X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fwcsrtombs.m4;h=143b1befdf53a92aafcad4db36c62c9bf7294778;hb=060a5ab2b25c067185f3c3c077287c65723ea985;hp=cd51506a2b8864ab801e0a5c3352532ec2cb7c68;hpb=e5c4538ab6673e3f3f66fd1ad715c201cf34907c;p=gnulib.git

diff --git a/m4/wcsrtombs.m4 b/m4/wcsrtombs.m4
index cd51506a2..143b1befd 100644
--- a/m4/wcsrtombs.m4
+++ b/m4/wcsrtombs.m4
@@ -1,4 +1,4 @@
-# wcsrtombs.m4 serial 9
+# wcsrtombs.m4 serial 11
 dnl Copyright (C) 2008-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -14,6 +14,22 @@ AC_DEFUN([gl_FUNC_WCSRTOMBS],
   AC_CHECK_FUNCS_ONCE([wcsrtombs])
   if test $ac_cv_func_wcsrtombs = no; then
     HAVE_WCSRTOMBS=0
+    AC_CHECK_DECLS([wcsrtombs],,, [[
+/* 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_wcsrtombs = yes; then
+      dnl On Minix 3.1.8, the system's <wchar.h> declares wcsrtombs() although
+      dnl it does not have the function. Avoid a collision with gnulib's
+      dnl replacement.
+      REPLACE_WCSRTOMBS=1
+    fi
   else
     if test $REPLACE_MBSTATE_T = 1; then
       REPLACE_WCSRTOMBS=1
@@ -34,11 +50,6 @@ AC_DEFUN([gl_FUNC_WCSRTOMBS],
       esac
     fi
   fi
-  if test $HAVE_WCSRTOMBS = 0 || test $REPLACE_WCSRTOMBS = 1; then
-    AC_LIBOBJ([wcsrtombs])
-    AC_LIBOBJ([wcsrtombs-state])
-    gl_PREREQ_WCSRTOMBS
-  fi
 ])
 
 dnl Test whether the wcsrtombs implementation stores a non-NULL source pointer