File stack-direction.patch of Package librep

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File stack-direction.patch of Package librep (Revision d4aa9839867f10176a1342dd0fc506c1)

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From 41962edbf0327de697440f62607e2d67389d9581 Mon Sep 17 00:00:00 2001
From: Andreas Schwab <schwab@linux-m68k.org>
Date: Tue, 21 Apr 2015 15:32:28 +0200
Subject: [PATCH] Make detection of stack direction more robust

---
 configure.in | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

Index: librep_0.92.5/configure
===================================================================
--- librep_0.92.5.orig/configure
+++ librep_0.92.5/configure
@@ -14607,7 +14607,10 @@ See \`config.log' for more details" "$LI
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
- void inner (char *foo) { char bar; exit (!(foo >= &bar)); }
+ int level = 1;
+	       void inner (char *foo) { char bar;
+		 if (level) { --level; inner (foo); }
+		 exit (!(foo >= &bar)); }
 	       void main () { char foo; inner (&foo); }
 _ACEOF
 if ac_fn_c_try_run "$LINENO"; then :
Index: librep_0.92.5/configure.in
===================================================================
--- librep_0.92.5.orig/configure.in
+++ librep_0.92.5/configure.in
@@ -544,7 +544,10 @@ if test "${with_stack_direction}" = unkn
   esac
 fi
 if test "${with_stack_direction}" = unknown; then
-  AC_TRY_RUN([ void inner (char *foo) { char bar; exit (!(foo >= &bar)); }
+  AC_TRY_RUN([ int level = 1;
+	       void inner (char *foo) { char bar;
+		 if (level) { --level; inner (foo); }
+		 exit (!(foo >= &bar)); }
 	       void main () { char foo; inner (&foo); } ],
    [AC_MSG_RESULT([downwards])
     with_stack_direction=-1],

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File stack-direction.patch of Package librep (Revision d4aa9839867f10176a1342dd0fc506c1)

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