--- devel/valgrind/Makefile	2012-06-15 11:30:06.000000000 -0400
+++ devel/valgrind/Makefile	2012-06-15 11:28:33.000000000 -0400
@@ -22,6 +22,8 @@
 OPTIONS_DEFINE=	MPI
 MPI_DESC=	Enable build of MPI wrappers
 
+EXTRA_PATCHES+=	${.CURDIR}/files/configure.diff
+
 USE_BZIP2=	yes
 USE_GMAKE=	yes
 USE_GNOME=	gnomehack pkgconfig
--- /dev/null	                        2012-06-15 11:36:53.000000000 -0400
+++ devel/valgrind/files/configure.diff	2012-06-15 11:34:37.000000000 -0400
@@ -0,0 +1,25 @@
+--- configure	2012-06-15 11:01:25.000000000 -0400
++++ configure	2012-06-15 11:26:12.000000000 -0400
+@@ -5327,7 +5327,10 @@
+              | $SED 's/^[^(]*([^)]*)  *\([0-9.]*\).*$/\1/'`
+ 
+ is_clang="notclang"
+-if test "x`${CC} --version | head -n 1 | $SED 's/\(clang\) version.*/\1/'`" = "xclang" ; then
++if test "x`${CC} --version | head -n 1 | $SED 's/.*\(clang\) version.*/\1/'`" = "xclang" ; then
++   gcc_version=`${CC} --version \
++                | head -n 1 \
++                | $SED 's/^.*version \([0-9.]*\).*$/\1/'`
+    is_clang="clang"
+ fi
+ 
+@@ -5344,6 +5347,10 @@
+ 	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ok (clang-${gcc_version})" >&5
+ $as_echo "ok (clang-${gcc_version})" >&6; }
+ 	;;
++     clang-3.*)
++	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ok (clang-${gcc_version})" >&5
++$as_echo "ok (clang-${gcc_version})" >&6; }
++	;;
+      *)
+ 	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no (${gcc_version})" >&5
+ $as_echo "no (${gcc_version})" >&6; }