Source
--- src/export.cpp.orig 2016-06-19 10:01:24.000000000 -0700
+++ src/export.cpp 2016-12-17 13:57:05.000000000 -0700
#if MGL_HAVE_GIF
#include <gif_lib.h>
+#undef TRUE
+#undef FALSE
#endif
//-----------------------------------------------------------------------------
int MGL_NO_EXPORT mgl_pnga_save(const char *fname, int w, int h, unsigned char **p)