gcc.git/fixincludes/system.h, branch master

fixincludes: Declare memmem if it's not declared in system headers [PR109293]

2023-03-28T07:26:14+00:00

memmem is not POSIX so the system may lack it.  Then libiberty will
provide an implementation, but it's a "supplemental function" and not
declared in libiberty.h.  We need to declare the prototype to use it
then.

See libiberty doc at
https://gcc.gnu.org/onlinedocs/libiberty/Supplemental-Functions.html.

Tested by bootstrapping GCC in the following container environments on
x86_64-linux-gnu:

1. "Vanilla" system with memmem in Glibc.
2. memmem removed from string.h.
3. memmem removed from both string.h and libc.so.

For 3, also verified that memmem from libiberty is linked into fixincl
executable.

Ok for trunk?

fixincludes/ChangeLog:

	PR other/109293
	* configure.ac (AC_CHECK_DECLS): Add memmem.
	* configure: Regenerate.
	* config.h.in: Regenerate.
	* system.h (memmem): Declare if HAVE_DECL_MEMMEM is zero.

Licensing changes to GPLv3 resp. GPLv3 with GCC Runtime Exception.

2009-04-09T15:00:19+00:00

From-SVN: r145841

All files: Update with new FSF address.

2005-08-15T00:50:43+00:00

2005-08-14  Kelley Cook  

	* All files: Update with new FSF address.

From-SVN: r103096

system.h (fopen, [...]): Define these to the unlocked libiberty functions.

2005-04-19T12:37:08+00:00

fixincludes:
	* system.h (fopen, fdopen, freopen): Define these to the unlocked
	libiberty functions.

gcc:
	* system.h (fopen, fdopen, freopen): Define these to the unlocked
	libiberty functions.

libcpp:
	* system.h (fopen, fdopen, freopen): Define these to the unlocked
	libiberty functions.

From-SVN: r98407

configure.ac (fixincludes_UNLOCKED_FUNCS): New.

2005-04-11T21:46:59+00:00

fixincludes:
	* configure.ac (fixincludes_UNLOCKED_FUNCS): New.
	(AC_CHECK_FUNCS, AC_CHECK_DECLS): Check for fixincludes_UNLOCKED_FUNCS.
	* system.h (putchar, getc, getchar, clearerr, feof, fileno,
	fflush, fgetc, fgets, ferror, fread): Redefine to the associated
	_unlocked function.
	(fwrite_unlocked): Fix prototype.

	* configure, config.h.in: Regenerate.

gcc:
	PR/17092
	* configure.ac (gcc_UNLOCKED_FUNCS): New.
	(AC_CHECK_FUNCS, AC_CHECK_DECLS): Check for gcc_UNLOCKED_FUNCS.
	* system.h (putchar, getc, getchar, clearerr, feof, fileno,
	fflush, fgetc, fgets, ferror, fread): Redefine to the associated
	_unlocked function.
	(fwrite_unlocked): Fix prototype.

	* configure, config.in: Regenerate.

libcpp:
	* configure.ac (libcpp_UNLOCKED_FUNCS): New.
	(AC_CHECK_FUNCS, AC_CHECK_DECLS): Check for libcpp_UNLOCKED_FUNCS.
	* system.h (putchar, getc, getchar, clearerr, feof, fileno,
	fflush, fgetc, fgets, ferror, fread): Redefine to the associated
	_unlocked function.
	(fwrite_unlocked): Fix prototype.

	* configure, config.in: Regenerate.

From-SVN: r97986

Made fixincludes a toplevel build module.

2004-08-31T09:27:00+00:00

toplevel:
2004-08-31  Paolo Bonzini  

	* Makefile.def (build_modules): Add fixincludes.
	(dependencies): Make gcc depend on fixincludes.
	* configure.in (build_tools): Add fixincludes.
	(build_configdirs): Always include build_libs.
	* Makefile.in: Regenerate.
	* configure: Regenerate.

contrib:
2004-08-04  Paolo Bonzini  

	* gcc_update: Add fixincludes.

fixincludes:
2004-08-31  Paolo Bonzini  

	* .cvsignore: New.
	* Makefile.in: From gcc/fixinc/Makefile.in, making it fully
	autoconfiscated.
	* configure.ac: New.
	* config.h.in: Generate.
	* configure: Generate.
	* aclocal.m4: New.
	* fixlib.h: Remove inclusions of gcc files.
	* system.h: New.

	Other files copied from gcc/fixinc.

gcc:
2004-08-31  Paolo Bonzini  

	* Makefile.in (build_subdir): New substitution.
	(fixinc.sh): Simplify heavily since fixincludes is already built.
	(stmp-fixinc): Depend on specs.ready.
	(install-mkheaders): Use new location of fixincludes.
	(clean): Do not descend into fixinc.
	(FORBUILD): Replace with ../$(build_subdir).
	* configure.ac (build_subdir): Substitute.
	(FORBUILD): Do not set.
	(all_outputs): Remove fixinc/Makefile.
	(default commands): Do not create links in fixinc.
	* mkfixinc.sh: New, from fixinc/mkfixinc.sh without
	the fixincludes configuration steps and substituting
	@FIXINCL@ in fixinc.in.
	* fixinc.in: New, from fixinc/fixincl.sh.

	* fixinc/*: Removed.

From-SVN: r86824