diff --git a/lang/gforth/files/patch-fflib.fs b/lang/gforth/files/patch-fflib.fs
new file mode 100644
index 000000000000..9dc464a1e4e5
--- /dev/null
+++ b/lang/gforth/files/patch-fflib.fs
@@ -0,0 +1,11 @@
+--- fflib.fs.orig	2013-10-11 21:31:28 UTC
++++ fflib.fs
+@@ -37,7 +37,7 @@ s" callback" add-lib
+ \c typedef void *Label;
+ \c typedef Label *Xt;
+ \c 
+-\c void gforth_callback_ffcall(Xt* fcall, void * alist)
++\c void gforth_callback_ffcall(void* fcall, va_alist alist)
+ \c {
+ \c #ifndef HAS_BACKLINK
+ \c   void **gforth_pointers = saved_gforth_pointers;