- fix an implicit declaration

devel/libffi/Makefile

@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile,v 1.18 2013/03/21 15:52:08 jasper Exp $
+# $OpenBSD: Makefile,v 1.19 2013/03/21 16:22:51 jasper Exp $
 
 # m68k - needs ELF and serious tinkering
 # m88k - missing code
@@ -8,7 +8,7 @@ NOT_FOR_ARCHS= 		m68k m88k vax
 COMMENT=		Foreign Function Interface
 
 DISTNAME=		libffi-3.0.9
-REVISION=		0
+REVISION=		1
 SHARED_LIBS +=  ffi                  0.0      # .5.9
 CATEGORIES=		devel
 

devel/libffi/patches/patch-src_arm_ffi_c

@@ -0,0 +1,15 @@
+$OpenBSD: patch-src_arm_ffi_c,v 1.1 2013/03/21 16:22:51 jasper Exp $
+
+warning: implicit declaration of function '__clear_cache'
+
+--- src/arm/ffi.c.orig	Thu Mar 21 17:15:53 2013
++++ src/arm/ffi.c	Thu Mar 21 17:16:12 2013
+@@ -37,6 +37,8 @@
+ static int vfp_type_p (ffi_type *);
+ static void layout_vfp_args (ffi_cif *);
+ 
++extern void __clear_cache(char *beg, char *end);
++
+ /* ffi_prep_args is called by the assembly routine once stack space
+    has been allocated for the function's arguments
+