[FFmpeg-cvslog] r21749 - trunk/configure

[mru]

Author: mru
Date: Wed Feb 10 23:14:28 2010
New Revision: 21749

Log:
Stricter check for math.h functions

GCC is sometimes able to optimise constant calls to these functions,
incorrectly indicating that they exist.  Unoptimised calls will then
fail to link.

Modified:
   trunk/configure

Modified: trunk/configure
==============================================================================
--- trunk/configure	Wed Feb 10 23:14:25 2010	(r21748)
+++ trunk/configure	Wed Feb 10 23:14:28 2010	(r21749)
@@ -675,7 +675,8 @@ check_mathfunc(){
     disable $func
     check_ld "$@" <<EOF && enable $func
 #include <math.h>
-int main(void){ $func(0); return 0; }
+float foo(float f) { return $func(f); }
+int main(void){ return 0; }
 EOF
 }