diff -ur libgd-2.1.1.orig/src/gd.h libgd-2.1.1/src/gd.h
--- libgd-2.1.1.orig/src/gd.h	2015-01-14 02:15:47.000000000 +0100
+++ libgd-2.1.1/src/gd.h	2015-01-14 10:49:15.922009653 +0100
@@ -62,7 +62,7 @@
 #   define BGD_EXPORT_DATA_PROT __declspec(dllimport)
 #  endif
 # endif
-# define BGD_STDCALL __stdcall
+# define BGD_STDCALL
 # define BGD_EXPORT_DATA_IMPL
 #else
 # ifdef HAVE_VISIBILITY
