diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2008-03-27 17:16:55 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2008-03-27 17:16:55 +0300 |
| commit | 75cb6624053d20f610d2a839f503109f3cb979ea (patch) | |
| tree | 9dedd50b3102e9cc9d3308cb8cbe809489ddb777 /config/extensions.m4 | |
| parent | 124d4c50103e42048dd76d0ab549de6bc216413b (diff) | |
2008-03-27 Paolo Bonzini <bonzini@gnu.org>
* Makefile.tpl (PICFLAG, PICFLAG_FOR_TARGET): Remove.
* Makefile.in: Regenerate.
config:
2008-03-27 Paolo Bonzini <bonzini@gnu.org>
* extensions.m4: New.
2008-03-27 Paolo Bonzini <bonzini@gnu.org>
* mh-armpic: Remove.
* mh-i370pic: Remove.
* mh-m68kpic: Remove.
* mh-ppcpic: Remove.
* mh-sparcpic: Remove.
* mh-ia64pic: Remove.
* mh-papic: Remove.
* mh-s390pic: Remove.
* mh-x86pic: Remove.
libiberty:
2008-03-27 Paolo Bonzini <bonzini@gnu.org>
* configure.ac (frags): Don't set, use frag instead.
(PICFLAG): Set here and substitute.
* Makefile.in (PICFLAG): Substitute from autoconf.
* configure: Regenerate.
Diffstat (limited to 'config/extensions.m4')
| -rw-r--r-- | config/extensions.m4 | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/config/extensions.m4 b/config/extensions.m4 new file mode 100644 index 000000000..8ae4a675e --- /dev/null +++ b/config/extensions.m4 @@ -0,0 +1,76 @@ +# serial 5 -*- Autoconf -*- +# Enable extensions on systems that normally disable them. + +# Copyright (C) 2003, 2006, 2007 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This definition of AC_USE_SYSTEM_EXTENSIONS is stolen from CVS +# Autoconf. Perhaps we can remove this once we can assume Autoconf +# 2.62 or later everywhere, but since CVS Autoconf mutates rapidly +# enough in this area it's likely we'll need to redefine +# AC_USE_SYSTEM_EXTENSIONS for quite some time. + +# AC_USE_SYSTEM_EXTENSIONS +# ------------------------ +# Enable extensions on systems that normally disable them, +# typically due to standards-conformance issues. +# Remember that #undef in AH_VERBATIM gets replaced with #define by +# AC_DEFINE. The goal here is to define all known feature-enabling +# macros, then, if reports of conflicts are made, disable macros that +# cause problems on some platforms (such as __EXTENSIONS__). +AC_DEFUN([AC_USE_SYSTEM_EXTENSIONS], +[AC_BEFORE([$0], [AC_COMPILE_IFELSE])dnl +AC_BEFORE([$0], [AC_RUN_IFELSE])dnl + + AC_CHECK_HEADER([minix/config.h], [MINIX=yes], [MINIX=]) + if test "$MINIX" = yes; then + AC_DEFINE([_POSIX_SOURCE], [1], + [Define to 1 if you need to in order for `stat' and other + things to work.]) + AC_DEFINE([_POSIX_1_SOURCE], [2], + [Define to 2 if the system does not provide POSIX.1 features + except with this defined.]) + AC_DEFINE([_MINIX], [1], + [Define to 1 if on MINIX.]) + fi + + AH_VERBATIM([__EXTENSIONS__], +[/* Enable extensions on AIX 3, Interix. */ +#ifndef _ALL_SOURCE +# undef _ALL_SOURCE +#endif +/* Enable GNU extensions on systems that have them. */ +#ifndef _GNU_SOURCE +# undef _GNU_SOURCE +#endif +/* Enable threading extensions on Solaris. */ +#ifndef _POSIX_PTHREAD_SEMANTICS +# undef _POSIX_PTHREAD_SEMANTICS +#endif +/* Enable extensions on HP NonStop. */ +#ifndef _TANDEM_SOURCE +# undef _TANDEM_SOURCE +#endif +/* Enable general extensions on Solaris. */ +#ifndef __EXTENSIONS__ +# undef __EXTENSIONS__ +#endif +]) + AC_CACHE_CHECK([whether it is safe to define __EXTENSIONS__], + [ac_cv_safe_to_define___extensions__], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([ +# define __EXTENSIONS__ 1 + AC_INCLUDES_DEFAULT])], + [ac_cv_safe_to_define___extensions__=yes], + [ac_cv_safe_to_define___extensions__=no])]) + test $ac_cv_safe_to_define___extensions__ = yes && + AC_DEFINE([__EXTENSIONS__]) + AC_DEFINE([_ALL_SOURCE]) + AC_DEFINE([_GNU_SOURCE]) + AC_DEFINE([_POSIX_PTHREAD_SEMANTICS]) + AC_DEFINE([_TANDEM_SOURCE]) +])# AC_USE_SYSTEM_EXTENSIONS + |