Virgin import of EGCS 1.1.2's libf2c

1 files changed, 2929 insertions, 0 deletions

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+31 Aug. 1989:
+   1. A(min(i,j)) now is translated correctly (where A is an array).
+   2. 7 and 8 character variable names are allowed (but elicit a
+      complaint under -ext).
+   3. LOGICAL*1 is treated as LOGICAL, with just one error message
+      per LOGICAL*1 statement (rather than one per variable declared
+      in that statement).  [Note that LOGICAL*1 is not in Fortran 77.]
+      Like f77, f2c now allows the format in a read or write statement
+      to be an integer array.
+
+5 Sept. 1989:
+   Fixed botch in argument passing of substrings of equivalenced
+variables.
+
+15 Sept. 1989:
+   Warn about incorrect code generated when a character-valued
+function is not declared external and is passed as a parameter
+(in violation of the Fortran 77 standard) before it is invoked.
+Example:
+
+	subroutine foo(a,b)
+	character*10 a,b
+	call goo(a,b)
+	b = a(3)
+	end
+
+18 Sept. 1989:
+   Complain about overlapping initializations.
+
+20 Sept. 1989:
+   Warn about names declared EXTERNAL but never referenced;
+include such names as externs in the generated C (even
+though most C compilers will discard them).
+
+24 Sept. 1989:
+   New option -w8 to suppress complaint when COMMON or EQUIVALENCE
+forces word alignment of a double.
+   Under -A (for ANSI C), ensure that floating constants (terminated
+by 'f') contain either a decimal point or an exponent field.
+   Repair bugs sometimes encountered with CHAR and ICHAR intrinsic
+functions.
+   Restore f77's optimizations for copying and comparing character
+strings of length 1.
+   Always assume floating-point valued routines in libF77 return
+doubles, even under -R.
+   Repair occasional omission of arguments in routines having multiple
+entry points.
+   Repair bugs in computing offsets of character strings involved
+in EQUIVALENCE.
+   Don't omit structure qualification when COMMON variables are used
+as FORMATs or internal files.
+
+2 Oct. 1989:
+   Warn about variables that appear only in data stmts; don't emit them.
+   Fix bugs in character DATA for noncharacter variables
+involved in EQUIVALENCE.
+   Treat noncharacter variables initialized (at least partly) with
+character data as though they were equivalenced -- put out a struct
+and #define the variables.  This eliminates the hideous and nonportable
+numeric values that were used to initialize such variables.
+   Treat IMPLICIT NONE as IMPLICIT UNDEFINED(A-Z) .
+   Quit when given invalid options.
+
+8 Oct. 1989:
+  Modified naming scheme for generated intermediate variables;
+more are recycled, fewer distinct ones used.
+  New option -W nn specifies nn characters/word for Hollerith
+data initializing non-character variables.
+  Bug fix: x(i:min(i+10,j)) used to elicit "Can't handle opcode 31 yet".
+  Integer expressions of the form (i+const1) - (i+const2), where
+i is a scalar integer variable, are now simplified to (const1-const2);
+this leads to simpler translation of some substring expressions.
+  Initialize uninitialized portions of character string arrays to 0
+rather than to blanks.
+
+9 Oct. 1989:
+  New option -c to insert comments showing original Fortran source.
+  New option -g to insert line numbers of original Fortran source.
+
+10 Oct. 1989:
+  ! recognized as in-line comment delimiter (a la Fortran 88).
+
+24 Oct. 1989:
+  New options to ease coping with systems that want the structs
+that result from COMMON blocks to be defined just once:
+  -E causes uninitialized COMMON blocks to be declared Extern;
+if Extern is undefined, f2c.h #defines it to be extern.
+  -ec causes a separate .c file to be emitted for each
+uninitialized COMMON block: COMMON /ABC/ yields abc_com.c;
+thus one can compile *_com.c into a library to ensure
+precisely one definition.
+  -e1c is similar to -ec, except that everything goes into
+one file, along with comments that give a sed script for
+splitting the file into the pieces that -ec would give.
+This is for use with netlib's "execute f2c" service (for which
+-ec is coerced into -e1c, and the sed script will put everything
+but the COMMON definitions into f2c_out.c ).
+
+28 Oct. 1989:
+  Convert "i = i op ..." into "i op= ...;" even when i is a
+dummy argument.
+
+13 Nov. 1989:
+  Name integer constants (passed as arguments) c__... rather
+than c_... so
+	common /c/stuff
+	call foo(1)
+	...
+is translated correctly.
+
+19 Nov. 1989:
+  Floating-point constants are now kept as strings unless they
+are involved in constant expressions that get simplified.  The
+floating-point constants kept as strings can have arbitrarily
+many significant figures and a very large exponent field (as
+large as long int allows on the machine on which f2c runs).
+Thus, for example, the body of
+
+	subroutine zot(x)
+	double precision x(6), pi
+	parameter (pi=3.1415926535897932384626433832795028841972)
+	x(1) = pi
+	x(2) = pi+1
+	x(3) = 9287349823749272.7429874923740978492734D-298374
+	x(4) = .89
+	x(5) = 4.0005
+	x(6) = 10D7
+	end
+
+now gets translated into
+
+    x[1] = 3.1415926535897932384626433832795028841972;
+    x[2] = 4.1415926535897931;
+    x[3] = 9.2873498237492727429874923740978492734e-298359;
+    x[4] = (float).89;
+    x[5] = (float)4.0005;
+    x[6] = 1e8;
+
+rather than the former
+
+    x[1] = 3.1415926535897931;
+    x[2] = 4.1415926535897931;
+    x[3] = 0.;
+    x[4] = (float)0.89000000000000003;
+    x[5] = (float)4.0004999999999997;
+    x[6] = 100000000.;
+
+  Recognition of f77 machine-constant intrinsics deleted, i.e.,
+epbase, epprec, epemin, epemax, eptiny, ephuge, epmrsp.
+
+22 Nov. 1989:
+  Workarounds for glitches on some Sun systems...
+  libf77: libF77/makefile modified to point out possible need
+to compile libF77/main.c with -Donexit=on_exit .
+  libi77: libI77/wref.c (and libI77/README) modified so non-ANSI
+systems can compile with USE_STRLEN defined, which will cause
+	sprintf(b = buf, "%#.*f", d, x);
+	n = strlen(b) + d1;
+rather than
+	n = sprintf(b = buf, "%#.*f", d, x) + d1;
+to be compiled.
+
+26 Nov. 1989:
+  Longer names are now accepted (up to 50 characters); names may
+contain underscores (in which case they will have two underscores
+appended, to avoid clashes with library names).
+
+28 Nov. 1989:
+  libi77 updated:
+	1. Allow 3 (or, on Crays, 4) digit exponents under format Ew.d .
+	2. Try to get things right on machines where ints have 16 bits.
+
+29 Nov. 1989:
+  Supplied missing semicolon in parameterless subroutines that
+have multiple entry points (all of them parameterless).
+
+30 Nov. 1989:
+  libf77 and libi77 revised to use types from f2c.h.
+  f2c now types floating-point valued C library routines as "double"
+rather than "doublereal" (for use with nonstandard C compilers for
+which "double" is IEEE double extended).
+
+1 Dec. 1989:
+  f2c.h updated to eliminate #defines rendered unnecessary (and,
+indeed, dangerous) by change of 26 Nov. to long names possibly
+containing underscores.
+  libi77 further revised: yesterday's change omitted two tweaks to fmt.h
+(tweaks which only matter if float and real or double and doublereal are
+different types).
+
+2 Dec. 1989:
+  Better error message (than "bad tag") for NAMELIST, which no longer
+inhibits C output.
+
+4 Dec. 1989:
+  Allow capital letters in hex constants (f77 extension; e.g.,
+x'a012BCd', X'A012BCD' and x'a012bcd' are all treated as the integer
+167848909).
+  libi77 further revised: lio.c lio.h lread.c wref.c wrtfmt.c tweaked
+again to allow float and real or double and doublereal to be different.
+
+6 Dec. 1989:
+  Revised f2c.h -- required for the following...
+  Simpler looking translations for abs, min, max, using #defines in
+revised f2c.h .
+  libi77: more corrections to types; additions for NAMELIST.
+  Corrected casts in some I/O calls.
+  Translation of NAMELIST; libi77 must still be revised.  Currently
+libi77 gives you a run-time error message if you attempt NAMELIST I/O.
+
+7 Dec. 1989:
+  Fixed bug that prevented local integer variables that appear in DATA
+stmts from being ASSIGNed statement labels.
+  Fillers (for DATA statements initializing EQUIVALENCEd variables and
+variables in COMMON) typed integer rather than doublereal (for slightly
+more portability, e.g. to Crays).
+  libi77: missing return values supplied in a few places; some tests
+reordered for better working on the Cray.
+  libf77: better accuracy for complex divide, complex square root,
+real mod function (casts to double; double temporaries).
+
+9 Dec. 1989:
+  Fixed bug that caused needless (albeit harmless) empty lines to be
+inserted in the C output when a comment line contained trailing blanks.
+  Further tweak to type of fillers: allow doublereal fillers if the
+struct has doublereal data.
+
+11 Dec. 1989:
+  Alteration of rule for producing external (C) names from names that
+contain underscores.  Now the external name is always obtained by
+appending a pair of underscores.
+
+12 Dec. 1989:
+  C production inhibited after most errors.
+
+15 Dec. 1989:
+  Fixed bug in headers for subroutines having two or more character
+strings arguments:  the length arguments were reversed.
+
+19 Dec. 1989:
+  f2c.h libf77 libi77: adjusted so #undefs in f2c.h should not foil
+compilation of libF77 and libI77.
+  libf77: getenv_ adjusted to work with unsorted environments.
+  libi77: the iostat= specifier should now work right with internal I/O.
+
+20 Dec. 1989:
+  f2c bugs fixed: In the absence of an err= specifier, the iostat=
+specifier was generally set wrong.  Character strings containing
+explicit nulls (\0) were truncated at the first null.
+  Unlabeled DO loops recognized; must be terminated by ENDDO.
+(Don't ask for CYCLE, EXIT, named DO loops, or DO WHILE.)
+
+29 Dec. 1989:
+  Nested unlabeled DO loops now handled properly; new warning for
+extraneous text at end of FORMAT.
+
+30 Dec. 1989:
+  Fixed bug in translating dble(real(...)), dble(sngl(...)), and
+dble(float(...)), where ... is either of type double complex or
+is an expression requiring assignment to intermediate variables (e.g.,
+dble(real(foo(x+1))), where foo is a function and x is a variable).
+Regard nonblank label fields on continuation lines as an error.
+
+3 Jan. 1990:
+  New option -C++ yields output that should be understood
+by C++ compilers.
+
+6 Jan. 1989:
+  -a now excludes variables that appear in a namelist from those
+that it makes automatic.  (As before, it also excludes variables
+that appear in a common, data, equivalence, or save statement.)
+  The syntactically correct Fortran
+	read(*,i) x
+	end
+now yields syntactically correct C (even though both the Fortran
+and C are buggy -- no FORMAT has not been ASSIGNed to i).
+
+7 Jan. 1990:
+  libi77: routines supporting NAMELIST added.  Surrounding quotes
+made optional when no ambiguity arises in a list or namelist READ
+of a character-string value.
+
+9 Jan. 1990:
+  f2c.src made available.
+
+16 Jan. 1990:
+  New options -P to produce ANSI C or C++ prototypes for procedures
+defined.  Change to -A and -C++: f2c tries to infer prototypes for
+invoked procedures unless the new -!P option is given.  New warning
+messages for inconsistent calling sequences among procedures within
+a single file.  Most of f2c/src is affected.
+  f2c.h: typedefs for procedure arguments added; netlib's f2c service
+will insert appropriate typedefs for use with older versions of f2c.h.
+
+17 Jan. 1990:
+  f2c/src: defs.h exec.c format.c proc.c putpcc.c version.c xsum0.out
+updated.  Castargs and protofile made extern in defs.h; exec.c
+modified so superfluous else clauses are diagnosed; unused variables
+omitted from declarations in format.c proc.c putpcc.c .
+
+21 Jan. 1990:
+  No C emitted for procedures declared external but not referenced.
+  f2c.h: more new types added for use with -P.
+  New feature: f2c accepts as arguments files ending in .p or .P;
+such files are assumed to be prototype files, such as produced by
+the -P option.  All prototype files are read before any Fortran files
+and apply globally to all Fortran files.  Suitable prototypes help f2c
+warn about calling-sequence errors and can tell f2c how to type
+procedures declared external but not explicitly typed; the latter is
+mainly of interest for users of the -A and -C++ options.  (Prototype
+arguments are not available to netlib's "execute f2c" service.)
+  New option -it tells f2c to try to infer types of untyped external
+arguments from their use as parameters to prototyped or previously
+defined procedures.
+  f2c/src: many minor cleanups; most modules changed.  Individual
+files in f2c/src are now in "bundle" format.  The former f2c.1 is
+now f2c.1t; "f2c.1t from f2c" and "f2c.1t from f2c/src" are now the
+same, as are "f2c.1 from f2c" and "f2c.1 from f2c/src".  People who
+do not obtain a new copy of "all from f2c/src" should at least add
+	fclose(sortfp);
+after the call on do_init_data(outfile, sortfp) in format_data.c .
+
+22 Jan. 1990:
+  Cleaner man page wording (thanks to Doug McIlroy).
+  -it now also applies to all untyped EXTERNAL procedures, not just
+arguments.
+
+23 Jan. 01:34:00 EST 1990:
+  Bug fixes: under -A and -C++, incorrect C was generated for
+subroutines having multiple entries but no arguments.
+  Under -A -P, subroutines of no arguments were given prototype
+calling sequence () rather than (void).
+  Character-valued functions elicited erroneous warning messages
+about inconsistent calling sequences when referenced by another
+procedure in the same file.
+  f2c.1t: omit first appearance of libF77.a in FILES section;
+load order of libraries is -lF77 -lI77, not vice versa (bug
+introduced in yesterday's edits); define .F macro for those whose
+-man lacks it.  (For a while after yesterday's fixes were posted,
+f2c.1t was out of date.  Sorry!)
+
+23 Jan. 9:53:24 EST 1990:
+  Character substring expressions involving function calls having
+character arguments (including the intrinsic len function) yielded
+incorrect C.
+  Procedures defined after invocation (in the same file) with
+conflicting argument types also got an erroneous message about
+the wrong number of arguments.
+
+24 Jan. 11:44:00 EST 1990:
+  Bug fixes: -p omitted #undefs; COMMON block names containing
+underscores had their C names incorrectly computed; a COMMON block
+having the name of a previously defined procedure wreaked havoc;
+if all arguments were .P files, f2c tried reading the second as a
+Fortran file.
+  New feature: -P emits comments showing COMMON block lengths, so one
+can get warnings of incompatible COMMON block lengths by having f2c
+read .P (or .p) files.  Now by running f2c twice, first with -P -!c
+(or -P!c),  then with *.P among the arguments, you can be warned of
+inconsistent COMMON usage, and COMMON blocks having inconsistent
+lengths will be given the maximum length.  (The latter always did
+happen within each input file; now -P lets you extend this behavior
+across files.)
+
+26 Jan. 16:44:00 EST 1990:
+  Option -it made less aggressive: untyped external procedures that
+are invoked are now typed by the rules of Fortran, rather than by
+previous use of procedures to which they are passed as arguments
+before being invoked.
+  Option -P now includes information about references, i.e., called
+procedures, in the prototype files (in the form of special comments).
+This allows iterative invocations of f2c to infer more about untyped
+external names, particularly when multiple Fortran files are involved.
+  As usual, there are some obscure bug fixes:
+1.  Repair of erroneous warning messages about inconsistent number of
+arguments that arose when a character dummy parameter was discovered
+to be a function or when multiple entry points involved character
+variables appearing in a previous entry point.
+2.  Repair of memory fault after error msg about "adjustable character
+function".
+3.  Under -U, allow MAIN_ as a subroutine name (in the same file as a
+main program).
+4.  Change for consistency: a known function invoked as a subroutine,
+then as a function elicits a warning rather than an error.
+
+26 Jan. 22:32:00 EST 1990:
+  Fixed two bugs that resulted in incorrect C for substrings, within
+the body of a character-valued function, of the function's name, when
+those substrings were arguments to another function (even implicitly,
+as in character-string assignment).
+
+28 Jan. 18:32:00 EST 1990:
+  libf77, libi77: checksum files added; "make check" looks for
+transmission errors.  NAMELIST read modified to allow $ rather than &
+to precede a namelist name, to allow $ rather than / to terminate
+input where the name of another variable would otherwise be expected,
+and to regard all nonprinting ASCII characters <= ' ' as spaces.
+
+29 Jan. 02:11:00 EST 1990:
+  "fc from f2c" added.
+  -it option made the default; -!it turns it off.  Type information is
+now updated in a previously missed case.
+  -P option tweaked again; message about when rerunning f2c may change
+prototypes or declarations made more accurate.
+  New option -Ps implies -P and returns exit status 4 if rerunning
+f2c -P with prototype inputs might change prototypes or declarations.
+Now you can execute a crude script like
+
+	cat *.f >zap.F
+	rm -f zap.P
+	while :; do
+		f2c -Ps -!c zap.[FP]
+		case $? in 4) ;; *) break;; esac
+		done
+
+to get a file zap.P of the best prototypes f2c can determine for *.f .
+
+Jan. 29 07:30:21 EST 1990:
+  Forgot to check for error status when setting return code 4 under -Ps;
+error status (1, 2, 3, or, for caught signal, 126) now takes precedence.
+
+Jan 29 14:17:00 EST 1990:
+  Incorrect handling of
+	open(n,'filename')
+repaired -- now treated as
+	open(n,file='filename')
+(and, under -ext, given an error message).
+  New optional source file memset.c for people whose systems don't
+provide memset, memcmp, and memcpy; #include <string.h> in mem.c
+changed to #include "string.h" so BSD people can create a local
+string.h that simply says #include <strings.h> .
+
+Jan 30 10:34:00 EST 1990:
+  Fix erroneous warning at end of definition of a procedure with
+character arguments when the procedure had previously been called with
+a numeric argument instead of a character argument.  (There were two
+warnings, the second one incorrectly complaining of a wrong number of
+arguments.)
+
+Jan 30 16:29:41 EST 1990:
+  Fix case where -P and -Ps erroneously reported another iteration
+necessary.  (Only harm is the extra iteration.)
+
+Feb 3 01:40:00 EST 1990:
+  Supply semicolon occasionally omitted under -c .
+  Try to force correct alignment when numeric variables are initialized
+with character data (a non-standard and non-portable practice).  You
+must use the -W option if your code has such data statements and is
+meant to run on a machine with other than 4 characters/word; e.g., for
+code meant to run on a Cray, you would specify -W8 .
+  Allow parentheses around expressions in output lists (in write and
+print statements).
+  Rename source files so their names are <= 12 characters long
+(so there's room to append .Z and still have <= 14 characters);
+renamed files:  formatdata.c niceprintf.c niceprintf.h safstrncpy.c .
+  f2c material made available by anonymous ftp from research.att.com
+(look in dist/f2c ).
+
+Feb 3 03:49:00 EST 1990:
+  Repair memory fault that arose from use (in an assignment or
+call) of a non-argument variable declared CHARACTER*(*).
+
+Feb 9 01:35:43 EST 1990:
+  Fix erroneous error msg about bad types in
+	subroutine foo(a,adim)
+	dimension a(adim)
+	integer adim
+  Fix improper passing of character args (and possible memory fault)
+in the expression part of a computed goto.
+  Fix botched calling sequences in array references involving
+functions having character args.
+  Fix memory fault caused by invocation of character-valued functions
+of no arguments.
+  Fix botched calling sequence of a character*1-valued function
+assigned to a character*1 variable.
+  Fix bug in error msg for inconsistent number of args in prototypes.
+  Allow generation of C output despite inconsistencies in prototypes,
+but give exit code 8.
+  Simplify include logic (by removing some bogus logic); never
+prepend "/usr/include/" to file names.
+  Minor cleanups (that should produce no visible change in f2c's
+behavior) in intr.c parse.h main.c defs.h formatdata.c p1output.c .
+
+Feb 10 00:19:38 EST 1990:
+  Insert (integer) casts when floating-point expressions are used
+as subscripts.
+  Make SAVE stmt (with no variable list) override -a .
+  Minor cleanups: change field to Field in struct Addrblock (for the
+benefit of buggy C compilers); omit system("/bin/cp ...") in misc.c .
+
+Feb 13 00:39:00 EST 1990:
+  Error msg fix in gram.dcl: change "cannot make %s parameter"
+to "cannot make into parameter".
+
+Feb 14 14:02:00 EST 1990:
+  Various cleanups (invisible on systems with 4-byte ints), thanks
+to Dave Regan: vaxx.c eliminated; %d changed to %ld various places;
+external names adjusted for the benefit of stupid systems (that ignore
+case and recognize only 6 significant characters in external names);
+buffer shortened in xsum.c (e.g. for MS-DOS); fopen modes distinguish
+text and binary files; several unused functions eliminated; missing
+arg supplied to an unlikely fatalstr invocation.
+
+Thu Feb 15 19:15:53 EST 1990:
+  More cleanups (invisible on systems with 4 byte ints); casts inserted
+so most complaints from cyntax(1) and lint(1) go away; a few (int)
+versus (long) casts corrected.
+
+Fri Feb 16 19:55:00 EST 1990:
+  Recognize and translate unnamed Fortran 8x do while statements.
+  Fix bug that occasionally caused improper breaking of character
+strings.
+  New error message for attempts to provide DATA in a type-declaration
+statement.
+
+Sat Feb 17 11:43:00 EST 1990:
+  Fix infinite loop clf -> Fatal -> done -> clf after I/O error.
+  Change "if (addrp->vclass = CLPROC)" to "if (addrp->vclass == CLPROC)"
+in p1_addr (in p1output.c); this was probably harmless.
+  Move a misplaced } in lex.c (which slowed initkey()).
+  Thanks to Gary Word for pointing these things out.
+
+Sun Feb 18 18:07:00 EST 1990:
+  Detect overlapping initializations of arrays and scalar variables
+in previously missed cases.
+  Treat logical*2 as logical (after issuing a warning).
+  Don't pass string literals to p1_comment().
+  Correct a cast (introduced 16 Feb.) in gram.expr; this matters e.g.
+on a Cray.
+  Attempt to isolate UNIX-specific things in sysdep.c (a new source
+file).  Unless sysdep.c is compiled with SYSTEM_SORT defined, the
+intermediate files created for DATA statements are now sorted in-core
+without invoking system().
+
+Tue Feb 20 16:10:35 EST 1990:
+  Move definition of binread and binwrite from init.c to sysdep.c .
+  Recognize Fortran 8x tokens < <= == >= > <> as synonyms for
+.LT. .LE. .EQ. .GE. .GT. .NE.
+  Minor cleanup in putpcc.c:  fully remove simoffset().
+  More discussion of system dependencies added to libI77/README.
+
+Tue Feb 20 21:44:07 EST 1990:
+  Minor cleanups for the benefit of EBCDIC machines -- try to remove
+the assumption that 'a' through 'z' are contiguous.  (Thanks again to
+Gary Word.)  Also, change log2 to log_2 (shouldn't be necessary).
+
+Wed Feb 21 06:24:56 EST 1990:
+  Fix botch in init.c introduced in previous change; only matters
+to non-ASCII machines.
+
+Thu Feb 22 17:29:12 EST 1990:
+  Allow several entry points to mention the same array.  Protect
+parameter adjustments with if's (for the case that an array is not
+an argument to all entrypoints).
+  Under -u, allow
+	subroutine foo(x,n)
+	real x(n)
+	integer n
+  Compute intermediate variables used to evaluate dimension expressions
+at the right time.  Example previously mistranslated:
+	subroutine foo(x,k,m,n)
+	real x(min(k,m,n))
+	...
+	write(*,*) x
+  Detect duplicate arguments.  (The error msg points to the first
+executable stmt -- not wonderful, but not worth fixing.)
+  Minor cleanup of min/max computation (sometimes slightly simpler).
+
+Sun Feb 25 09:39:01 EST 1990:
+  Minor tweak to multiple entry points: protect parameter adjustments
+with if's only for (array) args that do not appear in all entry points.
+  Minor tweaks to format.c and io.c (invisible unless your compiler
+complained at the duplicate #defines of IOSUNIT and IOSFMT or at
+comparisons of p1gets(...) with NULL).
+
+Sun Feb 25 18:40:10 EST 1990:
+  Fix bug introduced Feb. 22: if a subprogram contained DATA and the
+first executable statement was labeled, then the label got lost.
+(Just change INEXEC to INDATA in p1output.c; it occurs just once.)
+
+Mon Feb 26 17:45:10 EST 1990:
+  Fix bug in handling of " and ' in comments.
+
+Wed Mar 28 01:43:06 EST 1990:
+libI77:
+ 1. Repair nasty I/O bug: opening two files and closing the first
+(after possibly reading or writing it), then writing the second caused
+the last buffer of the second to be lost.
+ 2. Formatted reads of logical values treated all letters other than
+t or T as f (false).
+ libI77 files changed: err.c rdfmt.c Version.c
+ (Request "libi77 from f2c" -- you can't get these files individually.)
+
+f2c itself:
+  Repair nasty bug in translation of
+	ELSE IF (condition involving complicated abs, min, or max)
+-- auxiliary statements were emitted at the wrong place.
+  Supply semicolon previously omitted from the translation of a label
+(of a CONTINUE) immediately preceding an ELSE IF or an ELSE.  This
+bug made f2c produce invalid C.
+  Correct a memory fault that occurred (on some machines) when the
+error message "adjustable dimension on non-argument" should be given.
+  Minor tweaks to remove some harmless warnings by overly chatty C
+compilers.
+  Argument arays having constant dimensions but a variable lower bound
+(e.g., x(n+1:n+3)) had a * omitted from scalar arguments involved in
+the array offset computation.
+
+Wed Mar 28 18:47:59 EST 1990:
+libf77: add exit(0) to end of main [return(0) encounters a Cray bug]
+
+Sun Apr  1 16:20:58 EDT 1990:
+  Avoid dereferencing null when processing equivalences after an error.
+
+Fri Apr  6 08:29:49 EDT 1990:
+  Calls involving alternate return specifiers omitted processing
+needed for things like min, max, abs, and // (concatenation).
+  INTEGER*2 PARAMETERs were treated as INTEGER*4.
+  Convert some O(n^2) parsing to O(n).
+
+Tue Apr 10 20:07:02 EDT 1990:
+  When inconsistent calling sequences involve differing numbers of
+arguments, report the first differing argument rather than the numbers
+of arguments.
+  Fix bug under -a: formatted I/O in which either the unit or the
+format was a local character variable sometimes resulted in invalid C
+(a static struct initialized with an automatic component).
+  Improve error message for invalid flag after elided -.
+  Complain when literal table overflows, rather than infinitely
+looping.  (The complaint mentions the new and otherwise undocumented
+-NL option for specifying a larger literal table.)
+  New option -h for forcing strings to word (or, with -hd, double-word)
+boundaries where possible.
+  Repair a bug that could cause improper splitting of strings.
+  Fix bug (cast of c to doublereal) in
+	subroutine foo(c,r)
+	double complex c
+	double precision r
+	c = cmplx(r,real(c))
+	end
+  New include file "sysdep.h" has some things from defs.h (and
+elsewhere) that one may need to modify on some systems.
+  Some large arrays that were previously statically allocated are now
+dynamically allocated when f2c starts running.
+  f2c/src files changed:
+	README cds.c defs.h f2c.1 f2c.1t format.c formatdata.c init.c
+	io.c lex.c main.c makefile mem.c misc.c names.c niceprintf.c
+	output.c parse_args.c pread.c put.c putpcc.c sysdep.h
+	version.c xsum0.out
+
+Wed Apr 11 18:27:12 EDT 1990:
+  Fix bug in argument consistency checking of character, complex, and
+double complex valued functions.  If the same source file contained a
+definition of such a function with arguments not explicitly typed,
+then subsequent references to the function might get erroneous
+warnings of inconsistent calling sequences.
+  Tweaks to sysdep.h for partially ANSI systems.
+  New options -kr and -krd cause f2c to use temporary variables to
+enforce Fortran evaluation-order rules with pernicious, old-style C
+compilers that apply the associative law to floating-point operations.
+
+Sat Apr 14 15:50:15 EDT 1990:
+  libi77: libI77 adjusted to allow list-directed and namelist I/O
+of internal files; bug in namelist I/O of logical and character arrays
+fixed; list input of complex numbers adjusted to permit d or D to
+denote the start of the exponent field of a component.
+  f2c itself: fix bug in handling complicated lower-bound
+expressions for character substrings; e.g., min and max did not work
+right, nor did function invocations involving character arguments.
+  Switch to octal notation, rather than hexadecimal, for nonprinting
+characters in character and string constants.
+  Fix bug (when neither -A nor -C++ was specified) in typing of
+external arguments of type complex, double complex, or character:
+	subroutine foo(c)
+	external c
+	complex c
+now results in
+	/* Complex */ int (*c) ();
+(as, indeed, it once did) rather than
+	complex (*c) ();
+
+Sat Apr 14 22:50:39 EDT 1990:
+  libI77/makefile: updated "make check" to omit lio.c
+  lib[FI]77/makefile: trivial change: define CC = cc, reference $(CC).
+  (Request, e.g., "libi77 from f2c" -- you can't ask for individual
+files from lib[FI]77.)
+
+Wed Apr 18 00:56:37 EDT 1990:
+  Move declaration of atof() from defs.h to sysdep.h, where it is
+now not declared if stdlib.h is included.  (NeXT's stdlib.h has a
+#define atof that otherwise wreaks havoc.)
+  Under -u, provide a more intelligible error message (than "bad tag")
+for an attempt to define a function without specifying its type.
+
+Wed Apr 18 17:26:27 EDT 1990:
+  Recognize \v (vertical tab) in Hollerith as well as quoted strings;
+add recognition of \r (carriage return).
+  New option -!bs turns off recognition of escapes in character strings
+(\0, \\, \b, \f, \n, \r, \t, \v).
+  Move to sysdep.c initialization of some arrays whose initialization
+assumed ASCII; #define Table_size in sysdep.h rather than using
+hard-coded 256 in allocating arrays of size 1 << (bits/byte).
+
+Thu Apr 19 08:13:21 EDT 1990:
+  Warn when escapes would make Hollerith extend beyond statement end.
+  Omit max() definition from misc.c (should be invisible except on
+systems that erroneously #define max in stdlib.h).
+
+Mon Apr 23 22:24:51 EDT 1990:
+  When producing default-style C (no -A or -C++), cast switch
+expressions to (int).
+  Move "-lF77 -lI77 -lm -lc" to link_msg, defined in sysdep.c .
+  Add #define scrub(x) to sysdep.h, with invocations in format.c and
+formatdata.c, so that people who have systems like VMS that would
+otherwise create multiple versions of intermediate files can
+#define scrub(x) unlink(x)
+
+Tue Apr 24 18:28:36 EDT 1990:
+  Pass string lengths once rather than twice to a function of character
+arguments involved in comparison of character strings of length 1.
+
+Fri Apr 27 13:11:52 EDT 1990:
+  Fix bug that made f2c gag on concatenations involving char(...) on
+some systems.
+
+Sat Apr 28 23:20:16 EDT 1990:
+  Fix control-stack bug in
+	if(...) then
+	else if (complicated condition)
+	else
+	endif
+(where the complicated condition causes assignment to an auxiliary
+variable, e.g., max(a*b,c)).
+
+Mon Apr 30 13:30:10 EDT 1990:
+  Change fillers for DATA with holes from substructures to arrays
+(in an attempt to make things work right with C compilers that have
+funny padding rules for substructures, e.g., Sun C compilers).
+  Minor cleanup of exec.c (should not affect generated C).
+
+Mon Apr 30 23:13:51 EDT 1990:
+  Fix bug in handling return values of functions having multiple
+entry points of differing return types.
+
+Sat May  5 01:45:18 EDT 1990:
+  Fix type inference bug in
+	subroutine foo(x)
+	call goo(x)
+	end
+	subroutine goo(i)
+	i = 3
+	end
+Instead of warning of inconsistent calling sequences for goo,
+f2c was simply making i a real variable; now i is correctly
+typed as an integer variable, and f2c issues an error message.
+  Adjust error messages issued at end of declarations so they
+don't blame the first executable statement.
+
+Sun May  6 01:29:07 EDT 1990:
+  Fix bug in -P and -Ps: warn when the definition of a subprogram adds
+information that would change prototypes or previous declarations.
+
+Thu May 10 18:09:15 EDT 1990:
+  Fix further obscure bug with (default) -it: inconsistent calling
+sequences and I/O statements could interact to cause a memory fault.
+Example:
+      SUBROUTINE FOO
+      CALL GOO(' Something') ! Forgot integer first arg
+      END
+      SUBROUTINE GOO(IUNIT,MSG)
+      CHARACTER*(*)MSG
+      WRITE(IUNIT,'(1X,A)') MSG
+      END
+
+Fri May 11 16:49:11 EDT 1990:
+  Under -!c, do not delete any .c files (when there are errors).
+  Avoid dereferencing 0 when a fatal error occurs while reading
+Fortran on stdin.
+
+Wed May 16 18:24:42 EDT 1990:
+  f2c.ps made available.
+
+Mon Jun  4 12:53:08 EDT 1990:
+  Diagnose I/O units of invalid type.
+  Add specific error msg about dummy arguments in common.
+
+Wed Jun 13 12:43:17 EDT 1990:
+  Under -A, supply a missing "[1]" for CHARACTER*1 variables that appear
+both in a DATA statement and in either COMMON or EQUIVALENCE.
+
+Mon Jun 18 16:58:31 EDT 1990:
+  Trivial updates to f2c.ps .  ("Fortran 8x" --> "Fortran 90"; omit
+"(draft)" from "(draft) ANSI C".)
+
+Tue Jun 19 07:36:32 EDT 1990:
+  Fix incorrect code generated for ELSE IF(expression involving
+function call passing non-constant substring).
+  Under -h, preserve the property that strings are null-terminated
+where possible.
+  Remove spaces between # and define in lex.c output.c parse.h .
+
+Mon Jun 25 07:22:59 EDT 1990:
+  Minor tweak to makefile to reduce unnecessary recompilations.
+
+Tue Jun 26 11:49:53 EDT 1990:
+  Fix unintended truncation of some integer constants on machines
+where casting a long to (int) may change the value.  E.g., when f2c
+ran on machines with 16-bit ints, "i = 99999" was being translated
+to "i = -31073;".
+
+Wed Jun 27 11:05:32 EDT 1990:
+  Arrange for CHARACTER-valued PARAMETERs to honor their length
+specifications.  Allow CHAR(nn) in expressions defining such PARAMETERs.
+
+Fri Jul 20 09:17:30 EDT 1990:
+  Avoid dereferencing 0 when a FORMAT statement has no label.
+
+Thu Jul 26 11:09:39 EDT 1990:
+  Remarks about VOID and binread,binwrite added to README.
+  Tweaks to parse_args: should be invisible unless your compiler
+complained at (short)*store.
+
+Thu Aug  2 02:07:58 EDT 1990:
+  f2c.ps: change the first line of page 5 from
+	include stuff
+to
+	include 'stuff'
+
+Tue Aug 14 13:21:24 EDT 1990:
+  libi77: libI77 adjusted to treat tabs as spaces in list input.
+
+Fri Aug 17 07:24:53 EDT 1990:
+  libi77: libI77 adjusted so a blank='ZERO' clause (upper case Z)
+in an open of a currently open file works right.
+
+Tue Aug 28 01:56:44 EDT 1990:
+  Fix bug in warnings of inconsistent calling sequences: if an
+argument to a subprogram was never referenced, then a previous
+invocation of the subprogram (in the same source file) that
+passed something of the wrong type for that argument did not
+elicit a warning message.
+
+Thu Aug 30 09:46:12 EDT 1990:
+  libi77: prevent embedded blanks in list output of complex values;
+omit exponent field in list output of values of magnitude between
+10 and 1e8; prevent writing stdin and reading stdout or stderr;
+don't close stdin, stdout, or stderr when reopening units 5, 6, 0.
+
+Tue Sep  4 12:30:57 EDT 1990:
+  Fix bug in C emitted under -I2 or -i2 for INTEGER*4 FUNCTION.
+  Warn of missing final END even if there are previous errors.
+
+Fri Sep  7 13:55:34 EDT 1990:
+  Remark about "make xsum.out" and "make f2c" added to README.
+
+Tue Sep 18 23:50:01 EDT 1990:
+  Fix null dereference (and, on some systems, writing of bogus *_com.c
+files) under -ec or -e1c when a prototype file (*.p or *.P) describes
+COMMON blocks that do not appear in the Fortran source.
+  libi77:
+    Add some #ifdef lines (#ifdef MSDOS, #ifndef MSDOS) to avoid
+references to stat and fstat on non-UNIX systems.
+    On UNIX systems, add component udev to unit; decide that old
+and new files are the same iff both the uinode and udev components
+of unit agree.
+    When an open stmt specifies STATUS='OLD', use stat rather than
+access (on UNIX systems) to check the existence of the file (in case
+directories leading to the file have funny permissions and this is
+a setuid or setgid program).
+
+Thu Sep 27 16:04:09 EDT 1990:
+  Supply missing entry for Impldoblock in blksize array of cpexpr
+(in expr.c).  No examples are known where this omission caused trouble.
+
+Tue Oct  2 22:58:09 EDT 1990:
+  libf77: test signal(...) == SIG_IGN rather than & 01 in main().
+  libi77: adjust rewind.c so two successive rewinds after a write
+don't clobber the file.
+
+Thu Oct 11 18:00:14 EDT 1990:
+  libi77: minor cleanups: add #include "fcntl.h" to endfile.c, err.c,
+open.c; adjust g_char in util.c for segmented memories; in f_inqu
+(inquire.c), define x appropriately when MSDOS is defined.
+
+Mon Oct 15 20:02:11 EDT 1990:
+  Add #ifdef MSDOS pointer adjustments to mem.c; treat NAME= as a
+synonym for FILE= in OPEN statements.
+
+Wed Oct 17 16:40:37 EDT 1990:
+  libf77, libi77: minor cleanups: _cleanup() and abort() invocations
+replaced by invocations of sig_die in main.c; some error messages
+previously lost in buffers will now appear.
+
+Mon Oct 22 16:11:27 EDT 1990:
+  libf77: separate sig_die from main (for folks who don't want to use
+the main in libF77).
+  libi77: minor tweak to comments in README.
+
+Fri Nov  2 13:49:35 EST 1990:
+  Use two underscores rather than one in generated temporary variable
+names to avoid conflict with COMMON names.  f2c.ps updated to reflect
+this change and the NAME= extension introduced 15 Oct.
+  Repair a rare memory fault in io.c .
+
+Mon Nov  5 16:43:55 EST 1990:
+  libi77: changes to open.c (and err.c): complain if an open stmt
+specifies new= and the file already exists (as specified by Fortrans 77
+and 90); allow file= to be omitted in open stmts and allow
+status='replace' (Fortran 90 extensions).
+
+Fri Nov 30 10:10:14 EST 1990:
+  Adjust malloc.c for unusual systems whose sbrk() can return values
+not properly aligned for doubles.
+  Arrange for slightly more helpful and less repetitive warnings for
+non-character variables initialized with character data; these warnings
+are (still) suppressed by -w66.
+
+Fri Nov 30 15:57:59 EST 1990:
+  Minor tweak to README (about changing VOID in f2c.h).
+
+Mon Dec  3 07:36:20 EST 1990:
+  Fix spelling of "character" in f2c.1t.
+
+Tue Dec  4 09:48:56 EST 1990:
+  Remark about link_msg and libf2c added to f2c/README.
+
+Thu Dec  6 08:33:24 EST 1990:
+  Under -U, render label nnn as L_nnn rather than Lnnn.
+
+Fri Dec  7 18:05:00 EST 1990:
+  Add more names from f2c.h (e.g. integer, real) to the c_keywords
+list of names to which an underscore is appended to avoid confusion.
+
+Mon Dec 10 19:11:15 EST 1990:
+  Minor tweaks to makefile (./xsum) and README (binread/binwrite).
+  libi77: a few modifications for POSIX systems; meant to be invisible
+elsewhere.
+
+Sun Dec 16 23:03:16 EST 1990:
+  Fix null dereference caused by unusual erroneous input, e.g.
+	call foo('abc')
+	end
+	subroutine foo(msg)
+	data n/3/
+	character*(*) msg
+	end
+(Subroutine foo is illegal because the character statement comes after a
+data statement.)
+  Use decimal rather than hex constants in xsum.c (to prevent
+erroneous warning messages about constant overflow).
+
+Mon Dec 17 12:26:40 EST 1990:
+  Fix rare extra underscore in character length parameters passed
+for multiple entry points.
+
+Wed Dec 19 17:19:26 EST 1990:
+  Allow generation of C despite error messages about bad alignment
+forced by equivalence.
+  Allow variable-length concatenations in I/O statements, such as
+	open(3, file=bletch(1:n) // '.xyz')
+
+Fri Dec 28 17:08:30 EST 1990:
+  Fix bug under -p with formats and internal I/O "units" in COMMON,
+as in
+      COMMON /FIGLEA/F
+      CHARACTER*20 F
+      F = '(A)'
+      WRITE (*,FMT=F) 'Hello, world!'
+      END
+
+Tue Jan 15 12:00:24 EST 1991:
+  Fix bug when two equivalence groups are merged, the second with
+nonzero offset, and the result is then merged into a common block.
+Example:
+      INTEGER W(3), X(3), Y(3), Z(3)
+      COMMON /ZOT/ Z
+      EQUIVALENCE (W(1),X(1)), (X(2),Y(1)), (Z(3),X(1))
+***** W WAS GIVEN THE WRONG OFFSET
+  Recognize Fortran 90's optional NML= in NAMELIST READs and WRITEs.
+(Currently NML= and FMT= are treated as synonyms -- there's no
+error message if, e.g., NML= specifies a format.)
+  libi77: minor adjustment to allow internal READs from character
+string constants in read-only memory.
+
+Fri Jan 18 22:56:15 EST 1991:
+  Add comment to README about needing to comment out the typedef of
+size_t in sysdep.h on some systems, e.g. Sun 4.1.
+  Fix misspelling of "statement" in an error message in lex.c
+
+Wed Jan 23 00:38:48 EST 1991:
+  Allow hex, octal, and binary constants to have the qualifying letter
+(z, x, o, or b) either before or after the quoted string containing the
+digits.  For now this change will not be reflected in f2c.ps .
+
+Tue Jan 29 16:23:45 EST 1991:
+  Arrange for character-valued statement functions to give results of
+the right length (that of the statement function's name).
+
+Wed Jan 30 07:05:32 EST 1991:
+  More tweaks for character-valued statement functions: an error
+check and an adjustment so a right-hand side of nonconstant length
+(e.g., a substring) is handled right.
+
+Wed Jan 30 09:49:36 EST 1991:
+  Fix p1_head to avoid printing (char *)0 with %s.
+
+Thu Jan 31 13:53:44 EST 1991:
+  Add a test after the cleanup call generated for I/O statements with
+ERR= or END= clauses to catch the unlikely event that the cleanup
+routine encounters an error.
+
+Mon Feb  4 08:00:58 EST 1991:
+  Minor cleanup: omit unneeded jumps and labels from code generated for
+some NAMELIST READs and WRITEs with IOSTAT=, ERR=, and/or END=.
+
+Tue Feb  5 01:39:36 EST 1991:
+  Change Mktemp to mktmp (for the benefit of systems so brain-damaged
+that they do not distinguish case in external names -- and that for
+some reason want to load mktemp).  Try to get xsum0.out right this
+time (it somehow didn't get updated on 4 Feb. 1991).
+  Add note to libi77/README about adjusting the interpretation of
+RECL= specifiers in OPENs for direct unformatted I/O.
+
+Thu Feb  7 17:24:42 EST 1991:
+  New option -r casts values of REAL functions, including intrinsics,
+to REAL.  This only matters for unportable code like
+	real r
+	r = asin(1.)
+	if (r .eq. asin(1.)) ...
+[The behavior of such code varies with the Fortran compiler used --
+and sometimes is affected by compiler options.]  For now, the man page
+at the end of f2c.ps is the only part of f2c.ps that reflects this new
+option.
+
+Fri Feb  8 18:12:51 EST 1991:
+  Cast pointer differences passed as arguments to the appropriate type.
+This matters, e.g., with MSDOS compilers that yield a long pointer
+difference but have int == short.
+  Disallow nonpositive dimensions.
+
+Fri Feb 15 12:24:15 EST 1991:
+  Change %d to %ld in sprintf call in putpower in putpcc.c.
+  Free more memory (e.g. allowing translation of larger Fortran
+files under MS-DOS).
+  Recognize READ (character expression) and WRITE (character expression)
+as formatted I/O with the format given by the character expression.
+  Update year in Notice.
+
+Sat Feb 16 00:42:32 EST 1991:
+  Recant recognizing WRITE(character expression) as formatted output
+-- Fortran 77 is not symmetric in its syntax for READ and WRITE.
+
+Mon Mar  4 15:19:42 EST 1991:
+  Fix bug in passing the real part of a complex argument to an intrinsic
+function.  Omit unneeded parentheses in nested calls to intrinsics.
+Example:
+	subroutine foo(x, y)
+	complex y
+	x = exp(sin(real(y))) + exp(imag(y))
+	end
+
+Fri Mar  8 15:05:42 EST 1991:
+  Fix a comment in expr.c; omit safstrncpy.c (which had bugs in
+cases not used by f2c).
+
+Wed Mar 13 02:27:23 EST 1991:
+  Initialize firstmemblock->next in mem_init in mem.c .  [On most
+systems it was fortuituously 0, but with System V, -lmalloc could
+trip on this missed initialization.]
+
+Wed Mar 13 11:47:42 EST 1991:
+  Fix a reference to freed memory.
+
+Wed Mar 27 00:42:19 EST 1991:
+  Fix a memory fault caused by such illegal Fortran as
+       function foo
+       x = 3
+       logical foo	! declaration among executables
+       foo=.false.	! used to suffer memory fault
+       end
+
+Fri Apr  5 08:30:31 EST 1991:
+  Fix loss of % in some format expressions, e.g.
+	write(*,'(1h%)')
+  Fix botch introduced 27 March 1991 that caused subroutines with
+multiple entry points to have extraneous declarations of ret_val.
+
+Fri Apr  5 12:44:02 EST 1991
+  Try again to omit extraneous ret_val declarations -- this morning's
+fix was sometimes wrong.
+
+Mon Apr  8 13:47:06 EDT 1991:
+  Arrange for s_rnge to have the right prototype under -A -C .
+
+Wed Apr 17 13:36:03 EDT 1991:
+  New fatal error message for apparent invocation of a recursive
+statement function.
+
+Thu Apr 25 15:13:37 EDT 1991:
+  F2c and libi77 adjusted so NAMELIST works with -i2.  (I forgot
+about -i2 when adding NAMELIST.)  This required a change to f2c.h
+(that only affects NAMELIST I/O under -i2.)  Man-page description of
+-i2 adjusted to reflect that -i2 stores array lengths in short ints.
+
+Fri Apr 26 02:54:41 EDT 1991:
+  Libi77: fix some bugs in NAMELIST reading of multi-dimensional arrays
+(file rsne.c).
+
+Thu May  9 02:13:51 EDT 1991:
+  Omit a trailing space in expr.c (could cause a false xsum value if
+a mailer drops the trailing blank).
+
+Thu May 16 13:14:59 EDT 1991:
+  Libi77: increase LEFBL in lio.h to overcome a NeXT bug.
+  Tweak for compilers that recognize "nested" comments: inside comments,
+turn /* into /+ (as well as */ into +/).
+
+Sat May 25 11:44:25 EDT 1991:
+  libf77: s_rnge: declare line long int rather than int.
+
+Fri May 31 07:51:50 EDT 1991:
+  libf77: system_: officially return status.
+
+Mon Jun 17 16:52:53 EDT 1991:
+  Minor tweaks: omit unnecessary declaration of strcmp (that caused
+trouble on a system where strcmp was a macro) from misc.c; add
+SHELL = /bin/sh to makefiles.
+  Fix a dereference of null when a CHARACTER*(*) declaration appears
+(illegally) after DATA.  Complain only once per subroutine about
+declarations appearing after DATA.
+
+Mon Jul  1 00:28:13 EDT 1991:
+  Add test and error message for illegal use of subroutine names, e.g.
+      SUBROUTINE ZAP(A)
+      ZAP = A
+      END
+
+Mon Jul  8 21:49:20 EDT 1991:
+  Issue a warning about things like
+	integer i
+	i = 'abc'
+(which is treated as i = ichar('a')).  [It might be nice to treat 'abc'
+as an integer initialized (in a DATA statement) with 'abc', but
+other matters have higher priority.]
+  Render
+	i = ichar('A')
+as
+	i = 'A';
+rather than
+	i = 65;
+(which assumes ASCII).
+
+Fri Jul 12 07:41:30 EDT 1991:
+  Note added to README about erroneous definitions of __STDC__ .
+
+Sat Jul 13 13:38:54 EDT 1991:
+  Fix bugs in double type convesions of complex values, e.g.
+sngl(real(...)) or dble(real(...)) (where ... is complex).
+
+Mon Jul 15 13:21:42 EDT 1991:
+  Fix bug introduced 8 July 1991 that caused erroneous warnings
+"ichar([first char. of] char. string) assumed for conversion to numeric"
+when a subroutine had an array of character strings as an argument.
+
+Wed Aug 28 01:12:17 EDT 1991:
+  Omit an unused function in format.c, an unused variable in proc.c .
+  Under -r8, promote complex to double complex (as the man page claims).
+
+Fri Aug 30 17:19:17 EDT 1991:
+  f2c.ps updated: slightly expand description of intrinsics and,or,xor,
+not; add mention of intrinsics lshift, rshift; add note about f2c
+accepting Fortran 90 inline comments (starting with !); update Cobalt
+Blue address.
+
+Tue Sep 17 07:17:33 EDT 1991:
+  libI77: err.c and open.c modified to use modes "rb" and "wb"
+when (f)opening unformatted files; README updated to point out
+that it may be necessary to change these modes to "r" and "w"
+on some non-ANSI systems.
+
+Tue Oct 15 10:25:49 EDT 1991:
+  Minor tweaks that make some PC compilers happier: insert some
+casts, add args to signal functions.
+  Change -g to emit uncommented #line lines -- and to emit more of them;
+update fc, f2c.1, f2c.1t, f2c.ps to reflect this.
+  Change uchar to Uchar in xsum.c .
+  Bring gram.c up to date.
+
+Thu Oct 17 09:22:05 EDT 1991:
+  libi77: README, fio.h, sue.c, uio.c changed so the length field
+in unformatted sequential records has type long rather than int
+(unless UIOLEN_int is #defined).  This is for systems where sizeof(int)
+can vary, depending on the compiler or compiler options.
+
+Thu Oct 17 13:42:59 EDT 1991:
+  libi77: inquire.c: when MSDOS is defined, don't strcmp units[i].ufnm
+when it is NULL.
+
+Fri Oct 18 15:16:00 EDT 1991:
+  Correct xsum0.out in "all from f2c/src" (somehow botched on 15 Oct.).
+
+Tue Oct 22 18:12:56 EDT 1991:
+  Fix memory fault when a character*(*) argument is used (illegally)
+as a dummy variable in the definition of a statement function.  (The
+memory fault occurred when the statement function was invoked.)
+  Complain about implicit character*(*).
+
+Thu Nov 14 08:50:42 EST 1991:
+  libi77: change uint to Uint in fmt.h, rdfmt.c, wrtfmt.c; this change
+should be invisible unless you're running a brain-damaged system.
+
+Mon Nov 25 19:04:40 EST 1991:
+  libi77: correct botches introduced 17 Oct. 1991 and 14 Nov. 1991
+(change uint to Uint in lwrite.c; other changes that only matter if
+sizeof(int) != sizeof(long)).
+  Add a more meaningful error message when bailing out due to an attempt
+to invoke a COMMON variable as a function.
+
+Sun Dec  1 19:29:24 EST 1991:
+  libi77: uio.c: add test for read failure (seq. unformatted reads);
+adjust an error return from EOF to off end of record.
+
+Tue Dec 10 17:42:28 EST 1991:
+  Add tests to prevent memory faults with bad uses of character*(*).
+
+Thu Dec 12 11:24:41 EST 1991:
+  libi77: fix bug with internal list input that caused the last
+character of each record to be ignored; adjust error message in
+internal formatted input from "end-of-file" to "off end of record"
+if the format specifies more characters than the record contains.
+
+Wed Dec 18 17:48:11 EST 1991:
+  Fix bug in translating nonsensical ichar invocations involving
+concatenations.
+  Fix bug in passing intrinsics lle, llt, lge, lgt as arguments;
+hl_le was being passed rather than l_le, etc.
+  libf77: adjust length parameters from long to ftnlen, for
+compiling with f2c_i2 defined.
+
+Sat Dec 21 15:30:57 EST 1991:
+  Allow DO nnn ... to end with an END DO statement labelled nnn.
+
+Tue Dec 31 13:53:47 EST 1991:
+  Fix bug in handling dimension a(n**3,2) -- pow_ii was called
+incorrectly.
+  Fix bug in translating
+	subroutine x(abc,n)
+	character abc(n)
+	write(abc,'(i10)') 123
+	end
+(omitted declaration and initialiation of abc_dim1).
+  Complain about dimension expressions of such invalid types
+as complex and logical.
+
+Fri Jan 17 11:54:20 EST 1992:
+  Diagnose some illegal uses of main program name (rather than
+memory faulting).
+  libi77:  (1) In list and namelist input, treat "r* ," and "r*,"
+alike (where r is a positive integer constant), and fix a bug in
+handling null values following items with repeat counts (e.g.,
+2*1,,3).  (2) For namelist reading of a numeric array, allow a new
+name-value subsequence to terminate the current one (as though the
+current one ended with the right number of null values).
+(3) [lio.h, lwrite.c]:  omit insignificant zeros in list and namelist
+output.  (Compile with -DOld_list_output to get the old behavior.)
+
+Sat Jan 18 15:58:01 EST 1992:
+  libi77:  make list output consistent with F format by printing .1
+rather than 0.1 (introduced yesterday).
+
+Wed Jan 22 08:32:43 EST 1992:
+  libi77:  add comment to README pointing out preconnection of
+Fortran units 5, 6, 0 to stdin, stdout, stderr (respectively).
+
+Mon Feb  3 11:57:53 EST 1992:
+  libi77:  fix namelist read bug that caused the character following
+a comma to be ignored.
+
+Fri Feb 28 01:04:26 EST 1992:
+  libf77:  fix buggy z_sqrt.c (double precision square root), which
+misbehaved for arguments in the southwest quadrant.
+
+Thu Mar 19 15:05:18 EST 1992:
+  Fix bug (introduced 17 Jan 1992) in handling multiple entry points
+of differing types (with implicitly typed entries appearing after
+the first executable statement).
+  Fix memory fault in the following illegal Fortran:
+        double precision foo(i)
+*	illegal: above should be "double precision function foo(i)"
+        foo = i * 3.2
+        entry moo(i)
+        end
+  Note about ANSI_Libraries (relevant, e.g., to IRIX 4.0.1 and AIX)
+added to README.
+  Abort zero divides during constant simplification.
+
+Sat Mar 21 01:27:09 EST 1992:
+  Tweak ckalloc (misc.c) for systems where malloc(0) = 0; this matters
+for subroutines with multiple entry points but no arguments.
+  Add "struct memblock;" to init.c (irrelevant to most compilers).
+
+Wed Mar 25 13:31:05 EST 1992:
+  Fix bug with IMPLICIT INTEGER*4(...): under -i2 or -I2, the *4 was
+ignored.
+
+Tue May  5 09:53:55 EDT 1992:
+  Tweaks to README; e.g., ANSI_LIbraries changed to ANSI_Libraries .
+
+Wed May  6 23:49:07 EDT 1992
+  Under -A and -C++, have subroutines return 0 (even if they have
+no * arguments).
+  Adjust libi77 (rsne.c and lread.c) for systems where ungetc is
+a macro.  Tweak lib[FI]77/makefile to use unique intermediate file
+names (for parallel makes).
+
+Tue May 19 09:03:05 EDT 1992:
+  Adjust libI77 to make err= work with internal list and formatted I/O.
+
+Sat May 23 18:17:42 EDT 1992:
+  Under -A and -C++, supply "return 0;" after the code generated for
+a STOP statement -- the C compiler doesn't know that s_stop won't
+return.
+  New (mutually exclusive) options:
+	-f	treats all input lines as free-format lines,
+		honoring text that appears after column 72
+		and not padding lines shorter than 72 characters
+		with blanks (which matters if a character string
+		is continued across 2 or more lines).
+	-72	treats text appearing after column 72 as an error.
+
+Sun May 24 09:45:37 EDT 1992:
+  Tweak description of -f in f2c.1 and f2c.1t; update f2c.ps .
+
+Fri May 29 01:17:15 EDT 1992:
+  Complain about externals used as variables.  Example
+	subroutine foo(a,b)
+	external b
+	a = a*b		! illegal use of b; perhaps should be b()
+	end
+
+Mon Jun 15 11:15:27 EDT 1992:
+  Fix bug in handling namelists with names that have underscores.
+
+Sat Jun 27 17:30:59 EDT 1992:
+  Under -A and -C++, end Main program aliases with "return 0;".
+  Under -A and -C++, use .P files and usage in previous subprograms
+in the current file to give prototypes for functions declared EXTERNAL
+but not invoked.
+  Fix memory fault under -d1 -P .
+  Under -A and -C++, cast arguments to the right types in calling
+a function that has been defined in the current file or in a .P file.
+  Fix bug in handling multi-dimensional arrays with array references
+in their leading dimensions.
+  Fix bug in the intrinsic cmplx function when the first argument
+involves an expression for which f2c generates temporary variables,
+e.g. cmplx(abs(real(a)),1.) .
+
+Sat Jul 18 07:36:58 EDT 1992:
+  Fix buglet with -e1c (invisible on most systems) temporary file
+f2c_functions was unlinked before being closed.
+  libf77: fix bugs in evaluating m**n for integer n < 0 and m an
+integer different from 1 or a real or double precision 0.
+Catch SIGTRAP (to print "Trace trap" before aborting).  Programs
+that previously erroneously computed 1 for 0**-1 may now fault.
+Relevant routines: main.c pow_di.c pow_hh.c pow_ii.c pow_ri.c .
+
+Sat Jul 18 08:40:10 EDT 1992:
+  libi77: allow namelist input to end with & (e.g. &end).
+
+Thu Jul 23 00:14:43 EDT 1992
+  Append two underscores rather than one to C keywords used as
+local variables to avoid conflicts with similarly named COMMON blocks.
+
+Thu Jul 23 11:20:55 EDT 1992:
+  libf77, libi77 updated to assume ANSI prototypes unless KR_headers
+is #defined.
+  libi77 now recognizes a Z format item as in Fortran 90;
+the implementation assumes 8-bit bytes and botches character strings
+on little-endian machines (by printing their bytes from right to
+left): expect this bug to persist; fixing it would require a
+change to the I/O calling sequences.
+
+Tue Jul 28 15:18:33 EDT 1992:
+  libi77: insert missed "#ifdef KR_headers" lines around getnum
+header in rsne.c.  Version not updated.
+
+NOTE: "index from f2c" now ends with current timestamps of files in
+"all from f2c/src", sorted by time.  To bring your source up to date,
+obtain source files with a timestamp later than the time shown in your
+version.c.
+
+Fri Aug 14 08:07:09 EDT 1992:
+  libi77: tweak wrt_E in wref.c to avoid signing NaNs.
+
+Sun Aug 23 19:05:22 EDT 1992:
+  fc: supply : after O in getopt invocation (for -O1 -O2 -O3).
+
+Mon Aug 24 18:37:59 EDT 1992:
+  Recant above tweak to fc: getopt is dumber than I thought;
+it's necessary to say -O 1 (etc.).
+  libF77/README: add comments about ABORT, ERF, DERF, ERFC, DERFC,
+GETARG, GETENV, IARGC, SIGNAL, and SYSTEM.
+
+Tue Oct 27 01:57:42 EST 1992:
+  libf77, libi77:
+    1.  Fix botched indirection in signal_.c.
+    2.  Supply missing l_eof = 0 assignment to s_rsne() in rsne.c (so
+end-of-file on other files won't confuse namelist reads of external
+files).
+    3.  Prepend f__ to external names that are only of internal
+interest to lib[FI]77.
+
+Thu Oct 29 12:37:18 EST 1992:
+  libf77: Fix botch in signal_.c when KR_headers is #defined;
+add CFLAGS to makefile.
+  libi77: trivial change to makefile for consistency with
+libF77/makefile.
+
+Wed Feb  3 02:05:16 EST 1993:
+  Recognize types INTEGER*1, LOGICAL*1, LOGICAL*2, INTEGER*8.
+INTEGER*8 is not well tested and will only work reasonably on
+systems where int = 4 bytes, long = 8 bytes; on such systems,
+you'll have to modify f2c.h appropriately, changing integer
+from long to int and adding typedef long longint.  You'll also
+have to compile libI77 with Allow_TYQUAD #defined and adjust
+libF77/makefile to compile pow_qq.c.  In the f2c source, changes
+for INTEGER*8 are delimited by #ifdef TYQUAD ... #endif.  You
+can omit the INTEGER*8 changes by compiling with NO_TYQUAD
+#defined.  Otherwise, the new command-line option -!i8
+disables recognition of INTEGER*8.
+  libf77: add pow_qq.c
+  libi77: add #ifdef Allow_TYQUAD stuff.  Changes for INTEGER*1,
+LOGICAL*1, and LOGICAL*2 came last 23 July 1992.  Fix bug in
+backspace (that only bit when the last character of the second
+or subsequent buffer read was the previous newline).  Guard
+against L_tmpnam being too small in endfile.c.  For MSDOS,
+close and reopen files when copying to truncate.  Lengthen
+LINTW (buffer size in lwrite.c).
+  Add \ to the end of #define lines that get broken.
+  Fix bug in handling NAMELIST of items in EQUIVALENCE.
+  Under -h (or -hd), convert Hollerith to integer in general expressions
+(e.g., assignments), not just when they're passed as arguments, and
+blank-pad rather than 0-pad the Hollerith to a multiple of
+sizeof(integer) or sizeof(doublereal).
+  Add command-line option -s, which instructs f2c preserve multi-
+dimensional subscripts (by emitting and using appropriate #defines).
+  Fix glitch (with default type inferences) in examples like
+	call foo('abc')
+	end
+	subroutine foo(goo)
+	end
+This gave two warning messages:
+	Warning on line 4 of y.f: inconsistent calling sequences for foo:
+	        here 1, previously 2 args and string lengths.
+	Warning on line 4 of y.f: inconsistent calling sequences for foo:
+	        here 2, previously 1 args and string lengths.
+Now the second Warning is suppressed.
+  Complain about all inconsistent arguments, not just the first.
+  Switch to automatic creation of "all from f2c/src".  For folks
+getting f2c source via ftp, this means f2c/src/all.Z is now an
+empty file rather than a bundle.
+  Separate -P and -A: -P no longer implies -A.
+
+Thu Feb  4 00:32:20 EST 1993:
+  Fix some glitches (introduced yesterday) with -h .
+
+Fri Feb  5 01:40:38 EST 1993:
+  Fix bug in types conveyed for namelists (introduced 3 Feb. 1993).
+
+Fri Feb  5 21:26:43 EST 1993:
+  libi77: tweaks to NAMELIST and open (after comments by Harold
+Youngren):
+ 1. Reading a ? instead of &name (the start of a namelist) causes
+    the namelist being sought to be written to stdout (unit 6);
+    to omit this feature, compile rsne.c with -DNo_Namelist_Questions.
+ 2. Reading the wrong namelist name now leads to an error message
+    and an attempt to skip input until the right namelist name is found;
+    to omit this feature, compile rsne.c with -DNo_Bad_Namelist_Skip.
+ 3. Namelist writes now insert newlines before each variable; to omit
+    this feature, compile xwsne.c with -DNo_Extra_Namelist_Newlines.
+ 4. For OPEN of sequential files, ACCESS='APPEND' (or
+    access='anything else starting with "A" or "a"') causes the file to
+    be positioned at end-of-file, so a write will append to the file.
+    (This is nonstandard, but does not require modifying data
+    structures.)
+
+Mon Feb  8 14:40:37 EST 1993:
+  Increase number of continuation lines allowed from 19 to 99,
+and allow changing this limit with -NC (e.g. -NC200 for 200 lines).
+  Treat control-Z (at the beginning of a line) as end-of-file: see
+the new penultimate paragraph of README.
+  Fix a rarely seen glitch that could make an error messages to say
+"line 0".
+
+Tue Feb  9 02:05:40 EST 1993
+  libi77: change some #ifdef MSDOS lines to #ifdef NON_UNIX_STDIO,
+and, in err.c under NON_UNIX_STDIO, avoid close(creat(name,0666))
+when the unit has another file descriptor for name.
+
+Tue Feb  9 17:12:49 EST 1993
+  libi77: more tweaks for NON_UNIX_STDIO: use stdio routines
+rather than open, close, creat, seek, fdopen (except for f__isdev).
+
+Fri Feb 12 15:49:33 EST 1993
+  Update src/gram.c (which was forgotten in the recent updates).
+Most folks regenerate it anyway (wity yacc or bison).
+
+Thu Mar  4 17:07:38 EST 1993
+  Increase default max labels in computed gotos and alternate returns
+to 257, and allow -Nl1234 to specify this number.
+  Tweak put.c to check p->tag == TADDR in realpart() and imagpart().
+  Adjust fc script to allow .r (RATFOR) files and -C (check subscripts).
+  Avoid declaring strchr in niceprintf.c under -DANSI_Libraries .
+  gram.c updated again.
+  libi77: err.c, open.c: take declaration of fdopen from rawio.h.
+
+Sat Mar  6 07:09:11 EST 1993
+  libi77: uio.c: adjust off-end-of-record test for sequential
+unformatted reads to respond to err= rather than end= .
+
+Sat Mar  6 16:12:47 EST 1993
+  Treat scalar arguments of the form (v) and v+0, where v is a variable,
+as expressions: assign to a temporary variable, and pass the latter.
+  gram.c updated.
+
+Mon Mar  8 09:35:38 EST 1993
+  "f2c.h from f2c" updated to add types logical1 and integer1 for
+LOGICAL*1 and INTEGER*1.  ("f2c.h from f2c" is supposed to be the
+same as "f2c.h from f2c/src", which was updated 3 Feb. 1993.)
+
+Mon Mar  8 17:57:55 EST 1993
+  Fix rarely seen bug that could cause strange casts in function
+invocations (revealed by an example with msdos/f2c.exe).
+  msdos/f2cx.exe.Z and msdos/f2c.exe.Z updated (ftp access only).
+
+Fri Mar 12 12:37:01 EST 1993
+  Fix bug with -s in handling subscripts involving min, max, and
+complicated expressions requiring temporaries.
+  Fix bug in handling COMMONs that need padding by a char array.
+  msdos/f2cx.exe.Z and msdos/f2c.exe.Z updated (ftp access only).
+
+Fri Mar 12 17:16:16 EST 1993
+  libf77, libi77: updated for compiling under C++.
+
+Mon Mar 15 16:21:37 EST 1993
+  libi77: more minor tweaks (for -DKR_headers); Version.c not changed.
+
+Thu Mar 18 12:37:30 EST 1993
+  Flag -r (for discarding carriage-returns on systems that end lines
+with carriage-return/newline pairs, e.g. PCs) added to xsum, and
+xsum.c converted to ANSI/ISO syntax (with K&R syntax available with
+-DKR_headers).  [When time permits, the f2c source will undergo a
+similar conversion.]
+  libi77: tweaks to #includes in endfile.c, err.c, open.c, rawio.h;
+Version.c not changed.
+  f2c.ps updated (to pick up revision of 2 Feb. 1993 to f2c.1).
+
+Fri Mar 19 09:19:26 EST 1993
+  libi77: add (char *) casts to malloc and realloc invocations
+in err.c, open.c; Version.c not changed.
+
+Tue Mar 30 07:17:15 EST 1993
+  Fix bug introduced 6 March 1993: possible memory corruption when
+loops in data statements involve constant subscripts, as in
+	 DATA (GUNIT(1,I),I=0,14)/15*-1/
+
+Tue Mar 30 16:17:42 EST 1993
+  Fix bug with -s: (floating-point array item)*(complex item)
+generates an _subscr() reference for the floating-point array,
+but a #define for the _subscr() was omitted.
+
+Tue Apr  6 12:11:22 EDT 1993
+  libi77: adjust error returns for formatted inputs to flush the current
+input line when err= is specified.  To restore the old behavior (input
+left mid-line), either adjust the #definition of errfl in fio.h or omit
+the invocation of f__doend in err__fl (in err.c).
+
+Tue Apr  6 13:30:04 EDT 1993
+  Fix bug revealed in
+	subroutine foo(i)
+	call goo(int(i))
+	end
+which now passes a copy of i, rather than i itself.
+
+Sat Apr 17 11:41:02 EDT 1993
+  Adjust appending of underscores to conform with f2c.ps ("A Fortran
+to C Converter"): names that conflict with C keywords or f2c type
+names now have just one underscore appended (rather than two); add
+"integer1", "logical1", "longint" to the keyword list.
+  Append underscores to names that appear in EQUIVALENCE and are
+component names in a structure declared in f2c.h, thus avoiding a
+problem caused by the #defines emitted for equivalences.  Example:
+	complex a
+	equivalence (i,j)
+	a = 1	! a.i went awry because of #define i
+	j = 2
+	write(*,*) a, i
+	end
+  Adjust line-breaking logic to avoid splitting very long constants
+(and names).  Example:
+	! The next line starts with tab and thus is a free-format line.
+	a=.012345689012345689012345689012345689012345689012345689012345689012345689
+	end
+  Omit extraneous "return 0;" from entry stubs emitted for multiple
+entry points of type character, complex, or double complex.
+
+Sat Apr 17 14:35:05 EDT 1993
+  Fix bug (introduced 4 Feb.) in separating -P from -A that kept f2c
+from re-reading a .P file written without -A or -C++ describing a
+routine with an external argument.  [See the just-added note about
+separating -P from -A in the changes above for 3 Feb. 1993.]
+  Fix bug (type UNKNOWN for V in the example below) revealed by
+	subroutine a()
+	external c
+	call b(c)
+	end
+	subroutine b(v)
+	end
+
+Sun Apr 18 19:55:26 EDT 1993
+  Fix wrong calling sequence for mem() in yesterday's addition to
+equiv.c .
+
+Wed Apr 21 17:39:46 EDT 1993
+  Fix bug revealed in
+
+      ASSIGN 10 TO L1
+      GO TO 20
+ 10   ASSIGN 30 TO L2
+      STOP 10
+
+ 20   ASSIGN 10 TO L2	! Bug here because 10 had been assigned
+			! to another label, then defined.
+      GO TO L2
+ 30   END
+
+Fri Apr 23 18:38:50 EDT 1993
+  Fix bug with -h revealed in
+	CHARACTER*9 FOO
+	WRITE(FOO,'(I6)') 1
+	WRITE(FOO,'(I6)') 2	! struct icilist io___3 botched
+	END
+
+Tue Apr 27 16:08:28 EDT 1993
+  Tweak to makefile: remove "size f2c".
+
+Tue May  4 23:48:20 EDT 1993
+  libf77: tweak signal_ line of f2ch.add .
+
+Tue Jun  1 13:47:13 EDT 1993
+  Fix bug introduced 3 Feb. 1993 in handling multiple entry
+points with differing return types -- the postfix array in proc.c
+needed a new entry for integer*8 (which resulted in wrong
+Multitype suffixes for non-integral types).
+  For (default) K&R C, generate VOID rather than int functions for
+functions of Fortran type character, complex, and double complex.
+  msdos/f2cx.exe.Z and msdos/f2c.exe.Z updated (ftp access only).
+
+Tue Jun  1 23:11:15 EDT 1993
+  f2c.h: add Multitype component g and commented type longint.
+  proc.c: omit "return 0;" from stubs for complex and double complex
+entries (when entries have multiple types); add test to avoid memory
+fault with illegal combinations of entry types.
+
+Mon Jun  7 12:00:47 EDT 1993
+  Fix memory fault in
+	common /c/ m
+	integer m(1)
+	data m(1)/1/, m(2)/2/	! one too many initializers
+	end
+  msdos/f2cx.exe.Z and msdos/f2c.exe.Z updated (ftp access only).
+
+Fri Jun 18 13:55:51 EDT 1993
+  libi77: change type of signal_ in f2ch.add; change type of il in
+union Uint from long to integer (for machines like the DEC Alpha,
+where integer should be the same as int).  Version.c not changed.
+  Tweak gram.dcl and gram.head: add semicolons after some rules that
+lacked them, and remove an extraneous semicolon.  These changes are
+completely transparent to our local yacc programs, but apparently
+matter on some VMS systems.
+
+Wed Jun 23 01:02:56 EDT 1993
+  Update "fc" shell script, and bring f2c.1 and f2c.1t up to date:
+they're meant to be linked with (i.e., the same as) src/f2c.1 and
+src/f2c.1t .  [In the last update of f2c.1* (2 Feb. 1993), only
+src/f2c.1 and src/f2c.1t got changed -- a mistake.]
+
+Wed Jun 23 09:04:31 EDT 1993
+  libi77: fix bug in format reversions for internal writes.
+Example:
+	character*60 lines(2)
+	write(lines,"('n =',i3,2(' more text',i3))") 3, 4, 5, 6
+	write(*,*) 'lines(1) = ', lines(1)
+	write(*,*) 'lines(2) = ', lines(2)
+	end
+gave an error message that began "iio: off end of record", rather
+than giving the correct output:
+
+ lines(1) = n =  3 more text  4 more text  5
+ lines(2) =  more text  6 more text
+
+Thu Aug  5 11:31:14 EDT 1993
+  libi77: lread.c: fix bug in handling repetition counts for logical
+data (during list or namelist input).  Change struct f__syl to
+struct syl (for buggy compilers).
+
+Sat Aug  7 16:05:30 EDT 1993
+  libi77: lread.c (again): fix bug in namelist reading of incomplete
+logical arrays.
+  Fix minor calling-sequence errors in format.c, output.c, putpcc.c:
+should be invisible.
+
+Mon Aug  9 09:12:38 EDT 1993
+  Fix erroneous cast under -A in translating
+	character*(*) function getc()
+	getc(2:3)=' '		!wrong cast in first arg to s_copy
+	end
+  libi77: lread.c: fix bug in namelist reading of an incomplete array
+of numeric data followed by another namelist item whose name starts
+with 'd', 'D', 'e', or 'E'.
+
+Fri Aug 20 13:22:10 EDT 1993
+  Fix bug in do while revealed by
+	subroutine skdig (line, i)
+	character line*(*), ch*1
+	integer i
+	logical isdigit
+	isdigit(ch) = ch.ge.'0' .and. ch.le.'9'
+	do while (isdigit(line(i:i)))	! ch__1[0] was set before
+					! "while(...) {...}"
+		i = i + 1
+		enddo
+	end
+
+Fri Aug 27 08:22:54 EDT 1993
+  Add #ifdefs to avoid declaring atol when it is a macro; version.c
+not updated.
+
+Wed Sep  8 12:24:26 EDT 1993
+  libi77: open.c: protect #include "sys/..." with
+#ifndef NON_UNIX_STDIO; Version date not changed.
+
+Thu Sep  9 08:51:21 EDT 1993
+  Adjust "include" to interpret file names relative to the directory
+of the file that contains the "include".
+
+Fri Sep 24 00:56:12 EDT 1993
+  Fix offset error resulting from repeating the same equivalence
+statement twice.  Example:
+	real a(2), b(2)
+	equivalence (a(2), b(2))
+	equivalence (a(2), b(2))
+	end
+  Increase MAXTOKENLEN (to roughly the largest allowed by ANSI C).
+
+Mon Sep 27 08:55:09 EDT 1993
+  libi77: endfile.c: protect #include "sys/types.h" with
+#ifndef NON_UNIX_STDIO; Version.c not changed.
+
+Fri Oct 15 15:37:26 EDT 1993
+  Fix rarely seen parsing bug illustrated by
+	subroutine foo(xabcdefghij)
+	character*(*) xabcdefghij
+               IF (xabcdefghij.NE.'##') GOTO 40
+ 40	end
+in which the spacing in the IF line is crucial.
+
+Thu Oct 21 13:55:11 EDT 1993
+  Give more meaningful error message (then "unexpected character in
+cds") when constant simplification leads to Infinity or NaN.
+
+Wed Nov 10 15:01:05 EST 1993
+  libi77: backspace.c: adjust, under -DMSDOS, to cope with MSDOS
+text files, as handled by some popular PC C compilers.  Beware:
+the (defective) libraries associated with these compilers assume lines
+end with \r\n (conventional MS-DOS text files) -- and ftell (and
+hence the current implementation of backspace) screws up if lines with
+just \n.
+
+Thu Nov 18 09:37:47 EST 1993
+  Give a better error (than "control stack empty") for an extraneous
+ENDDO.  Example:
+	enddo
+	end
+  Update comments about ftp in "readme from f2c".
+
+Sun Nov 28 17:26:50 EST 1993
+  Change format of time stamp in version.c to yyyymmdd.
+  Sort parameter adjustments (or complain of impossible dependencies)
+so that dummy arguments are referenced only after being adjusted.
+Example:
+	subroutine foo(a,b)
+	integer a(2)		! a must be adjusted before b
+	double precision b(a(1),a(2))
+	call goo(b(3,4))
+	end
+  Adjust structs for initialized common blocks and equivalence classes
+to omit the trailing struct component added to force alignment when
+padding already forces the desired alignment.  Example:
+	PROGRAM TEST
+	COMMON /Z/ A, CC
+	CHARACTER*4 CC
+	DATA cc /'a'/
+	END
+now gives
+	struct {
+	    integer fill_1[1];
+	    char e_2[4];
+	    } z_ = { {0}, {'a', ' ', ' ', ' '} };
+rather than
+struct {
+    integer fill_1[1];
+    char e_2[4];
+    real e_3;
+    } z_ = { {0}, {'a', ' ', ' ', ' '}, (float)0. };
+
+Wed Dec  8 16:24:43 EST 1993
+  Adjust lex.c to recognize # nnn "filename" lines emitted by cpp;
+this affects the file names and line numbers in error messages and
+the #line lines emitted under -g.
+  Under -g, arrange for a file that starts with an executable
+statement to have the first #line line indicate line 1, rather
+than the line number of the END statement ending the main program.
+  Adjust fc script to run files ending in .F through /lib/cpp.
+  Fix bug ("Impossible tag 2") in
+	if (t .eq. (0,2)) write(*,*) 'Bug!'
+	end
+  libi77: iio.c: adjust internal formatted reads to treat short records
+as though padded with blanks (rather than causing an "off end of record"
+error).
+
+Wed Dec 15 15:19:15 EST 1993
+  fc: adjusted for .F files to pass -D and -I options to cpp.
+
+Fri Dec 17 20:03:38 EST 1993
+  Fix botch introduced 28 Nov. 1993 in vax.c; change "version of"
+to "version".
+
+Tue Jan  4 15:39:52 EST 1994
+  msdos/f2cx.exe.Z and msdos/f2c.exe.Z updated (ftp access only).
+
+Wed Jan 19 08:55:19 EST 1994
+  Arrange to accept
+	integer	Nx, Ny, Nz
+	parameter	(Nx = 10, Ny = 20)
+	parameter	(Nz = max(Nx, Ny))
+	integer	c(Nz)
+	call foo(c)
+	end
+rather than complaining "Declaration error for c: adjustable dimension
+on non-argument".  The necessary changes cause some hitherto unfolded
+constant expressions to be folded.
+  Accept BYTE as a synonym for INTEGER*1.
+
+Thu Jan 27 08:57:40 EST 1994
+  Fix botch in changes of 19 Jan. 1994 that broke entry points with
+multi-dimensional array arguments that did not appear in the subprogram
+argument list and whose leading dimensions depend on arguments.
+
+Mon Feb  7 09:24:30 EST 1994
+  Remove artifact in "fc" script that caused -O to be ignored:
+	87c87
+	<		# lcc ignores -O...
+	---
+	>		CFLAGS="$CFLAGS $O"
+
+Sun Feb 20 17:04:58 EST 1994
+  Fix bugs reading .P files for routines with arguments of type
+INTEGER*1, INTEGER*8, LOGICAL*2.
+  Fix glitch in reporting inconsistent arguments for routines involving
+character arguments:  "arg n" had n too large by the number of
+character arguments.
+
+Tue Feb 22 20:50:08 EST 1994
+  Trivial changes to data.c format.c main.c niceprintf.c output.h and
+sysdep.h (consistency improvements).
+  libI77: lread.c: check for NULL return from realloc.
+
+Fri Feb 25 23:56:08 EST 1994
+  output.c, sysdep.h: arrange for -DUSE_DTOA to use dtoa.c and g_fmt.c
+for correctly rounded decimal values on IEEE-arithmetic machines
+(plus machines with VAX and IBM-mainframe arithmetic).  These
+routines are available from netlib's fp directory.
+  msdos/f2cx.exe.Z and msdos/f2c.exe.Z updated (ftp access only); the
+former uses -DUSE_DTOA to keep 12 from printing as 12.000000000000001.
+  vax.c: fix wrong arguments to badtag and frchain introduced
+28 Nov. 1993.
+  Source for f2c converted to ANSI/ISO format, with the K&R format
+available by compilation with -DKR_headers .
+  Arrange for (double precision expression) relop (single precision
+constant) to retain the single-precision nature of the constant.
+Example:
+	double precision t
+	if (t .eq. 0.3) ...
+
+Mon Feb 28 11:40:24 EST 1994
+  README updated to reflect a modification just made to netlib's
+"dtoa.c from fp":
+96a97,105
+> Also add the rule
+>
+> 	dtoa.o: dtoa.c
+> 		$(CC) -c $(CFLAGS) -DMALLOC=ckalloc -DIEEE... dtoa.c
+>
+> (without the initial tab) to the makefile, where IEEE... is one of
+> IEEE_MC68k, IEEE_8087, VAX, or IBM, depending on your machine's
+> arithmetic.  See the comments near the start of dtoa.c.
+>
+
+Sat Mar  5 09:41:52 EST 1994
+  Complain about functions with the name of a previously declared
+common block (which is illegal).
+  New option -d specifies the directory for output .c and .P files;
+f2c.1 and f2c.1t updated.  The former undocumented debug option -dnnn
+is now -Dnnn.
+
+Thu Mar 10 10:21:44 EST 1994
+  libf77: add #undef min and #undef max lines to s_paus.c s_stop.c
+and system_.c; Version.c not changed.
+  libi77: add -DPad_UDread lines to uio.c and explanation to README:
+    Some buggy Fortran programs use unformatted direct I/O to write
+    an incomplete record and later read more from that record than
+    they have written.  For records other than the last, the unwritten
+    portion of the record reads as binary zeros.  The last record is
+    a special case: attempting to read more from it than was written
+    gives end-of-file -- which may help one find a bug.  Some other
+    Fortran I/O libraries treat the last record no differently than
+    others and thus give no help in finding the bug of reading more
+    than was written.  If you wish to have this behavior, compile
+    uio.c with -DPad_UDread .
+Version.c not changed.
+
+Tue Mar 29 17:27:54 EST 1994
+  Adjust make_param so dimensions involving min, max, and other
+complicated constant expressions do not provoke error messages
+about adjustable dimensions on non-arguments.
+  Fix botch introduced 19 Jan 1994: "adjustable dimension on non-
+argument" messages could cause some things to be freed twice.
+
+Tue May 10 07:55:12 EDT 1994
+  Trivial changes to exec.c, p1output.c, parse_args.c, proc.c,
+and putpcc.c: change arguments from
+	type foo[]
+to
+	type *foo
+for consistency with defs.h.  For most compilers, this makes no
+difference.
+
+Thu Jun  2 12:18:18 EDT 1994
+  Fix bug in handling FORMAT statements that have adjacent character
+(or Hollerith) strings: an extraneous \002 appeared between the
+strings.
+  libf77: under -DNO_ONEXIT, arrange for f_exit to be called just
+once; previously, upon abnormal termination (including stop statements),
+it was called twice.
+
+Mon Jun  6 15:52:57 EDT 1994
+  libf77: Avoid references to SIGABRT and SIGIOT if neither is defined;
+Version.c not changed.
+  libi77: Add cast to definition of errfl() in fio.h; this only matters
+on systems with sizeof(int) < sizeof(long).  Under -DNON_UNIX_STDIO,
+use binary mode for direct formatted files (to avoid any confusion
+connected with \n characters).
+
+Fri Jun 10 16:47:31 EDT 1994
+  Fix bug under -A in handling unreferenced (and undeclared)
+external arguments in subroutines with multiple entry points.  Example:
+	subroutine m(fcn,futil)
+	external fcn,futil
+	call fcn
+	entry mintio(i1) ! (D_fp)0 rather than (U_fp)0 for futil
+	end
+
+Wed Jun 15 10:38:14 EDT 1994
+  Allow char(constant expression) function in parameter declarations.
+(This was probably broken in the changes of 29 March 1994.)
+
+Fri Jul  1 23:54:00 EDT 1994
+  Minor adjustments to makefile (rule for f2c.1 commented out) and
+sysdep.h (#undef KR_headers if __STDC__ is #defined, and base test
+for ANSI_Libraries and ANSI_Prototypes on KR_headers rather than
+__STDC__); version.c touched but not changed.
+  libi77: adjust fp.h so local.h is only needed under -DV10;
+Version.c not changed.
+
+Tue Jul  5 03:05:46 EDT 1994
+  Fix segmentation fault in
+	subroutine foo(a,b,k)
+	data i/1/
+	double precision a(k,1)	! sequence error: must precede data
+	b = a(i,1)
+	end
+  libi77: Fix bug (introduced 6 June 1994?) in reopening files under
+NON_UNIX_STDIO.
+  Fix some error messages caused by illegal Fortran.  Examples:
+* 1.
+	x(i) = 0  !Missing declaration for array x
+	call f(x) !Said Impossible storage class 8 in routine mkaddr
+	end	  !Now says invalid use of statement function x
+* 2.
+	f = g	!No declaration for g; by default it's a real variable
+	call g	!Said invalid class code 2 for function g
+	end	!Now says g cannot be called
+* 3.
+	intrinsic foo	!Invalid intrinsic name
+	a = foo(b)	!Said intrcall: bad intrgroup 0
+	end		!Now just complains about line 1
+
+Tue Jul  5 11:14:26 EDT 1994
+  Fix glitch in handling erroneous statement function declarations.
+Example:
+	a(j(i) - i) = a(j(i) - i) + 1	! bad statement function
+	call foo(a(3))	! Said Impossible type 0 in routine mktmpn
+	end		! Now warns that i and j are not used
+
+Wed Jul  6 17:31:25 EDT 1994
+  Tweak test for statement functions that (illegally) call themselves;
+f2c will now proceed to check for other errors, rather than bailing
+out at the first recursive statement function reference.
+  Warn about but retain divisions by 0 (instead of calling them
+"compiler errors" and quiting).  On IEEE machines, this permits
+	double precision nan, ninf, pinf
+	nan = 0.d0/0.d0
+	pinf = 1.d0/0.d0
+	ninf = -1.d0/0.d0
+	write(*,*) 'nan, pinf, ninf = ', nan, pinf, ninf
+	end
+to print
+	nan, pinf, ninf =   NaN  Infinity -Infinity
+  libi77: wref.c: protect with #ifdef GOOD_SPRINTF_EXPONENT an
+optimization that requires exponents to have 2 digits when 2 digits
+suffice.  lwrite.c wsfe.c (list and formatted external output):
+omit ' ' carriage-control when compiled with -DOMIT_BLANK_CC .
+Off-by-one bug fixed in character count for list output of character
+strings.  Omit '.' in list-directed printing of Nan, Infinity.
+
+Mon Jul 11 13:05:33 EDT 1994
+  src/gram.c updated.
+
+Tue Jul 12 10:24:42 EDT 1994
+  libi77: wrtfmt.c: under G11.4, write 0. as "  .0000    " rather
+than "  .0000E+00".
+
+Thu Jul 14 17:55:46 EDT 1994
+  Fix glitch in changes of 6 July 1994 that could cause erroneous
+"division by zero" warnings (or worse).  Example:
+	subroutine foo(a,b)
+	y = b
+	a = a / y	! erroneous warning of division by zero
+	end
+
+Mon Aug  1 16:45:17 EDT 1994
+  libi77: lread.c rsne.c: for benefit of systems with a buggy stdio.h,
+declare ungetc when neither KR_headers nor ungetc is #defined.
+Version.c not changed.
+
+Wed Aug  3 01:53:00 EDT 1994
+  libi77: lwrite.c (list output): do not insert a newline when
+appending an oversize item to an empty line.
+
+Mon Aug  8 00:51:01 EDT 1994
+  Fix bug (introduced 3 Feb. 1993) that, under -i2, kept LOGICAL*2
+variables from appearing in INQUIRE statements.  Under -I2, allow
+LOGICAL*4 variables to appear in INQUIRE.  Fix intrinsic function
+LEN so it returns a short value under -i2, a long value otherwise.
+  exec.c: fix obscure memory fault possible with bizarre (and highly
+erroneous) DO-loop syntax.
+
+Fri Aug 12 10:45:57 EDT 1994
+  libi77: fix glitch that kept ERR= (in list- or format-directed input)
+from working after a NAMELIST READ.
+
+Thu Aug 25 13:58:26 EDT 1994
+  Suppress -s when -C is specified.
+  Give full pathname (netlib@research.att.com) for netlib in readme and
+src/README.
+
+Wed Sep  7 22:13:20 EDT 1994
+  libi77: typesize.c: adjust to allow types LOGICAL*1, LOGICAL*2,
+INTEGER*1, and (under -DAllow_TYQUAD) INTEGER*8 in NAMELISTs.
+
+Fri Sep 16 17:50:18 EDT 1994
+  Change name adjustment for reserved words: instead of just appending
+"_" (a single underscore), append "_a_" to local variable names to avoid
+trouble when a common block is named a reserved word and the same
+reserved word is also a local variable name.  Example:
+	common /const/ a,b,c
+	real const(3)
+	equivalence (const(1),a)
+	a = 1.234
+	end
+  Arrange for ichar() to treat characters as unsigned.
+  libf77: s_cmp.c: treat characters as unsigned in comparisons.
+These changes for unsignedness only matter for strings that contain
+non-ASCII characters.  Now ichar() should always be >= 0.
+
+Sat Sep 17 11:19:32 EDT 1994
+  fc: set rc=$? before exit (to get exit code right in trap code).
+
+Mon Sep 19 17:49:43 EDT 1994
+  libf77: s_paus.c: flush stderr after PAUSE; add #ifdef MSDOS stuff.
+  libi77: README: point out general need for -DMSDOS under MS-DOS.
+
+Tue Sep 20 11:42:30 EDT 1994
+  Fix bug in comparing identically named common blocks, in which
+all components have the same names and types, but at least one is
+dimensioned (1) and the other is not dimensioned.  Example:
+	subroutine foo
+	common /ab/ a
+	a=1.	!!! translated correctly to ab_1.a = (float)1.;
+	end
+	subroutine goo
+	common /ab/ a(1)
+	a(1)=2.	!!! translated erroneously to ab_1.a[0] = (float)2.
+	end
+
+Tue Sep 27 23:47:34 EDT 1994
+  Fix bug introduced 16 Sept. 1994: don't add _a_ to C keywords
+used as external names.  In fact, return to earlier behavior of
+appending __ to C keywords unless they are used as external names,
+in which case they get just one underscore appended.
+  Adjust constant handling so integer and logical PARAMETERs retain
+type information, particularly under -I2.  Example:
+	SUBROUTINE FOO
+	INTEGER I
+	INTEGER*1 I1
+	INTEGER*2 I2
+	INTEGER*4 I4
+	LOGICAL L
+	LOGICAL*1 L1
+	LOGICAL*2 L2
+	LOGICAL*4 L4
+	PARAMETER (L=.FALSE., L1=.FALSE., L2=.FALSE., L4=.FALSE.)
+	PARAMETER (I=0,I1=0,I2=0,I4=0)
+	CALL DUMMY(I, I1, I2, I4, L, L1, L2, L4)
+	END
+  f2c.1t: Change f\^2c to f2c (omit half-narrow space) in line following
+".SH NAME" for benefit of systems that cannot cope with troff commands
+in this context.
+
+Wed Sep 28 12:45:19 EDT 1994
+  libf77: s_cmp.c fix glitch in -DKR_headers version introduced
+12 days ago.
+
+Thu Oct  6 09:46:53 EDT 1994
+  libi77: util.c: omit f__mvgbt (which is never used).
+  f2c.h: change "long" to "long int" to facilitate the adjustments
+by means of sed described above.  Comment out unused typedef of Long.
+
+Fri Oct 21 18:02:24 EDT 1994
+  libf77: add s_catow.c and adjust README to point out that changing
+"s_cat.o" to "s_catow.o" in the makefile will permit the target of a
+concatenation to appear on its right-hand side (contrary to the
+Fortran 77 Standard and at the cost of some run-time efficiency).
+
+Wed Nov  2 00:03:58 EST 1994
+  Adjust -g output to contain only one #line line per statement,
+inserting \ before the \n ending lines broken because of their
+length [this insertion was recanted 10 Dec. 1994].  This change
+accommodates an idiocy in the ANSI/ISO C standard, which leaves
+undefined the behavior of #line lines that occur within the arguments
+to a macro call.
+
+Wed Nov  2 14:44:27 EST 1994
+  libi77: under compilation with -DALWAYS_FLUSH, flush buffers at
+the end of each write statement, and test (via the return from
+fflush) for write failures, which can be caught with an ERR=
+specifier in the write statement.  This extra flushing slows
+execution, but can abort execution or alter the flow of control
+when a disk fills up.
+  f2c/src/io.c: Add ERR= test to e_wsle invocation (end of
+list-directed external output) to catch write failures when libI77
+is compiled with -DALWAYS_FLUSH.
+
+Thu Nov  3 10:59:13 EST 1994
+  Fix bug in handling dimensions involving certain intrinsic
+functions of constant expressions: the expressions, rather than
+pointers to them, were passed.  Example:
+      subroutine subtest(n,x)
+      real x(2**n,n) ! pow_ii(2,n) was called; now it's pow_ii(&c__2,n)
+      x(2,2)=3.
+      end
+
+Tue Nov  8 23:56:30 EST 1994
+  malloc.c: remove assumption that only malloc calls sbrk.  This
+appears to make malloc.c useful on RS6000 systems.
+
+Sun Nov 13 13:09:38 EST 1994
+  Turn off constant folding of integers used in floating-point
+expressions, so the assignment in
+	subroutine foo(x)
+	double precision x
+	x = x*1000000*500000
+	end
+is rendered as
+	*x = *x * 1000000 * 500000;
+rather than as
+	*x *= 1783793664;
+
+Sat Dec 10 16:31:40 EST 1994
+  Supply a better error message (than "Impossible type 14") for
+	subroutine foo
+	foo = 3
+	end
+  Under -g, convey name of included files to #line lines.
+  Recant insertion of \ introduced (under -g) 2 Nov. 1994.
+
+Thu Dec 15 14:33:55 EST 1994
+  New command-line option -Idir specifies directories in which to
+look for non-absolute include files (after looking in the directory
+of the current input file).  There can be several -Idir options, each
+specifying one directory.  All -Idir options are considered, from
+left to right, until a suitably named file is found.  The -I2 and -I4
+command-line options have precedence, so directories named 2 or 4
+must be spelled by some circumlocation, such as -I./2 .
+  f2c.ps updated to mention the new -Idir option, correct a typo,
+and bring the man page at the end up to date.
+  lex.c: fix bug in reading line numbers in #line lines.
+  fc updated to pass -Idir options to f2c.
+
+Thu Dec 29 09:48:03 EST 1994
+  Fix bug (e.g., addressing fault) in diagnosing inconsistency in
+the type of function eta in the following example:
+	function foo(c1,c2)
+	double complex foo,c1,c2
+	double precision eta
+	foo = eta(c1,c2)
+	end
+	function eta(c1,c2)
+	double complex eta,c1,c2
+	eta = c1*c2
+	end
+
+Mon Jan  2 13:27:26 EST 1995
+  Retain casts for SNGL (or FLOAT) that were erroneously optimized
+away.  Example:
+	subroutine foo(a,b)
+	double precision a,b
+	a = float(b)	! now rendered as *a = (real) (*b);
+	end
+  Use float (rather than double) temporaries in certain expressions
+of type complex.  Example: the temporary for sngl(b) in
+	complex a
+	double precision b
+	a = sngl(b) - (3.,4.)
+is now of type float.
+
+Fri Jan  6 00:00:27 EST 1995
+  Adjust intrinsic function cmplx to act as dcmplx (returning
+double complex rather than complex) if either of its args is of
+type double precision.  The double temporaries used prior to 2 Jan.
+1995 previously gave it this same behavior.
+
+Thu Jan 12 12:31:35 EST 1995
+  Adjust -krd to use double temporaries in some calculations of
+type complex.
+  libf77: pow_[dhiqrz][hiq].c: adjust x**i to work on machines
+that sign-extend right shifts when i is the most negative integer.
+
+Wed Jan 25 00:14:42 EST 1995
+  Fix memory fault in handling overlapping initializations in
+	block data
+	common /zot/ d
+	double precision d(3)
+	character*6 v(4)
+	real r(2)
+	equivalence (d(3),r(1)), (d(1),v(1))
+	data v/'abcdef', 'ghijkl', 'mnopqr', 'stuvwx'/
+	data r/4.,5./
+	end
+  names.c: add "far", "huge", "near" to c_keywords (causing them
+to have __ appended when used as local variables).
+  libf77: add s_copyow.c, an alternative to s_copy.c for handling
+(illegal) character assignments where the right- and left-hand
+sides overlap, as in a(2:4) = a(1:3).
+
+Thu Jan 26 14:21:19 EST 1995
+  libf77: roll s_catow.c and s_copyow.c into s_cat.c and s_copy.c,
+respectively, allowing the left-hand side of a character assignment
+to appear on its right-hand side unless s_cat.c and s_copy.c are
+compiled with -DNO_OVERWRITE (which is a bit more efficient).
+Fortran 77 forbids the left-hand side from participating in the
+right-hand side (of a character assignment), but Fortran 90 allows it.
+  libi77: wref.c: fix glitch in printing the exponent of 0 when
+GOOD_SPRINTF_EXPONENT is not #defined.
+
+Fri Jan 27 12:25:41 EST 1995
+  Under -C++ -ec (or -C++ -e1c), surround struct declarations with
+	#ifdef __cplusplus
+	extern "C" {
+	#endif
+and
+	#ifdef __cplusplus
+	}
+	#endif
+(This isn't needed with cfront, but apparently is necessary with
+some other C++ compilers.)
+  libf77: minor tweak to s_copy.c: copy forward whenever possible
+(for better cache behavior).
+
+Wed Feb  1 10:26:12 EST 1995
+  Complain about parameter statements that assign values to dummy
+arguments, as in
+	subroutine foo(x)
+	parameter(x = 3.4)
+	end
+
+Sat Feb  4 20:22:02 EST 1995
+  fc: omit "lib=/lib/num/lib.lo".
+
+Wed Feb  8 08:41:14 EST 1995
+  Minor changes to exec.c, putpcc.c to avoid "bad tag" or "error
+in frexpr" with certain invalid Fortran.
+
+Sat Feb 11 08:57:39 EST 1995
+  Complain about integer overflows, both in simplifying integer
+expressions, and in converting integers from decimal to binary.
+  Fix a memory fault in putcx1() associated with invalid input.
+
+Thu Feb 23 11:20:59 EST 1995
+  Omit MAXTOKENLEN; realloc token if necessary (to handle very long
+strings).
+
+Fri Feb 24 11:02:00 EST 1995
+  libi77: iio.c: z_getc: insert (unsigned char *) to allow internal
+reading of characters with high-bit set (on machines that sign-extend
+characters).
+
+Tue Mar 14 18:22:42 EST 1995
+  Fix glitch (in io.c) in handling 0-length strings in format
+statements, as in
+	write(*,10)
+ 10	format(' ab','','cd')
+  libi77: lread.c and rsfe.c: adjust s_rsle and s_rsfe to check for
+end-of-file (to prevent infinite loops with empty read statements).
+
+Wed Mar 22 10:01:46 EST 1995
+  f2c.ps: adjust discussion of -P on p. 7 to reflect a change made
+3 Feb. 1993: -P no longer implies -A.
+
+Fri Apr 21 18:35:00 EDT 1995
+  fc script: remove absolute paths (since PATH specifies only standard
+places).  On most systems, it's still necessary to adjust the PATH
+assignment at the start of fc to fit the local conventions.
+
+Fri May 26 10:03:17 EDT 1995
+  fc script: add recognition of -P and .P files.
+  libi77: iio.c: z_wnew: fix bug in handling T format items in internal
+writes whose last item is written to an earlier position than some
+previous item.
+
+Wed May 31 11:39:48 EDT 1995
+  libf77: added subroutine exit(rc) (with integer return code rc),
+which works like a stop statement but supplies rc as the program's
+return code.
+
+Fri Jun  2 11:56:50 EDT 1995
+  Fix memory fault in
+	parameter (x=2.)
+	data x /2./
+	end
+This now elicits two error messages; the second ("too many
+initializers"), though not desirable, seems hard to eliminate
+without considerable hassle.
+
+Mon Jul 17 23:24:20 EDT 1995
+  Fix botch in simplifying constants in certain complex
+expressions.  Example:
+	subroutine foo(s,z)
+	double complex z
+	double precision s, M, P
+	parameter ( M = 100.d0, P = 2.d0 )
+	z = M * M  / s  * dcmplx (1.d0, P/M)
+*** The imaginary part of z was miscomputed ***
+	end
+  Under -ext, complain about nonintegral dimensions.
+
+Fri Jul 21 11:18:36 EDT 1995
+  Fix glitch on line 159 of init.c: change
+	"(shortlogical *)0)",
+to
+	"(shortlogical *)0",
+This affects multiple entry points when some but not all have
+arguments of type logical*2.
+  libi77: adjust lwrite.c, wref.c, wrtfmt.c so compiling with
+-DWANT_LEAD_0 causes formatted writes of floating-point numbers of
+magnitude < 1 to have an explicit 0 before the decimal point (if the
+field-width permits it).  Note that the Fortran 77 Standard leaves it
+up to the implementation whether to supply these superfluous zeros.
+
+Tue Aug  1 09:25:56 EDT 1995
+  Permit real (or double precision) parameters in dimension expressions.
+
+Mon Aug  7 08:04:00 EDT 1995
+  Append "_eqv" rather than just "_" to names that that appear in
+EQUIVALENCE statements as well as structs in f2c.h (to avoid a
+conflict when these names also name common blocks).
+
+Tue Aug  8 12:49:02 EDT 1995
+  Modify yesterday's change: merge st_fields with c_keywords, to
+cope with equivalences introduced to permit initializing numeric
+variables with character data.  DATA statements causing these
+equivalences can appear after executable statements, so the only
+safe course is to rename all local variable with names in the
+former st_fields list.  This has the unfortunate side effect that
+the common local variable "i" will henceforth be renamed "i__".
+
+Wed Aug 30 00:19:32 EDT 1995
+  libf77: add F77_aloc, now used in s_cat and system_ (to allocate
+memory and check for failure in so doing).
+  libi77: improve MSDOS logic in backspace.c.
+
+Wed Sep  6 09:06:19 EDT 1995
+  libf77: Fix return type of system_ (integer) under -DKR_headers.
+  libi77: Move some f_init calls around for people who do not use
+libF77's main(); now open and namelist read statements that are the
+first I/O statements executed should work right in that context.
+Adjust namelist input to treat a subscripted name whose subscripts do
+not involve colons similarly to the name without a subscript:  accept
+several values, stored in successive elements starting at the
+indicated subscript.  Adjust namelist output to quote character
+strings (avoiding confusion with arrays of character strings).
+
+Thu Sep  7 00:36:04 EDT 1995
+  Fix glitch in integer*8 exponentiation function: it's pow_qq, not
+pow_qi.
+  libi77: fix some bugs with -DAllow_TYQUAD (for integer*8); when
+looking for the &name that starts NAMELIST input, treat lines whose
+first nonblank character is something other than &, $, or ? as
+comment lines (i.e., ignore them), unless rsne.c is compiled with
+-DNo_Namelist_Comments.
+
+Thu Sep  7 09:05:40 EDT 1995
+  libi77: rdfmt.c:  one more tweak for -DAllow_TYQUAD.
+
+Tue Sep 19 00:03:02 EDT 1995
+  Adjust handling of floating-point subscript bounds (a questionable
+f2c extension) so subscripts in the generated C are of integral type.
+  Move #define of roundup to proc.c (where its use is commented out);
+version.c left at 19950918.
+
+Wed Sep 20 17:24:19 EDT 1995
+  Fix bug in handling ichar() under -h.
+
+Thu Oct  5 07:52:56 EDT 1995
+  libi77: wrtfmt.c: fix bug with t editing (f__cursor was not always
+zeroed in mv_cur).
+
+Tue Oct 10 10:47:54 EDT 1995
+  Under -ext, warn about X**-Y and X**+Y.  Following the original f77,
+f2c treats these as X**(-Y) and X**(+Y), respectively.  (They are not
+allowed by the official Fortran 77 Standard.)  Some Fortran compilers
+give a bizarre interpretation to larger contexts, making multiplication
+noncommutative: they treat X**-Y*Z as X**(-Y*Z) rather than X**(-Y)*Z,
+which, following the rules of Fortran 77, is the same as (X**(-Y))*Z.
+
+Wed Oct 11 13:27:05 EDT 1995
+  libi77: move defs of f__hiwater, f__svic, f__icptr from wrtfmt.c
+to err.c.  This should work around a problem with buggy loaders and
+sometimes leads to smaller executable programs.
+
+Sat Oct 21 23:54:22 EDT 1995
+  Under -h, fix bug in the treatment of ichar('0') in arithmetic
+expressions.
+  Demote to -dneg (a new command-line option not mentioned in the
+man page) imitation of the original f77's treatment of unary minus
+applied to a REAL operand (yielding a DOUBLE PRECISION result).
+Previously this imitation (which was present for debugging) occurred
+under (the default) -!R.  It is still suppressed by -R.
+
+Tue Nov  7 23:52:57 EST 1995
+  Adjust assigned GOTOs to honor SAVE declarations.
+  Add comments about ranlib to lib[FI]77/README and makefile.
+
+Tue Dec 19 22:54:06 EST 1995
+  libf77: s_cat.c: fix bug when 2nd or later arg overlaps lhs.
+
+Tue Jan  2 17:54:00 EST 1996
+  libi77: rdfmt.c: move #include "ctype.h" up before "stdlib.h"; no
+change to Version.c.
+
+Sun Feb 25 22:20:20 EST 1996
+  Adjust expr.c to permit raising the integer constants 1 and -1 to
+negative constant integral powers.
+  Avoid faulting when -T and -d are not followed by a directory name
+(immediately, without intervening spaces).
+
+Wed Feb 28 12:49:01 EST 1996
+  Fix a glitch in handling complex parameters assigned a "wrong" type.
+Example:
+	complex d, z
+	parameter(z = (0d0,0d0))
+	data d/z/	! elicited "non-constant initializer"
+	call foo(d)
+	end
+
+Thu Feb 29 00:53:12 EST 1996
+  Fix bug in handling character parameters assigned a char() value.
+Example:
+	character*2 b,c
+	character*1 esc
+	parameter(esc = char(27))
+	integer i
+	data (b(i:i),i=1,2)/esc,'a'/
+	data (c(i:i),i=1,2)/esc,'b'/	! memory fault
+	call foo(b,c)
+	end
+
+Fri Mar  1 23:44:51 EST 1996
+  Fix glitch in evaluating .EQ. and .NE. when both operands are
+logical constants (.TRUE. or .FALSE.).
+
+Fri Mar 15 17:29:54 EST 1996
+  libi77: lread.c, rsfe.c: honor END= in READ stmts with empty iolist.
+
+Tue Mar 19 23:08:32 EST 1996
+  lex.c: arrange for a "statement" consisting of a single short bogus
+keyword to elicit an error message showing the whole keyword.  The
+error message formerly omitted the last letter of the bad keyword.
+  libf77: s_cat.c: supply missing break after overlap detection.
+
+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(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
+
+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 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.