[Avifile]gcc3 compile fixes

[Dirk Mueller]

Hi, 

I need math.h in order to be able to compile the file. please commit, 
thanks. 


Dirk

Index: lib/aviplay/SdlAudioRenderer.cpp
===================================================================
RCS file: /cvsroot/avifile/avifile-0.6/lib/aviplay/SdlAudioRenderer.cpp,v
retrieving revision 1.17
diff -u -3 -d -p -r1.17 SdlAudioRenderer.cpp
--- lib/aviplay/SdlAudioRenderer.cpp    2001/05/16 10:15:15     1.17
+++ lib/aviplay/SdlAudioRenderer.cpp    2001/05/19 13:05:11
@@ -3,6 +3,7 @@
 #include <avifile.h>
 #include <cpuinfo.h>
 #include <iostream>
+#include <math.h>
 
 using namespace std;