diff options
Diffstat (limited to 'gl/m4/extensions.m4')
| -rw-r--r-- | gl/m4/extensions.m4 | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/gl/m4/extensions.m4 b/gl/m4/extensions.m4 index bcbb3cee..611fcfdb 100644 --- a/gl/m4/extensions.m4 +++ b/gl/m4/extensions.m4 @@ -1,7 +1,7 @@ -# serial 5 -*- Autoconf -*- +# serial 6 -*- Autoconf -*- # Enable extensions on systems that normally disable them. -# Copyright (C) 2003, 2006, 2007 Free Software Foundation, Inc. +# Copyright (C) 2003, 2006-2008 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. @@ -24,6 +24,8 @@ AC_DEFUN([AC_USE_SYSTEM_EXTENSIONS], [AC_BEFORE([$0], [AC_COMPILE_IFELSE])dnl AC_BEFORE([$0], [AC_RUN_IFELSE])dnl + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_CHECK_HEADER([minix/config.h], [MINIX=yes], [MINIX=]) if test "$MINIX" = yes; then AC_DEFINE([_POSIX_SOURCE], [1], @@ -36,6 +38,16 @@ AC_BEFORE([$0], [AC_RUN_IFELSE])dnl [Define to 1 if on MINIX.]) fi + dnl HP-UX 11.11 defines mbstate_t only if _XOPEN_SOURCE is defined to 500, + dnl regardless of whether the flags -Ae or _D_HPUX_SOURCE=1 are already + dnl provided. + case "$host_os" in + hpux*) + AC_DEFINE([_XOPEN_SOURCE], [500], + [Define to 500 only on HP-UX.]) + ;; + esac + AH_VERBATIM([__EXTENSIONS__], [/* Enable extensions on AIX 3, Interix. */ #ifndef _ALL_SOURCE @@ -61,9 +73,9 @@ AC_BEFORE([$0], [AC_RUN_IFELSE])dnl 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 && |