2.5-agg_main.patch

agg_main() is to be defined instead of main() in the .exe to avoid an 
#include <SDL.h> on Windows.

This hack does not work with shared libraries, however.  We add
'-Dagg_main=main' to CPPFLAGS to make this build properly.

--- origsrc/agg-2.5/src/platform/X11/agg_platform_support.cpp	2007-07-07 19:35:40.000000000 -0500
+++ src/agg-2.5/src/platform/X11/agg_platform_support.cpp	2008-05-11 15:24:25.734375000 -0500
@@ -1288,6 +1288,7 @@
 }
 
 
+#ifndef __CYGWIN__
 int agg_main(int argc, char* argv[]);
 
 
@@ -1295,6 +1296,7 @@
 {
     return agg_main(argc, argv);
 }
+#endif
 
 
 
--- origsrc/agg-2.5/src/platform/sdl/agg_platform_support.cpp	2006-10-08 23:07:25.000000000 -0500
+++ src/agg-2.5/src/platform/sdl/agg_platform_support.cpp	2008-05-11 15:24:33.234375000 -0500
@@ -705,10 +705,12 @@
 }
 
 
+#ifndef __CYGWIN__
 int agg_main(int argc, char* argv[]);
 
 int main(int argc, char* argv[])
 {
     return agg_main(argc, argv);
 }
+#endif