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authorLudovic Courtès <ludo@gnu.org>2012-02-03 10:51:46 +0100
committerLudovic Courtès <ludo@gnu.org>2012-02-03 10:51:46 +0100
commiteb4a14ed47a34e03566261b02c77bfcc02b20134 (patch)
tree23d7e5a0df3aa502b1b5802a0e6c75cfbef87519 /m4/mbstate_t.m4
parent1ba05158ebe033d7d0bdfcfef686eae2c9ea0103 (diff)
downloadguile-eb4a14ed47a34e03566261b02c77bfcc02b20134.tar.gz
Use Gnulib's `regex' module.
This should help with regex portability, as reported in <http://bugs.gnu.org/10684> for Darwin 8.11. * m4/gnulib-cache.m4 (gl_MODULES): Add `regex'. * configure.ac: Remove header checks for regex.h, rxposix.h, and rx/rxposix.h. Remove check for the `regcomp' function. Remove definition of `HAVE_REGCOMP'. Define `ENABLE_REGEX'. * libguile/init.c: Check for `ENABLE_REGEX' instead of `HAVE_REGCOMP'. * libguile/regex-posix.c: Always include <regex.h>. Remove #ifdefs for rxposix.h and co.
Diffstat (limited to 'm4/mbstate_t.m4')
-rw-r--r--m4/mbstate_t.m441
1 files changed, 41 insertions, 0 deletions
diff --git a/m4/mbstate_t.m4 b/m4/mbstate_t.m4
new file mode 100644
index 000000000..61a8190ce
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+++ b/m4/mbstate_t.m4
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+# mbstate_t.m4 serial 13
+dnl Copyright (C) 2000-2002, 2008-2012 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+# From Paul Eggert.
+
+# BeOS 5 has <wchar.h> but does not define mbstate_t,
+# so you can't declare an object of that type.
+# Check for this incompatibility with Standard C.
+
+# AC_TYPE_MBSTATE_T
+# -----------------
+AC_DEFUN([AC_TYPE_MBSTATE_T],
+[
+ AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) dnl for HP-UX 11.11
+
+ AC_CACHE_CHECK([for mbstate_t], [ac_cv_type_mbstate_t],
+ [AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [AC_INCLUDES_DEFAULT[
+/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
+ <wchar.h>.
+ BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+ included before <wchar.h>. */
+#include <stddef.h>
+#include <stdio.h>
+#include <time.h>
+#include <wchar.h>]],
+ [[mbstate_t x; return sizeof x;]])],
+ [ac_cv_type_mbstate_t=yes],
+ [ac_cv_type_mbstate_t=no])])
+ if test $ac_cv_type_mbstate_t = yes; then
+ AC_DEFINE([HAVE_MBSTATE_T], [1],
+ [Define to 1 if <wchar.h> declares mbstate_t.])
+ else
+ AC_DEFINE([mbstate_t], [int],
+ [Define to a type if <wchar.h> does not define.])
+ fi
+])