diff --git a/devel/llvm/Makefile b/devel/llvm/Makefile
index 1a75b719f90..eb33c731c72 100644
--- a/devel/llvm/Makefile
+++ b/devel/llvm/Makefile
@@ -1,11 +1,11 @@
-# $OpenBSD: Makefile,v 1.40 2012/04/23 23:11:01 sthen Exp $
+# $OpenBSD: Makefile,v 1.41 2012/05/05 19:24:01 dcoppa Exp $
 
 SHARED_LIBS +=  libclang                  0.0 # 3.0
 
 COMMENT =	modular, fast C/C++/ObjC compiler, static analyzer and tools
 
 LLVM_V =	3.0
-REVISION =	1
+REVISION =	2
 DISTNAME =	llvm-${LLVM_V}
 
 CATEGORIES =	devel
diff --git a/devel/llvm/patches/patch-cmake_config-ix_cmake b/devel/llvm/patches/patch-cmake_config-ix_cmake
new file mode 100644
index 00000000000..80634675d3a
--- /dev/null
+++ b/devel/llvm/patches/patch-cmake_config-ix_cmake
@@ -0,0 +1,24 @@
+$OpenBSD: patch-cmake_config-ix_cmake,v 1.1 2012/05/05 19:24:01 dcoppa Exp $
+
+Fix CMake check for pthread_mutex_lock
+
+--- cmake/config-ix.cmake.orig	Fri May  4 14:05:40 2012
++++ cmake/config-ix.cmake	Fri May  4 14:07:10 2012
+@@ -87,6 +87,7 @@ if( NOT PURE_WINDOWS )
+   check_library_exists(pthread pthread_create "" HAVE_LIBPTHREAD)
+   check_library_exists(pthread pthread_getspecific "" HAVE_PTHREAD_GETSPECIFIC)
+   check_library_exists(pthread pthread_rwlock_init "" HAVE_PTHREAD_RWLOCK_INIT)
++  check_library_exists(pthread pthread_mutex_lock "" HAVE_PTHREAD_MUTEX_LOCK)
+   check_library_exists(dl dlopen "" HAVE_LIBDL)
+ endif()
+ 
+@@ -131,9 +132,6 @@ check_symbol_exists(strchr string.h HAVE_STRCHR)
+ check_symbol_exists(strcmp string.h HAVE_STRCMP)
+ check_symbol_exists(strdup string.h HAVE_STRDUP)
+ check_symbol_exists(strrchr string.h HAVE_STRRCHR)
+-if( NOT PURE_WINDOWS )
+-  check_symbol_exists(pthread_mutex_lock pthread.h HAVE_PTHREAD_MUTEX_LOCK)
+-endif()
+ check_symbol_exists(sbrk unistd.h HAVE_SBRK)
+ check_symbol_exists(srand48 stdlib.h HAVE_RAND48_SRAND48)
+ if( HAVE_RAND48_SRAND48 )