From 874f12ea700cc5f7dd256856a78701c8b19e415d Mon Sep 17 00:00:00 2001
From: Werner Koch <wk@gnupg.org>
Date: Wed, 6 Dec 2000 12:17:10 +0000
Subject: Okay, it runs at least on Windows 95

---
 acinclude.m4 | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'acinclude.m4')

diff --git a/acinclude.m4 b/acinclude.m4
index 4b870edb..0952b2fb 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -21,6 +21,23 @@ AC_DEFUN(GNUPG_FIX_HDR_VERSION,
     fi
   ])
 
+dnl GNUPG_CHECK_TYPEDEF(TYPE, HAVE_NAME)
+dnl Check whether a typedef exists and create a #define $2 if it exists
+dnl
+AC_DEFUN(GNUPG_CHECK_TYPEDEF,
+  [ AC_MSG_CHECKING(for $1 typedef)
+    AC_CACHE_VAL(gnupg_cv_typedef_$1,
+    [AC_TRY_COMPILE([#include <stdlib.h>
+    #include <sys/types.h>], [
+    #undef $1
+    int a = sizeof($1);
+    ], gnupg_cv_typedef_$1=yes, gnupg_cv_typedef_$1=no )])
+    AC_MSG_RESULT($gnupg_cv_typedef_$1)
+    if test "$gnupg_cv_typedef_$1" = yes; then
+        AC_DEFINE($2)
+    fi
+  ])
+
 
 
 
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