From: Paul Eggert <eggert@cs.ucla.edu>
Date: Mon, 26 Jun 2000 18:53:06 +0000 (+0000)
Subject: Include stdio.h before wchar.h, to work around a bug
X-Git-Url: https://git.dogcows.com/gitweb?a=commitdiff_plain;h=ee21d9f1e319e42037ec8e12b610eb358d26ed7f;p=chaz%2Ftar

Include stdio.h before wchar.h, to work around a bug
in glibc 2.1.3.
---

diff --git a/m4/mbstate_t.m4 b/m4/mbstate_t.m4
index 4cbbfd5..aca2df3 100644
--- a/m4/mbstate_t.m4
+++ b/m4/mbstate_t.m4
@@ -1,4 +1,4 @@
-# serial 1
+# serial 2
 
 # From Paul Eggert.
 
@@ -6,9 +6,14 @@
 # so you can't declare an object of that type.
 # Check for this incompatibility with Standard C.
 
+# Include stdio.h first, because otherwise this test would fail on Linux
+# (at least 2.2.16) because the `_XOPEN_SOURCE 500' definition elicits
+# a syntax error in wchar.h due to the use of undefined __int32_t.
+
 AC_DEFUN(AC_MBSTATE_T_OBJECT,
   [AC_CACHE_CHECK([for mbstate_t object type], ac_cv_type_mbstate_t_object,
-    [AC_TRY_COMPILE([#include <wchar.h>],
+    [AC_TRY_COMPILE([#include <stdio.h>
+#include <wchar.h>],
       [mbstate_t x; return sizeof x;],
       ac_cv_type_mbstate_t_object=yes,
       ac_cv_type_mbstate_t_object=no)])