diff options
Diffstat (limited to 'lib/replace')
| -rw-r--r-- | lib/replace/autoconf-2.60.m4 | 50 |
1 files changed, 37 insertions, 13 deletions
diff --git a/lib/replace/autoconf-2.60.m4 b/lib/replace/autoconf-2.60.m4 index 2d5dbc1661..b2694fde62 100644 --- a/lib/replace/autoconf-2.60.m4 +++ b/lib/replace/autoconf-2.60.m4 @@ -181,32 +181,56 @@ AC_DEFUN([AC_PROG_CC_C99], # typically due to standards-conformance issues. m4_ifndef([AC_USE_SYSTEM_EXTENSIONS],[ AC_DEFUN([AC_USE_SYSTEM_EXTENSIONS], -[ - AC_BEFORE([$0], [AC_COMPILE_IFELSE]) - AC_BEFORE([$0], [AC_RUN_IFELSE]) +[AC_BEFORE([$0], [AC_COMPILE_IFELSE])dnl +AC_BEFORE([$0], [AC_RUN_IFELSE])dnl - AC_REQUIRE([AC_GNU_SOURCE]) - AC_REQUIRE([AC_AIX]) - AC_REQUIRE([AC_MINIX]) + AC_CHECK_HEADER([minix/config.h], [MINIX=yes], [MINIX=]) + if test "$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 Solaris. */ -#ifndef __EXTENSIONS__ -# undef __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]) +#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([ + [AC_LANG_PROGRAM([[ # define __EXTENSIONS__ 1 - AC_INCLUDES_DEFAULT])], + ]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 ]) |