrence of "long "
+	on each line containing "long ", e.g., by issuing the
+	commands
+		mv f2c.h f2c.h0
+		sed 's/long //' f2c.h0 >f2c.h
+	On such machines, one can enable INTEGER*8 by uncommenting
+	the typedef of longint in f2c.h, so it reads
+		typedef long longint;
+	by compiling libI77 with -DAllow_TYQUAD, and by adjusting
+	libF77/makefile as described in libF77/README.
+
+	Some machines may have sizeof(int) == 4, sizeof(float) == 8,
+	and sizeof(long long) == 8.  On such machines, adjust f2c.h
+	by changing "long int " to "long long ", e.g., by saying
+		mv f2c.h f2c.h0
+		sed 's/long int /long long /' f2c.h0 >f2c.h
+	One can enable INTEGER*8 on such machines as described
+	above, but with
+		typedef long long longint;
+
+	There exists a C compiler that objects to the lines
+		typedef VOID C_f;	/* complex function */
+		typedef VOID H_f;	/* character function */
+		typedef VOID Z_f;	/* double complex function */
+	in f2c.h .  If yours is such a compiler, do two things:
+	1. Complain to your vendor about this compiler bug.
+	2. Find the line
+		#define VOID void
+	   in f2c.h and change it to
+		#define VOID int
+	(For readability, the f2c.h lines shown above have had two
+	tabs inserted before their first character.)
+
+FTP:	All the material described above is now available by anonymous
+	ftp from netlib.bell-labs.com (login: anonymous; Password: your
+	E-mail address; cd netlib/f2c).  Note that you can say, e.g.,
+
+		cd /netlib/f2c/src
+		binary
+		prompt
+		mget *.gz
+
+	to get all the .gz files in src.  You must uncompress the .gz
+	files once you have a copy of them, e.g., by
+
+		gzip -dN *.gz
+
+	You can also get the entire f2c tree as a tar file:
+
+		ftp://netlib.bell-labs.com/netlib/f2c.tar
+
+	(which is a synthetic file -- created on the fly and not visible
+	to ftp's "ls" or "dir" commands).
+
+	Subdirectory msdos contains two PC versions of f2c,
+	f2c.exe.gz and f2cx.exe.gz; the latter uses extended memory.
+	The README in that directory provides more details.
+
+	Changes appear first in the f2c files available by E-mail
+	from netlib@netlib.bell-labs.com.  If the deamons work right,
+	changed files are available the next day by ftp from
+	netlib.bell-labs.com.  In due course, they reach other netlib servers.
+
+CHANGE NOTIFICATION:
+	Send the E-mail message
+		subscribe f2c
+	to netlib@netlib.bell-labs.com to request notification of new and
+	changed f2c files.  (Beware that automatically sent change
+	notifications may reach you before changes have reached
+	ftp://netlib.bell-labs.com/netlib/f2c or to other netlib servers.)
+	Send the E-mail message
+		unsubscribe f2c
+	to recant your notification request.
+
+-----------------
+Recent change log (partial)
+-----------------
+
+Mon May 13 23:35:26 EDT 1996
+  Recognize Fortran 90's /= as a synonym for .NE..  (<> remains a
+synonym for .NE..)
+  Emit an empty int function of no arguments to supply an external
+name to named block data subprograms (so they can be called somewhere
+to force them to be loaded from a library).
+  Fix bug (memory fault) in handling the following illegal Fortran:
+	parameter(i=1)
+	equivalence(i,j)
+	end
+  Treat cdabs, cdcos, cdexp, cdlog, cdsin, and cdsqrt as synonyms for
+the double complex intrinsics zabs, zcos, zexp, zlog, zsin, and zsqrt,
+respectively, unless -cd is specified.
+  Recognize the Fortran 90 bit-manipulation intrinsics btest, iand,
+ibclr, ibits, ibset, ieor, ior, ishft, and ishftc, unless -i90 is
+specified.  Note that iand, ieor, and ior are thus now synonyms for
+"and", "xor", and "or", respectively.
+  Add three macros (bit_test, bit_clear, bit_set) to f2c.h for use
+with btest, ibclr, and ibset, respectively.  Add new functions
+[lq]bit_bits, [lq]bit_shift, and [lq]_bit_cshift to libF77 for
+use with ibits, ishft, and ishftc, respectively.
+  Add integer function ftell(unit) (returning -1 on error) and
+subroutine fseek(unit, offset, whence, *) to libI77 (with branch to
+label * on error).
+
+Tue May 14 23:21:12 EDT 1996
+  Fix glitch (possible memory fault, or worse) in handling multiple
+entry points with names over 28 characters long.
+
+Mon Jun 10 01:20:16 EDT 1996
+  Update netlib E-mail and ftp addresses in f2c/readme and
+f2c/src/readme (which are different files) -- to reflect the upcoming
+breakup of AT&T.
+  libf77: trivial tweaks to F77_aloc.c and system_.c; Version.c not
+changed.
+  libi77: Adjust rsli.c and lread.c so internal list input with too
+few items in the input string will honor end= .
+
+Mon Jun 10 22:59:57 EDT 1996
+  Add Bits_per_Byte to sysdep.h and adjust definition of Table_size
+to depend on Bits_per_Byte (forcing Table_size to be a power of 2); in
+lex.c, change "comstart[c & 0xfff]" to "comstart[c & (Table_size-1)]"
+to avoid an out-of-range subscript on end-of-file.
+
+Wed Jun 12 00:24:28 EDT 1996
+  Fix bug in output.c (dereferencing a freed pointer) revealed in
+	print *		!np in out_call in output.c clobbered by free
+	end		!during out_expr.
+
+Wed Jun 19 08:12:47 EDT 1996
+  f2c.h: add types uinteger, ulongint (for libF77); add qbit_clear
+and qbit_set macros (in a commented-out section) for integer*8.
+  For integer*8, use qbit_clear and qbit_set for ibclr and ibset.
+  libf77: add casts to unsigned in [lq]bitshft.c.
+
+Thu Jun 20 13:30:43 EDT 1996
+  Complain at character*(*) in common (rather than faulting).
+  Fix bug in recognizing hex constants that start with "16#" (e.g.,
+16#1234abcd, which is a synonym for z'1234abcd').
+  Fix bugs in constant folding of expressions involving btest, ibclr,
+and ibset.
+  Fix bug in constant folding of rshift(16#80000000, -31) (on a 32-bit
+machine; more generally, the bug was in constant folding of
+rshift(ibset(0,NBITS-1), 1-NBITS) when f2c runs on a machine with
+long ints having NBITS bits.
+
+Mon Jun 24 07:58:53 EDT 1996
+  Adjust struct Literal and newlabel() function to accommodate huge
+source files (with more than 32767 newlabel() invocations).
+  Omit .c file when the .f file has a missing final end statement.
+
+Wed Jun 26 14:00:02 EDT 1996
+  libi77: Add discussion of MXUNIT (highest allowed Fortran unit number)
+to libI77/README.
+
+Fri Jun 28 14:16:11 EDT 1996
+  Fix glitch with -onetrip: the temporary variable used for nonconstant
+initial loop variable values was recycled too soon.  Example:
+	do i = j+1, k
+		call foo(i+1)	! temp for j+1 was reused here
+		enddo
+	end
+
+Tue Jul  2 16:11:27 EDT 1996
+  formatdata.c: add a 0 to the end of the basetype array (for TYBLANK)
+(an omission that was harmless on most machines).
+  expr.c: fix a dereference of NULL that was only possible with buggy
+input, such as
+	subroutine $sub(s)	! the '$' is erroneous
+	character s*(*)
+	s(1:) = ' '
+	end
+
+Sat Jul  6 00:44:56 EDT 1996
+  Fix glitch in the intrinsic "real" function when applied to a
+complex (or double complex) variable and passed as an argument to
+some intrinsic functions.  Example:
+	complex a
+	b = sqrt(real(a))
+	end
+  Fix glitch (only visible if you do not use f2c's malloc and the
+malloc you do use is defective in the sense that malloc(0) returns 0)
+in handling include files that end with another include (perhaps
+followed by comments).
+  Fix glitch with character*(*) arguments named "h" and "i" when
+the body of the subroutine invokes the intrinsic LEN function.
+  Arrange that after a previous "f2c -P foo.f" has produced foo.P,
+running "f2c foo.P foo.f" will produce valid C when foo.f contains
+	call sub('1234')
+	end
+	subroutine sub(msg)
+	end
+Specifically, the length argument in "call sub" is now suppressed.
+With or without foo.P, it is also now suppressed when the order of
+subprograms in file foo.f is reversed:
+	subroutine sub(msg)
+	end
+	call sub('1234')
+	end
+  Adjust copyright notices to reflect AT&T breakup.
+
+Wed Jul 10 09:25:49 EDT 1996
+  Fix bug (possible memory fault) in handling erroneously placed
+and inconsistent declarations.  Example that faulted:
+	character*1 w(8)
+	call foo(w)
+	end
+	subroutine foo(m)
+	data h /0.5/
+	integer m(2)	! should be before data
+	end
+  Fix bug (possible fault) in handling illegal "if" constructions.
+Example (that faulted):
+	subroutine foo(i,j)
+	if (i) then		! bug: i is integer, not logical
+	else if (j) then	! bug: j is integer, not logical
+	endif
+	end
+  Fix glitch with character*(*) argument named "ret_len" to a
+character*(*) function.
+
+Wed Jul 10 23:04:16 EDT 1996
+  Fix more glitches in the intrinsic "real" function when applied to a
+complex (or double complex) variable and passed as an argument to
+some intrinsic functions.  Example:
+	complex a, b
+	r = sqrt(real(conjg(a))) + sqrt(real(a*b))
+	end
+
+Thu Jul 11 17:27:16 EDT 1996
+  Fix a memory fault associated with complicated, illegal input.
+Example:
+	subroutine goo
+	character a
+	call foo(a)	! inconsistent with subsequent def and call
+	end
+	subroutine foo(a)
+	end
+	call foo(a)
+	end
+
+Wed Jul 17 19:18:28 EDT 1996
+  Fix yet another case of intrinsic "real" applied to a complex
+argument.  Example:
+	complex a(3)
+	x = sqrt(real(a(2)))	! gave error message about bad tag
+	end
+
+Mon Aug 26 11:28:57 EDT 1996
+  Tweak sysdep.c for non-Unix systems in which process ID's can be
+over 5 digits long.
+
+Tue Aug 27 08:31:32 EDT 1996
+  Adjust the ishft intrinsic to use unsigned right shifts.  (Previously,
+a negative constant second operand resulted in a possibly signed shift.)
+
+Thu Sep 12 14:04:07 EDT 1996
+  equiv.c: fix glitch with -DKR_headers.
+  libi77: fmtlib.c: fix bug in printing the most negative integer.
+
+Fri Sep 13 08:54:40 EDT 1996
+  Diagnose some illegal appearances of substring notation.
+
+Tue Sep 17 17:48:09 EDT 1996
+  Fix fault in handling some complex parameters.  Example:
+	subroutine foo(a)
+	double complex a, b
+	parameter(b = (0,1))
+	a = b	! f2c faulted here
+	end
+
+Thu Sep 26 07:47:10 EDT 1996
+  libi77:  fmt.h:  for formatted writes of negative integer*1 values,
+make ic signed on ANSI systems.  If formatted writes of integer*1
+values trouble you when using a K&R C compiler, switch to an ANSI
+compiler or use a compiler flag that makes characters signed.
+
+Tue Oct  1 14:41:36 EDT 1996
+  Give a better error message when dummy arguments appear in data
+statements.
+
+Thu Oct 17 13:37:22 EDT 1996
+  Fix bug in typechecking arguments to character and complex (or
+double complex) functions; the bug could cause length arguments
+for character arguments to be omitted on invocations appearing
+textually after the first invocation.  For example, in
+	subroutine foo
+	character c
+	complex zot
+	call goo(zot(c), zot(c))
+	end
+the length was omitted from the second invocation of zot, and
+there was an erroneous error message about inconsistent calling
+sequences.
+
+Wed Dec  4 13:59:14 EST 1996
+  Fix bug revealed by
+	subroutine test(cdum,rdum)
+	complex cdum
+	rdum=cos(real(cdum))	! "Unexpected tag 3 in opconv_fudge"
+	end
+  Fix glitch in parsing "DO 10 D0 = 1, 10".
+  Fix glitch in parsing
+	real*8 x
+	real*8 x	! erroneous "incompatible type" message
+	call foo(x)
+	end
+  lib[FI]77/makefile: add comment about omitting -x under Solaris.
+
+Mon Dec  9 23:15:02 EST 1996
+  Fix glitch in parameter adjustments for arrays whose lower
+bound depends on a scalar argument.  Example:
+	subroutine bug(p,z,m,n)
+	integer z(*),m,n
+	double precision p(z(m):z(m) + n)	! p_offset botched
+	call foo(p(0), p(n))
+	end
+  libi77: complain about non-positive rec= in direct read and write
+statements.
+  libf77: trivial adjustments; Version.c not changed.
+
+Wed Feb 12 00:18:03 EST 1997
+  output.c: fix (seldom problematic) glitch in out_call: put parens
+around the ... in a test of the form "if (q->tag == TADDR && ...)".
+  vax.c: fix bug revealed in the "psi_offset =" assignment in the
+following example:
+	subroutine foo(psi,m)
+	integer z(100),m
+	common /a/ z
+	double precision psi(z(m):z(m) + 10)
+	call foo(m+1, psi(0),psi(10))
+	end
+
+Mon Feb 24 23:44:54 EST 1997
+  For consistency with f2c's current treatment of adjacent character
+strings in FORMAT statements, recognize a Hollerith string following
+a string (and merge adjacent strings in FORMAT statements).
+
+Wed Feb 26 13:41:11 EST 1997
+  New libf2c.zip, a combination of the libf77 and libi77 bundles (and
+available only by ftp).
+  libf77: adjust functions with a complex output argument to permit
+aliasing it with input arguments.  (For now, at least, this is just
+for possible benefit of g77.)
+  libi77: tweak to ftell_.c for systems with strange definitions of
+SEEK_SET, etc.
+
+Tue Apr  8 20:57:08 EDT 1997
+  libf77: [cz]_div.c: tweaks invisible on most systems (that may
+improve things slightly with optimized compilation on systems that use
+gratuitous extra precision).
+  libi77: fmt.c: adjust to complain at missing numbers in formats
+(but still treat missing ".nnn" as ".0").
+
+Fri Apr 11 14:05:57 EDT 1997
+  libi77: err.c: attempt to make stderr line buffered rather than
+fully buffered.  (Buffering is needed for format items T and TR.)
+
+Thu Apr 17 22:42:43 EDT 1997
+ libf77: add F77_aloc.o to makefile (and makefile.u in libf2c.zip).
+
+Fri Apr 25 19:32:09 EDT 1997
+ libf77: add [de]time_.c (which may give trouble on some systems).
+
+Tue May 27 09:18:52 EDT 1997
+ libi77: ftell_.c: fix typo that caused the third argument to be
+treated as 2 on some systems.
+
+Mon Jun  9 00:04:37 EDT 1997
+ libi77 (and libf2c.zip): adjust include order in err.c lread.c wref.c
+rdfmt.c to include fmt.h (etc.) after system includes.  Version.c not
+changed.
+
+Mon Jun  9 14:29:13 EDT 1997
+ src/gram.c updated; somehow it did not reflect the change of
+19961001 to gram.dcl.
+
+Mon Jul 21 16:04:54 EDT 1997
+  proc.c: fix glitch in logic for "nonpositive dimension" message.
+  libi77: inquire.c: always include string.h (for possible use with
+-DNON_UNIX_STDIO); Version.c not changed.
+
+Thu Jul 24 17:11:23 EDT 1997
+  Tweak "Notice" to reflect the AT&T breakup -- we missed it when
+updating the copyright notices in the source files last summer.
+  Adjust src/makefile so malloc.o is not used by default, but can
+be specified with "make MALLOC=malloc.o".
+  Add comments to src/README about the "CRAY" T3E.
+
+Tue Aug  5 14:53:25 EDT 1997
+  Add definition of calloc to malloc.c; this makes f2c's malloc
+work on some systems where trouble hitherto arose because references
+to calloc brought in the system's malloc.  (On sensible systems,
+calloc is defined separately from malloc.  To avoid confusion on
+other systems, f2c/malloc.c now defines calloc.)
+  libi77: lread.c: adjust to accord with a change to the Fortran 8X
+draft (in 1990 or 1991) that rescinded permission to elide quote marks
+in namelist input of character data; to get the old behavior, compile
+with F8X_NML_ELIDE_QUOTES #defined.  wrtfmt.o: wrt_G: tweak to print
+the right number of 0's for zero under G format.
+
+Sat Aug 16 05:45:32 EDT 1997
+  libi77: iio.c: fix bug in internal writes to an array of character
+strings that sometimes caused one more array element than required by
+the format to be blank-filled.  Example: format(1x).
+
+Wed Sep 17 00:39:29 EDT 1997
+  libi77: fmt.[ch] rdfmt.c wrtfmt.c: tweak struct syl for machines
+with 64-bit pointers and 32-bit ints that did not 64-bit align
+struct syl (e.g., Linux on the DEC Alpha).  This change should be
+invisible on other machines.
+
+Sun Sep 21 22:05:19 EDT 1997
+  libf77: [de]time_.c (Unix systems only): change return type to double.
+
+Thu Dec  4 22:10:09 EST 1997
+  Fix bug with handling large blocks of comments (over 4k); parts of the
+second and subsequent blocks were likely to be lost (not copied into
+comments in the resulting C).  Allow comment lines to be longer before
+breaking them.
+
+Mon Jan 19 17:19:27 EST 1998
+  makefile: change the rule for making gram.c to one for making gram1.c;
+henceforth, asking netlib to "send all from f2c/src" will bring you a
+working gram.c.  Nowadays there are simply too many broken versions of
+yacc floating around.
+  libi77: backspace.c: for b->ufmt==0, change sizeof(int) to
+sizeof(uiolen).  On machines where this would make a difference, it is
+best for portability to compile libI77 with -DUIOLEN_int, which will
+render the change invisible.
+
+Tue Feb 24 08:35:33 EST 1998
+  makefile: remove gram.c from the "make clean" rule.
+
+Wed Feb 25 08:29:39 EST 1998
+  makefile: change CFLAGS assignment to -O; add "veryclean" rule.
+
+Wed Mar  4 13:13:21 EST 1998
+  libi77: open.c: fix glitch in comparing file names under
+-DNON_UNIX_STDIO.
+
+Mon Mar  9 23:56:56 EST 1998
+  putpcc.c: omit an unnecessary temporary variable in computing
+(expr)**3.
+  libf77, libi77: minor tweaks to make some C++ compilers happy;
+Version.c not changed.
+
+Wed Mar 18 18:08:47 EST 1998
+  libf77: minor tweaks to [ed]time_.c; Version.c not changed.
+  libi77: endfile.c, open.c: acquire temporary files from tmpfile(),
+unless compiled with -DNON_ANSI_STDIO, which uses mktemp().
+New buffering scheme independent of NON_UNIX_STDIO for handling T
+format items.  Now -DNON_UNIX_STDIO is no longer be necessary for
+Linux, and libf2c no longer causes stderr to be buffered -- the former
+setbuf or setvbuf call for stderr was to make T format items work.
+open.c: use the Posix access() function to check existence or
+nonexistence of files, except under -DNON_POSIX_STDIO, where trial
+fopen calls are used.  In open.c, fix botch in changes of 19980304.
+  libf2c.zip: the PC makefiles are now set for NT/W95, with comments
+about changes for DOS.
+
+Fri Apr  3 17:22:12 EST 1998
+  Adjust fix of 19960913 to again permit substring notation on
+character variables in data statements.
+
+Sun Apr  5 19:26:50 EDT 1998
+  libi77: wsfe.c: make $ format item work: this was lost in the changes
+of 17 March 1998.
+
+Sat May 16 19:08:51 EDT 1998
+  Adjust output of ftnlen constants: rather than appending L,
+prepend (ftnlen).  This should make the resulting C more portable,
+e.g., to systems (such as DEC Alpha Unix systems) on which long
+may be longer than ftnlen.
+  Adjust -r so it also casts REAL expressions passed to intrinsic
+functions to REAL.
+
+Wed May 27 16:02:35 EDT 1998
+  libf2c.zip: tweak description of compiling libf2c for INTEGER*8
+to accord with makefile.u rather than libF77/makefile.
+
+Thu May 28 22:45:59 EDT 1998
+  libi77: backspace.c dfe.c due.c iio.c lread.c rsfe.c sue.c wsfe.c:
+set f__curunit sooner so various error messages will correctly
+identify the I/O unit involved.
+  libf2c.zip: above, plus tweaks to PC makefiles: for some purposes,
+it's still best to compile with -DMSDOS (even for use with NT).
+
+Thu Jun 18 01:22:52 EDT 1998
+  libi77: lread.c: modified so floating-point numbers (containing
+either a decimal point or an exponent field) are treated as errors
+when they appear as list input for integer data.  Compile lread.c with
+-DALLOW_FLOAT_IN_INTEGER_LIST_INPUT to restore the old behavior.
+
+Current timestamps of files in "all from f2c/src", sorted by time,
+appear below (mm/dd/year hh:mm:ss).  To bring your source up to date,
+obtain source files with a timestamp later than the time shown in your
+version.c.  Note that the time shown in the current version.c is the
+timestamp of the source module that immediately follows version.c below:
+
+ 5/16/1998  19:07:45  xsum0.out
+ 5/16/1998  17:17:01  f2c.1
+ 5/16/1998  17:16:53  f2c.1t
+ 5/16/1998  16:56:15  version.c
+ 5/16/1998  16:55:49  output.c
+ 4/03/1998  17:15:05  gram.c
+ 4/03/1998  17:14:59  gram.dcl
+ 3/09/1998   0:30:23  putpcc.c
+ 2/25/1998   8:18:04  makefile
+12/04/1997  17:44:11  format.c
+12/04/1997  17:44:11  niceprintf.c
+12/04/1997  17:14:05  lex.c
+ 8/05/1997  10:31:26  malloc.c
+ 7/24/1997  17:10:55  README
+ 7/24/1997  16:06:19  Notice
+ 7/21/1997  12:58:44  proc.c
+ 2/11/1997  23:39:14  vax.c
+12/04/1996  13:07:53  gram.exec
+10/01/1996  14:36:18  defs.h
+10/01/1996  14:36:18  init.c
+10/01/1996  14:36:17  data.c
+ 9/17/1996  17:29:44  expr.c
+ 9/12/1996  12:12:46  equiv.c
+ 8/27/1996   8:30:32  intr.c
+ 8/26/1996   9:41:13  sysdep.c
+ 7/09/1996  10:40:45  names.c
+ 7/04/1996   9:58:31  formatdata.c
+ 7/04/1996   9:55:45  sysdep.h
+ 7/04/1996   9:55:43  put.c
+ 7/04/1996   9:55:41  pread.c
+ 7/04/1996   9:55:40  parse_args.c
+ 7/04/1996   9:55:40  p1output.c
+ 7/04/1996   9:55:37  misc.c
+ 7/04/1996   9:55:36  memset.c
+ 7/04/1996   9:55:36  mem.c
+ 7/04/1996   9:55:35  main.c
+ 7/04/1996   9:55:33  io.c
+ 7/04/1996   9:55:30  exec.c
+ 7/04/1996   9:55:29  error.c
+ 7/04/1996   9:55:27  cds.c
+ 7/03/1996  15:47:49  xsum.c
+ 6/19/1996   7:04:27  f2c.h
+ 6/19/1996   2:52:05  defines.h
+ 5/13/1996   0:40:32  gram.head
+ 2/25/1994   2:07:19  parse.h
+ 2/22/1994  19:07:20  iob.h
+ 2/22/1994  18:56:53  p1defs.h
+ 2/22/1994  18:53:46  output.h
+ 2/22/1994  18:51:14  names.h
+ 2/22/1994  18:30:41  format.h
+ 1/18/1994  18:12:52  tokens
+ 3/06/1993  14:13:58  gram.expr
+ 1/28/1993   9:03:16  ftypes.h
+ 4/06/1990   0:00:57  gram.io
+ 2/03/1990   0:58:26  niceprintf.h
+ 1/07/1990   1:20:01  usignal.h
+11/27/1989   8:27:37  machdefs.h
+ 7/01/1989  11:59:44  pccdefs.h