binutils-gdb/binutils/ChangeLog
Per Bothner e2fe2df4d3 * Makefile.in (dist): Fix permissions before release.
* size.c:  Use bfd_size_type (and long) where appropriate.
	* ar.c:  Make writing a map the default, to be compatible
	with SYSV and Posix.2.  Remove some bogus kludges that
	handled __.SYMDEF directly.
	* NEWS:  New file.
1992-12-16 02:13:17 +00:00

613 lines
20 KiB
Plaintext

Tue Dec 15 18:05:07 1992 Per Bothner (bothner@cygnus.com)
* Makefile.in (dist): Fix permissions before release.
* size.c: Use bfd_size_type (and long) where appropriate.
* ar.c: Make writing a map the default, to be compatible
with SYSV and Posix.2. Remove some bogus kludges that
handled __.SYMDEF directly.
* NEWS: New file.
Mon Nov 9 13:36:53 1992 david d `zoo' zuhn (zoo at cirdan.cygnus.com)
* Makefile.in: flex no longer needs the -S flag
Sat Nov 7 15:06:13 1992 david d `zoo' zuhn (zoo at cirdan.cygnus.com)
* ar.c (extract_file): utime needs a pointer to a utimbuf
* Makefile.in: handle -I includes better, adding $(BASEDIR)/bfd to
the list (since some of the bfd/hosts/*.h files include other
files from that directory)
Fri Nov 6 00:12:51 1992 John Gilmore (gnu@cygnus.com)
* i960-pinsn.c (MEM_MAX, MEM_SIZ): Set upper bound properly.
Thu Nov 5 03:37:15 1992 John Gilmore (gnu@cygnus.com)
Clean up some old BFD ansification macros.
* arsup.h, bucomm.h, objdump.h: Remove EXFUN from binutils.
It still remains as a local macro in gmalloc.c, which is derived
from some other copy of GNU Malloc somewhere (FIXME).
* ar.c, objdump.c, size.c: Replace EXFUN with PROTO. Make static
fns really static.
* arsup.h: Declare extract_files.
Mon Nov 2 12:42:11 1992 Ian Lance Taylor (ian@cygnus.com)
* ar.c (extract_file): instead of checking USG: if POSIX_UTIME,
use utime and utimbuf structure, otherwise if USE_UTIME use utime
and array of two longs, otherwise use utimes.
Thu Oct 15 13:57:35 1992 Per Bothner (bothner@cygnus.com)
* binutils.tex: Document yesterday's changes to strip and copy.
Wed Oct 14 13:22:14 1992 Per Bothner (bothner@cygnus.com)
* copy.c: Re-do command-line parsing to use getopt_long().
Add long option names. Re-think option letters to be more
consistent.
* copy.c: New function filter_symbols() for stripping only
debug-symbols and/or local symbols. Use these to support
the previously-missing options of the old FSF strip.
Tue Oct 13 01:24:20 1992 John Gilmore (gnu@cygnus.com)
* configure.in (host): Use ${srcdir}/../bfd/configure.host rather
than repeating a copy of it here.
Wed Oct 7 12:53:52 1992 Ken Raeburn (raeburn@cygnus.com)
* copy.c (main): Even if is_strip, accept -d argument indicating
alternate output format. Needed by gdb for Nindy.
* m68k-pinsn.c (print_insn_arg): Handle new "`" operand type.
Tue Oct 6 16:33:56 1992 Jeffrey Osier (jeffrey@cygnus.com)
* binutils.texi: added documentation for "copy"
Tue Oct 6 14:22:56 1992 Per Bothner (bothner at PersSony)
* Makefile.in (*clean rules): Some cleaning up.
* Makefile.in (dist): Make diststuff in gprof for a dist.
* ar.c (do_show_version): New function.
* ar.c (main): Fix so "ar -V" works.
Thu Oct 1 22:44:45 1992 david d `zoo' zuhn (zoo at cirdan.cygnus.com)
* configure.in: now uses the cpu-vendor-os triple instead of
nested cases.
Fri Sep 25 22:41:08 1992 John Gilmore (gnu@cygnus.com)
* i960-pinsn.c: Change bzero to memset.
* sparc-pinsn.c: Change index to strchr.
Mon Sep 21 14:39:56 1992 Ian Lance Taylor (ian@cygnus.com)
* m68k-pinsn (print_insn_arg, fetch_arg): added support for
operands to memory management instructions, from WRS.
Tue Sep 15 15:26:38 1992 Ian Lance Taylor (ian@cygnus.com)
* Makefile.in (install): if $(tooldir) exists, install nm and
strip in $(tooldir)/bin.
Thu Sep 3 11:57:40 1992 Per Bothner (bothner@rtl.cygnus.com)
* Makefile.in: Let's call it version 2.0.
Wed Sep 2 00:25:13 1992 Per Bothner (bothner@rtl.cygnus.com)
* Makefile.in: Bump to version 0.98.
* TODO, README: Minor updates.
* Makefile.in: Added mostlyclean, distclean rules,
and cleaned up clean, realclean.
Sun Aug 30 21:18:59 1992 Ian Lance Taylor (ian@cygnus.com)
* Makefile.in: map program names through program_transform_name
when installing.
Sun Aug 30 18:09:03 1992 Per Bothner (bothner@rtl.cygnus.com)
* Makefile.in: Bump to versions 1.97.90.
* cplus-dem.c: Removed. Was nowhere used - and if some
programs are changed to to demangling should now use the
versions in libiberty.
Thu Aug 27 12:58:09 1992 Brendan Kehoe (brendan@cygnus.com)
* configure.in: add we32k
Mon Aug 24 14:53:42 1992 Steve Chamberlain (sac@thepub.cygnus.com)
* ar.c (map_over_members): if the element of the archive has a
null name, fill it in.
* nm.c (do_one_rel_file): only warn if a bfd's flags say there
will be symbols and there aren't any.
Wed Aug 19 11:20:25 1992 Ian Lance Taylor (ian@cygnus.com)
* m68k-pinsn.c: handle new operand type 'r', introduced for cas2.
Tue Aug 18 20:45:48 1992 Rob Savoye (rob@cygnus.com)
* nm.c objdump.c: Added support for a +version (-V)
to print the version number.
* ar.c, copy.c: Added support for a -V option to print
the version number.
Tue Aug 18 13:28:44 1992 Ian Lance Taylor (ian@cygnus.com)
* config/mh-apollo68v: removed -g from CC definition.
* Makefile.in: always create installation directories.
Mon Aug 17 18:33:41 1992 Per Bothner (bothner@rtl.cygnus.com)
* m68k-pinsn.c: Minor fix in style of output (don't use
range to indicate floating point control registers).
Tue Aug 11 23:42:21 1992 Per Bothner (bothner@cygnus.com)
* ar.c (main): Don't *always* set the verbose flag!
Wed Aug 5 11:25:27 1992 Per Bothner (bothner@rtl.cygnus.com)
* copy.c: When is_strip (because it is invoked as the strip
program), follow traditional argv processing:
'strip file1 file2' now strips file1 and file2, rather
than stripping file1 (as input), leaving output in file2.
Mon Jul 27 16:28:08 1992 Per Bothner (bothner@rtl.cygnus.com)
* objdump.c (display_info, display_info_table): Call
bfd_set_format() on dummy bfd before using it (twice).
* ar.c: Make sure archive is created on command 'r'
even when no elements are inserted. (Clean up and
simplify some non-working related code.)
Mon Jul 20 02:48:38 1992 D. V. Henkel-Wallace (gumby@cygnus.com)
* configure.in: hppa support doesn't assume hp OS (from sef).
Sat Jul 18 14:35:22 1992 david d `zoo' zuhn (zoo at cirdan.cygnus.com)
* configure.in: recognize hppa hosts (bsd & hpux), error messages
to stderr, not stdout
Fri Jul 17 18:39:44 1992 K. Richard Pixley (rich@rtl.cygnus.com)
* ar.1, binutils.texi, i960-pinsn.c, nm.1, objdump.1, ranlib.1,
size.1, sparc-pinsn.c, strip.1: removed rcsid's.
Thu Jul 16 16:55:24 1992 K. Richard Pixley (rich@rtl.cygnus.com)
* Makefile.dos: removed rcsid.
Thu Jul 16 08:23:07 1992 Steve Chamberlain (sac@thepub.cygnus.com)
* objdump.c (display_bfd): print state of BFD_IS_RELAXABLE too
Tue Jun 30 20:26:15 1992 D. V. Henkel-Wallace (gumby@cygnus.com)
* Makefile.in: Add program_suffix (parallel to program_prefix)
Thu Jun 25 04:52:45 1992 John Gilmore (gnu at cygnus.com)
* nm.c (sorters): Lint. Remove excess whitespace.
Wed Jun 24 13:48:07 1992 Per Bothner (bothner@cygnus.com)
* nm.c (valueof macro): Add missing parentheses.
(Their lack screwed up numeric_forward().)
Sun Jun 14 10:33:27 1992 John Gilmore (gnu at cygnus.com)
* objdump.c (dump_elf_stabs): Also dump .stab.index and
.stab.excl sections.
(dump_elf_stabs_1): Split out main body of old dump_elf_stabs.
* objdump.1, binutils.texi: Document new sections dumped.
Fri Jun 12 22:23:35 1992 John Gilmore (gnu at cygnus.com)
* size.c, objdump.c, bucomm.c: Lint.
Thu Jun 11 01:19:06 1992 John Gilmore (gnu at cygnus.com)
* objdump.c (dump_elf_stabs): New feature: --stabs prints out a
.stab section from an ELF file. Installed under #ifdef
ELF_STAB_DISPLAY so it can be easily disabled, since it requires
bfd-internals header files and such.
* objdump.1, binutils.texi: Update for --stabs. Also fix
objdump's doc to use -- rather than + for long options.
(FIXME: Not yet fixed everywhere in binutils.texinfo.)
Wed Jun 10 07:53:24 1992 Steve Chamberlain (sac@thepub.cygnus.com)
* objdump.c(display_info), patches from
mohring@informatik.tu-muenchen.de to print the table much more
nicely.
Thu May 28 13:36:16 1992 Per Bothner (bothner@rtl.cygnus.com)
* objdump.c: Add another enum->int cast, for the sake of
old compilers (such as PCC).
Wed May 27 13:01:44 1992 Per Bothner (bothner@rtl.cygnus.com)
* arlex.l: Don't include <sysdep.h> (unneeded conflicts).
Add declaration of strdup().
Fri May 22 13:40:37 1992 Per Bothner (bothner@cygnus.com)
* Makefile.in: Use srcdir instead of VPATH in ldgram/ldlex
rules, since these are used when building a distribution.
* Makefile.in (arlex.c): Don't re-direct output, since that
leaves a bogus output files if it fails.
* arlex.l: Make work with lex, for what it's worth.
* Makefile.in: Better lex support.
* Makefile.in (dist): Generate flex and bison outputs
for distribution.
Thu May 14 17:17:59 1992 K. Richard Pixley (rich@rtl.cygnus.com)
* Makefile.in: get BISON definition right.
Fri May 8 07:47:08 1992 K. Richard Pixley (rich@cygnus.com)
* sanity.sh: default TMPDIR to ".".
Thu May 7 12:34:50 1992 Roland H. Pesch (pesch@fowanton.cygnus.com)
* binutils.texi: add doc for ar command language.
Wed May 6 18:05:36 1992 Steve Chamberlain (sac@thepub.cygnus.com)
* arparse.y: make END call ar_end
* arsup.c (ar_end): added, deletes temp file if archive session
aborted.
Wed May 6 11:08:53 1992 K. Richard Pixley (rich@rtl.cygnus.com)
* Makefile.in: use bison & flex from ../ if they exist. Also,
FLEX->LEX.
* sanity.sh: remove temporary directory when finished.
Tue May 5 12:00:58 1992 Per Bothner (bothner@rtl.cygnus.com)
* Makefile.in: Bump to version 1.97.
* ar.c: Declare errno for machines that need it.
Mon May 4 23:29:51 1992 John Gilmore (gnu@cygnus.com)
* objdump.c (display_info): Handle error cases without coredump.
Close the dummy temporary file we open in the loop.
* Makefile.in (arsup.o): Add kludge to build with Sun Make.
Fri May 1 16:20:23 1992 K. Richard Pixley (rich@cygnus.com)
* Makefile.in: added test-install target.
* sanity.sh: new file.
* Makefile.in: use sanity test on make check.
Tue Apr 21 13:38:37 1992 K. Richard Pixley (rich@cygnus.com)
* Makefile.in: rework CFLAGS so that they can be passed on the
command line to make. Remove MINUS_G. Default CFLAGS to -g.
Wed Apr 15 14:33:07 1992 Steve Chamberlain (sac@thepub.cygnus.com)
* arsup.c, arsup.h, arparse.y, arlex.l: support for archive
scripting language.
Fri Mar 6 21:54:53 1992 K. Richard Pixley (rich@cygnus.com)
* Makefile.in: added check target.
Thu Mar 5 21:35:49 1992 K. Richard Pixley (rich@cygnus.com)
* Makefile.in: added clean-info target.
Tue Mar 3 15:36:37 1992 K. Richard Pixley (rich@rtl.cygnus.com)
* Makefile.in: remove $(COPY_PROG) from PROGS. It shouldn't be
installed. added tooldir and program_prefix.
Wed Feb 26 18:04:40 1992 K. Richard Pixley (rich@cygnus.com)
* Makefile.in, configure.in: removed traces of namesubdir,
-subdirs, $(subdir), $(unsubdir), some rcs triggers. Forced
copyrights to '92, changed some from Cygnus to FSF.
Sun Feb 16 12:53:02 1992 Per Bothner (bothner at cygnus.com)
* Makefile.in: Bump version to 1.96, and remove -beta
suffix from distribution name.
* m68k-pinsn.c: New macro COERCE_SIGNED_CHAR to extract
the signed value of a character (even if chars are unsigned).
* sparc-pinsn.c: Add new operand types.
Thu Feb 6 12:14:19 1992 Steve Chamberlain (sac at rtl.cygnus.com)
* objdump.c (disassemble_data): don't print a section's contents
if it's not loadable (eg bss)
Tue Jan 28 11:11:06 1992 Steve Chamberlain (sac at rtl.cygnus.com)
* m68k-pinsn.c (print_insn_arg): fixed so that -ve branch
displacements don't get printed as large +ve ones.
Fri Jan 24 14:47:53 1992 Steve Chamberlain (sac at rtl.cygnus.com)
* copy.c, nm.c, objdump.c, size.c : changed to use the
new reloc scheme.
Mon Dec 30 18:34:41 1991 Per Bothner (bothner at cygnus.com)
* bucomm.c (print_arelt_descr): Tweek the output format
so that 'ar tv' output follows Posix 1003.2/D11.
Output is now also identical to Sun's (except __.SYMDEF).
Mon Dec 30 06:09:53 1991 John Gilmore (gnu at cygnus.com)
* Makefile.in: Make `make' output more readable.
Wed Dec 18 15:04:45 1991 Per Bothner (bothner at cygnus.com)
* Makefile.in: Bump to version 1.94.
Wed Dec 11 16:48:09 1991 Steve Chamberlain (sac at cygnus.com)
* ar.c: added "b" to fopens for dos
* configdj.bat, makefile.dos new files from DJ
Tue Dec 10 04:07:26 1991 K. Richard Pixley (rich at rtl.cygnus.com)
* Makefile.in: infodir belongs in datadir.
Sat Dec 7 17:09:37 1991 Steve Chamberlain (sac at rtl.cygnus.com)
* bucomm.h: created to hold prototypes of bucomm.c
* objdump.h: created to hold prototyes of objdump.c
* am29k-pinsn.c: include objdump.h
* ar.c: include bucomm.h, get ar.h from the right place and
include libbfd.h
* bucomm.c: defunize bfd_fatal
* copy.c: include bucomm.h, lint.
* i960-pinsn.h: include bucomm.h
* m68k-pinsn.h: lint
* nm.c: include bucomm.h, lint
* objdump.c: lint
* sparc-pinsn.c: include objdump.h
Fri Dec 6 23:02:14 1991 K. Richard Pixley (rich at rtl.cygnus.com)
* Makefile.in: added standards.text support. install using
INSTALL_PROGRAM and INSTALL_DATA.
* configure.in: configure now does all of it's work from objdir so
make file existence tests against ${srcdir}.
Thu Dec 5 22:46:22 1991 K. Richard Pixley (rich at rtl.cygnus.com)
* Makefile.in: idestdir and ddestdir go away. Added copyrights
and shift gpl to v2. Added ChangeLog if it didn't exist. docdir
and mandir now keyed off datadir by default.
Wed Dec 4 22:42:03 1991 Per Bothner (bothner at cygnus.com)
* Makefile.in: Bump to version 1.93.
* Makefile.in: Add make-strip.o:maybe-strip.c dependency
for make versions that provide half-baked VPATH-support (e.g. Sun's).
* size.c: Improvements suggested by
"david d [zoo] zuhn" <zoo@aps1.spa.umn.edu>:
- Don't emit (Berkeley) headers if no files were found.
- Return a non-zero return code on failure.
Sat Nov 30 21:34:19 1991 Steve Chamberlain (sac at rtl.cygnus.com)
Changes due to include file renaming:
* am29k-pinsn.c: a29k-opcode.h -> opcode/a29k.h
* sparc-pinsn.c: sparc-opcode.h -> opcode/sparc.h
* m68k-pinsn.c: m68k-opcode.h -> opcode/m68k.h
* nm.c: stab.gnu.h -> aout/stab_gnu.h
Tue Nov 19 19:20:43 1991 Per Bothner (bothner at cygnus.com)
* README: Mention MINIMIZE flag for bfd's make.
Mon Nov 18 12:05:37 1991 Per Bothner (bothner at cygnus.com)
* README: Various improvements.
Sun Nov 17 23:40:59 1991 Per Bothner (bothner at cygnus.com)
* Makefile.in: Bump to version 1.92.
* version.c, Makefile.in: Get version string from Makefile.
* copy.c, is-strip.c, not-strip.c, maybe-strip.c, Makefile.in:
Make the same change that we earlier did for ar/ranlib:
Generate two different binaries for strip and copy and use
a global variable with different values to distinguish
ostrip from copy. (-1 means to use argv[0] to decide,
so you can get the old behavior, but it is no longer the default).
* copy.c (copy_file): Set EXEC_P of output bfd if input is so.
* copy.c (main): If is_strip==-1, compare last 5 chars
of argv[0], not the whole path.
* copy.c (main): Return 0, not 1.
* copy.c (setup_sections): Fix due to change in bfd_make_section
now failing if asked for a duplicate section.
* strip.c, ostrip.c: Removed obsolete files.
* ar.c, not-ranlib.c, maybe-ranlib.c:
Change encoding of is_ranlib variable to be consistent
with is_strip for strip.copy (i.e -1 to means use argv[0]).
Thu Nov 14 20:11:02 1991 Per Bothner (bothner at cygnus.com)
* version.c (program_version): Update to version 1.92.
Tue Nov 12 16:17:53 1991 Per Bothner (bothner at cygnus.com)
* ar.c (get_pos_bfd): Previous fix was missing a "break".
Thu Nov 7 08:55:56 1991 Steve Chamberlain (sac at cygnus.com)
* am29k-pinsn.c: Fixed bug in mtacc, dmac and fmac instruction
encodings. (Thaks to David Wood)
Sun Nov 3 14:50:23 1991 Per Bothner (bothner at cygnus.com)
* Makefile.in ($(DIST_NAME).tar.Z), TODO: Various fixes.
* ar.c (get_pos_bfd): Fix to handling of before/after
positioning options.
* bucomm.c (fatal): MISSING_VFPRINTF is no longer an issue,
since libiberty contains vfprintf etc if otherwise missing.
* m68k-pinsn.c (print_insn_arg): Support BB/BW/BL
type operands, as used by branch instructions.
* nm.c: Delegate printing of symbols to BFD,
by using bfd_print_symbol to do the formatting.
Mon Oct 28 11:20:47 1991 Steve Chamberlain (steve at cygnus.com)
* ar.c (write_archive.c): added unlink before rename since some
systems can't rename onto an existant file.
Mon Oct 21 09:47:23 1991 Steve Chamberlain (steve at rtl.cygnus.com)
* nm.c: now doesn't crash if a symbol with no section and no
SEC_ABS appears.
Thu Oct 17 15:25:50 1991 Per Bothner (bothner at cygnus.com)
* Makefile.in, version.c: Bump to version 1.91.
Wed Oct 16 11:45:36 1991 Per Bothner (bothner at cygnus.com)
* Makefile.in, ar.c, bucomm.c, copy.c, cplus-dem.c, filemode.c,
i960-pinsn.c, m68k-pinsn.c, nm.c, objdump.c, size.c, sparc-pinsn.c,
* strip.c: Add or update Copyright notice.
* TODO: Add note on 'nm -a'.
* version.c: Update version number to 1.90.
* Makefile.in: Fix making of documentation for dist.
Tue Oct 15 00:17:17 1991 Per Bothner (bothner at cygnus.com)
* README: New file.
* Makefile.in: New kludgy rules for making a tarfile.
* Makefile.in: Fix bindir path.
Mon Oct 14 17:34:29 1991 Roland H. Pesch (pesch at cygnus.com)
* Makefile.in: add targets binutils.mm, binutils.me
Fri Oct 11 22:44:21 1991 John Gilmore (gnu at cygnus.com)
* Makefile.in: Avoid Sun Make VPATH bugs by adding dependencies.
Fri Oct 11 12:51:33 1991 Roland H. Pesch (pesch at cygnus.com)
* Makefile.in: add target "binutils.ms"
* binutils.texinfo: minor restructuring for texi2roff comfort.
Fri Oct 11 04:12:28 1991 John Gilmore (gnu at cygnus.com)
Restructure configuration scheme for bfd, binutils, ld.
* include/sys/h-*.h: Move to bfd/hosts/h-*.h.
* configure.in: Revise to symlink sysdep.h to ../bfd/hosts/h-xxx.h.
Change some config names to match other dirs.
* *.c: Include bfd.h before sysdep.h, so ansidecl and PROTO()
get defined first.
* Makefile.in: Use -I. to get sysdep.h.
Wed Oct 9 22:42:56 1991 Per Bothner (bothner at cygnus.com)
* nm.c (print_symbols): Handle NULL name field of symbol.
* Makefile.in: Removed spurious comment.
Tue Oct 8 16:55:03 1991 Roland H. Pesch (pesch at cygnus.com)
* binutils.texinfo: minor typos, phrasing, formatting fixes.
Tue Oct 8 15:13:20 1991 Per Bothner (bothner at cygnus.com)
* configure.in: Get host file from ../bfd/config, not config.
* config/*: Remove config directory and its files.
Tue Oct 8 13:58:59 1991 Roland H. Pesch (pesch at cygnus.com)
* Makefile.in: new targets binutils.dvi, binutils.info
* binutils.texinfo: remove most remaining FIXME's, delete
references to __.SYMDEF by name
Tue Oct 8 10:23:44 1991 Steve Chamberlain (steve at cygnus.com)
* objdump.c (print_address) Print addresses nicely.
Mon Oct 7 11:31:05 1991 Per Bothner (bothner at cygnus.com)
* ar.c, Makefile.in, new files {is,not,maybe}-ranlib.c:
Make two different binaries for ar and ranlib, instead of
distinguishing them at run time using argv[0].
(Old behavior is still available if you "make ar_with_ranlib",
but it is not the default.)
* ranlib.sh (new): An alternative one-line
shell implementation of ranlib.
Fri Oct 4 21:49:44 1991 John Gilmore (gnu at cygnus.com)
* objdump.c: Cope with renames of a few BFD types & enums.
Fri Oct 4 19:08:09 1991 Roland H. Pesch (pesch at cygnus.com)
* binutils.texinfo: add new file (rudimentary docn)
Mon Sep 30 12:30:39 1991 Per Bothner (bothner at cygnus.com)
* config/hmake-news: Add new file (for Sony NEWSOS3).
* bucomm.c (fatal): Conditionally compile fatal() depending on
MISSING_VFPRINTF, and don't confuse the issue with NO_VARARGS.
* objdump.c (dump_headers): Trivial output format change.
* objdump.c (display_info): Loop over integers, not enums,
to appease old compilers.
Mon May 20 16:14:07 1991 Steve Chamberlain (steve at cygint.cygnus.com)
*objdump.c *nm.c *copy.c :hanged some types to work with 64 bit object files
Thu May 16 16:06:55 1991 Steve Chamberlain (steve at cygint.cygnus.com)
from bother
* objdump.c (print_address): Make disasembled output more
consistent with gdb and as: Add 0x when printing hex.
Don't print extra leading zeros.
Attempt to not print "filename.o".
* objdump.c: Add some enum-to-int casts to accomodate old compilers.
Fri May 3 22:21:44 1991 John Gilmore (gnu at cygint.cygnus.com)
* copy.c: Change =& constructs to = &, since they confuse older
C compilers.