Work around build problems on some systems running HEAD.

PR:		ports/178910
Obtained from:	pkgsrc

devel/llvm/Makefile

@@ -7,7 +7,7 @@
 
 PORTNAME=	llvm
 PORTVERSION=	3.2
-PORTREVISION=	2
+PORTREVISION=	3
 CATEGORIES=	devel lang
 MASTER_SITES=	http://llvm.org/releases/${PORTVERSION}/
 DISTNAME=	${PORTNAME}-${PORTVERSION}.src

devel/llvm/files/patch-lib_Target_X86_X86JITInfo.cpp

@@ -0,0 +1,26 @@
+$NetBSD: patch-lib_Target_X86_X86JITInfo.cpp,v 1.1 2013/04/02 12:00:05 joerg Exp $
+$FreeBSD$
+
+It is not yet decided whether extern "C" applies to static functions, so
+be explicit for now.
+
+--- lib/Target/X86/X86JITInfo.cpp.orig	2013-04-01 12:16:22.000000000 +0000
++++ lib/Target/X86/X86JITInfo.cpp
+@@ -342,6 +342,17 @@ extern "C" {
+ /// must locate the start of the stub or call site and pass it into the JIT
+ /// compiler function.
+ extern "C" {
++
++#if !(defined (X86_64_JIT) && defined(_MSC_VER))
++ // the following function is called only from this translation unit,
++ // unless we are under 64bit Windows with MSC, where there is
++ // no support for inline assembly
++static
++#endif
++void LLVM_ATTRIBUTE_USED
++X86CompilationCallback2(intptr_t *StackPtr, intptr_t RetAddr)
++__asm__("X86CompilationCallback2");
++
+ #if !(defined (X86_64_JIT) && defined(_MSC_VER))
+  // the following function is called only from this translation unit,
+  // unless we are under 64bit Windows with MSC, where there is