From e3d2a7d57bc57453d66aa63ca7fe4d910b64737c Mon Sep 17 00:00:00 2001
From: Adam Jackson <ajax@nwnk.net>
Date: Mon, 3 Oct 2005 06:29:14 +0000
Subject: [PATCH] Bug #4393: uClibc lies and defines __GLIBC__ even though it's
 not source     compatible with glibc, so the backtrace support check fails.
 Work     around this by wrapping the code in a configure check for
 execinfo.h,     and emulate detection for the monolith. (Yuri Vasilevski)

---
 hw/xfree86/common/xf86Events.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/hw/xfree86/common/xf86Events.c b/hw/xfree86/common/xf86Events.c
index d9157b163..048ee4561 100644
--- a/hw/xfree86/common/xf86Events.c
+++ b/hw/xfree86/common/xf86Events.c
@@ -1277,14 +1277,12 @@ xf86InterceptSigIll(void (*sigillhandler)(void))
     xf86SigIllHandler = sigillhandler;
 }
 
-#if defined(__GLIBC__)
-# if __GLIBC_PREREQ(2, 1)
-#  define HAVE_BACKTRACE
-# endif
+#ifdef HAVE_EXECINFO_H
+#define HAVE_BACKTRACE
+#include <execinfo.h>
 #endif
 
 #ifdef HAVE_BACKTRACE
-#include <execinfo.h>
 
 static __inline__ void xorg_backtrace(void)
 {