[SCM] libav/experimental: Use normal check_func test for math functions

[siretart at users.alioth.debian.org]

The following commit has been merged in the experimental branch:
commit ad420e25e221072710242ff50eab1ad0374f2507
Author: Måns Rullgård <mans at mansr.com>
Date:   Wed Jul 15 08:22:06 2009 +0000

    Use normal check_func test for math functions
    
    Originally committed as revision 19434 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/configure b/configure
index a700220..45ccfd9 100755
--- a/configure
+++ b/configure
@@ -2127,13 +2127,13 @@ done
 check_lib math.h sin -lm
 check_lib va/va.h vaInitialize -lva
 
-# test for C99 functions in math.h
-for func in llrint log2 lrint lrintf round roundf truncf; do
-    check_exec <<EOF && enable $func || disable $func
-#include <math.h>
-int main(void) { return ($func(3.999f) > 0)?0:1; }
-EOF
-done
+check_func llrint
+check_func log2
+check_func lrint
+check_func lrintf
+check_func round
+check_func roundf
+check_func truncf
 
 # these are off by default, so fail if requested and not available
 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lvfw32

-- 
Libav/FFmpeg packaging