From b0cfb663c3cdde6c343c345cbc89f818bf1174a8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?M=C3=A5ns=20Rullg=C3=A5rd?= <mans@mansr.com>
Date: Mon, 31 Jul 2006 07:54:48 +0000
Subject: [PATCH] can't trust the compiler exit status, check for messages
 instead

Originally committed as revision 5869 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 configure | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index c6ec733f43..d3bae10a42 100755
--- a/configure
+++ b/configure
@@ -213,12 +213,16 @@ add_extralibs(){
     append extralibs "$@"
 }
 
+check_cmd(){
+    "$@" 2>&1 | tee -a $logfile | { ! grep -q .; }
+}
+
 check_cc(){
     log check_cc "$@"
     cat >$TMPC
     log_file $TMPC
     log $cc $CFLAGS "$@" -c -o $TMPO $TMPC
-    $cc $CFLAGS "$@" -c -o $TMPO $TMPC >>$logfile 2>&1
+    check_cmd $cc $CFLAGS "$@" -c -o $TMPO $TMPC
 }
 
 check_cpp(){
@@ -226,14 +230,14 @@ check_cpp(){
     cat >$TMPC
     log_file $TMPC
     log $cc $CFLAGS "$@" -E -o $TMPO $TMPC
-    $cc $CFLAGS "$@" -E -o $TMPO $TMPC >>$logfile 2>&1
+    check_cmd $cc $CFLAGS "$@" -E -o $TMPO $TMPC
 }
 
 check_ld(){
     log check_ld "$@"
     check_cc || return
     log $cc $LDFLAGS "$@" -o $TMPE $TMPO $extralibs
-    $cc $LDFLAGS "$@" -o $TMPE $TMPO $extralibs >>$logfile 2>&1
+    check_cmd $cc $LDFLAGS "$@" -o $TMPE $TMPO $extralibs
 }
 
 check_cflags(){