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-rw-r--r--m4/mbrtowc.m428
1 files changed, 18 insertions, 10 deletions
diff --git a/m4/mbrtowc.m4 b/m4/mbrtowc.m4
index c353862..4c9f388 100644
--- a/m4/mbrtowc.m4
+++ b/m4/mbrtowc.m4
@@ -1,5 +1,5 @@
-# mbrtowc.m4 serial 22
-dnl Copyright (C) 2001-2002, 2004-2005, 2008-2011 Free Software Foundation,
+# mbrtowc.m4 serial 25
+dnl Copyright (C) 2001-2002, 2004-2005, 2008-2013 Free Software Foundation,
dnl Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -15,6 +15,22 @@ AC_DEFUN([gl_FUNC_MBRTOWC],
AC_CHECK_FUNCS_ONCE([mbrtowc])
if test $ac_cv_func_mbrtowc = no; then
HAVE_MBRTOWC=0
+ AC_CHECK_DECLS([mbrtowc],,, [[
+/* 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>
+]])
+ if test $ac_cv_have_decl_mbrtowc = yes; then
+ dnl On Minix 3.1.8, the system's <wchar.h> declares mbrtowc() although
+ dnl it does not have the function. Avoid a collision with gnulib's
+ dnl replacement.
+ REPLACE_MBRTOWC=1
+ fi
else
if test $REPLACE_MBSTATE_T = 1; then
REPLACE_MBRTOWC=1
@@ -53,11 +69,6 @@ AC_DEFUN([gl_FUNC_MBRTOWC],
esac
fi
fi
- if test $HAVE_MBRTOWC = 0 || test $REPLACE_MBRTOWC = 1; then
- gl_REPLACE_WCHAR_H
- AC_LIBOBJ([mbrtowc])
- gl_PREREQ_MBRTOWC
- fi
])
dnl Test whether mbsinit() and mbrtowc() need to be overridden in a way that
@@ -88,9 +99,6 @@ AC_DEFUN([gl_MBSTATE_T_BROKEN],
else
REPLACE_MBSTATE_T=1
fi
- if test $REPLACE_MBSTATE_T = 1; then
- gl_REPLACE_WCHAR_H
- fi
])
dnl Test whether mbrtowc puts the state into non-initial state when parsing an