From 5eb040aa8b9eb303144e66fb0856bf9fc929df61 Mon Sep 17 00:00:00 2001
From: Marius Vollmer <mvo@zagadka.de>
Date: Mon, 9 Jun 2003 22:08:25 +0000
Subject: [PATCH] (HAVE_LIBC_STACK_END): New check, to be used in
 libguile/gc_os_dep.c

---
 configure.in | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/configure.in b/configure.in
index a440bb14f..b0d035e01 100644
--- a/configure.in
+++ b/configure.in
@@ -1,7 +1,7 @@
 dnl   configuration script for Guile
 dnl   Process this file with autoconf to produce configure.
 dnl
-dnl  Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
+dnl  Copyright (C) 1998, 1999, 2000, 2001, 2003 Free Software Foundation, Inc.
 dnl
 dnl  This file is part of GUILE
 dnl
@@ -324,6 +324,18 @@ AC_CHECK_FUNCS(sethostent   gethostent   endhostent   dnl
 	       inet_lnaof inet_makeaddr inet_netof hstrerror dnl
 	       inet_pton inet_ntop)
 
+AC_MSG_CHECKING(for __libc_stack_end)
+AC_TRY_LINK([extern char *__libc_stack_end;],
+            [char *p = __libc_stack_end;],
+            have_libc_stack_end=yes,
+            have_libc_stack_end=no)
+AC_MSG_RESULT($have_libc_stack_end)
+
+if test $have_libc_stack_end = yes; then
+  AC_DEFINE(HAVE_LIBC_STACK_END, 1,
+           [Define if you have the __libc_stack_end variable.])
+fi
+
 dnl Some systems do not declare this.  Some systems do declare it, as a
 dnl macro.  With cygwin it may be in a DLL.