--- src/export.cpp.orig	2016-06-19 10:01:24.000000000 -0700
+++ src/export.cpp	2016-12-17 13:57:05.000000000 -0700
@@ -41,6 +41,8 @@
 
 #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)