diff options
Diffstat (limited to 'lib/autoconf/specific.m4')
| -rw-r--r-- | lib/autoconf/specific.m4 | 52 |
1 files changed, 34 insertions, 18 deletions
diff --git a/lib/autoconf/specific.m4 b/lib/autoconf/specific.m4 index 7478ee7f..c209c646 100644 --- a/lib/autoconf/specific.m4 +++ b/lib/autoconf/specific.m4 @@ -383,6 +383,8 @@ AC_BEFORE([$0], [AC_RUN_IFELSE])dnl dnl Use a different key than __EXTENSIONS__, as that name broke existing dnl configure.ac when using autoheader 2.62. +dnl The macros below are in alphabetical order ignoring leading _ or __ +dnl prefixes. AH_VERBATIM([USE_SYSTEM_EXTENSIONS], [/* Enable extensions on AIX 3, Interix. */ #ifndef _ALL_SOURCE @@ -392,10 +394,25 @@ dnl configure.ac when using autoheader 2.62. #ifndef _DARWIN_C_SOURCE # undef _DARWIN_C_SOURCE #endif +/* DragonflyBSD and FreeBSD's headers enable extensions by default; + extensions can be turned off by requesting a strict ISO C or POSIX + environment, but there is no way to explicitly turn them on. */ +/* Enable general extensions on Solaris. */ +#ifndef __EXTENSIONS__ +# undef __EXTENSIONS__ +#endif /* Enable GNU extensions on systems that have them. */ #ifndef _GNU_SOURCE # undef _GNU_SOURCE #endif +/* Enable NetBSD extensions on NetBSD. */ +#ifndef _NETBSD_SOURCE +# undef _NETBSD_SOURCE +#endif +/* Enable OpenBSD extensions on OpenBSD. */ +#ifndef _OPENBSD_SOURCE +# undef _OPENBSD_SOURCE +#endif /* Enable threading extensions on Solaris. */ #ifndef _POSIX_PTHREAD_SEMANTICS # undef _POSIX_PTHREAD_SEMANTICS @@ -438,10 +455,6 @@ dnl configure.ac when using autoheader 2.62. #ifndef _XOPEN_SOURCE # undef _XOPEN_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__], @@ -451,20 +464,6 @@ dnl configure.ac when using autoheader 2.62. ]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([_DARWIN_C_SOURCE]) - AC_DEFINE([_GNU_SOURCE]) - AC_DEFINE([_POSIX_PTHREAD_SEMANTICS]) - AC_DEFINE([__STDC_WANT_IEC_60559_ATTRIBS_EXT__]) - AC_DEFINE([__STDC_WANT_IEC_60559_BFP_EXT__]) - AC_DEFINE([__STDC_WANT_IEC_60559_DFP_EXT__]) - AC_DEFINE([__STDC_WANT_IEC_60559_FUNCS_EXT__]) - AC_DEFINE([__STDC_WANT_IEC_60559_TYPES_EXT__]) - AC_DEFINE([__STDC_WANT_LIB_EXT2__]) - AC_DEFINE([__STDC_WANT_MATH_SPEC_FUNCS__]) - AC_DEFINE([_TANDEM_SOURCE]) AC_CACHE_CHECK([whether _XOPEN_SOURCE should be defined], [ac_cv_should_define__xopen_source], [ac_cv_should_define__xopen_source=no @@ -479,6 +478,23 @@ dnl configure.ac when using autoheader 2.62. #include <wchar.h> mbstate_t x;]])], [ac_cv_should_define__xopen_source=yes])])]) + + AC_DEFINE([_ALL_SOURCE]) + AC_DEFINE([_DARWIN_C_SOURCE]) + test $ac_cv_safe_to_define___extensions__ = yes && + AC_DEFINE([__EXTENSIONS__]) + AC_DEFINE([_GNU_SOURCE]) + AC_DEFINE([_NETBSD_SOURCE]) + AC_DEFINE([_OPENBSD_SOURCE]) + AC_DEFINE([_POSIX_PTHREAD_SEMANTICS]) + AC_DEFINE([__STDC_WANT_IEC_60559_ATTRIBS_EXT__]) + AC_DEFINE([__STDC_WANT_IEC_60559_BFP_EXT__]) + AC_DEFINE([__STDC_WANT_IEC_60559_DFP_EXT__]) + AC_DEFINE([__STDC_WANT_IEC_60559_FUNCS_EXT__]) + AC_DEFINE([__STDC_WANT_IEC_60559_TYPES_EXT__]) + AC_DEFINE([__STDC_WANT_LIB_EXT2__]) + AC_DEFINE([__STDC_WANT_MATH_SPEC_FUNCS__]) + AC_DEFINE([_TANDEM_SOURCE]) test $ac_cv_should_define__xopen_source = yes && AC_DEFINE([_XOPEN_SOURCE], [500]) ])# AC_USE_SYSTEM_EXTENSIONS |