diff --git a/devel/valgrind-devel/files/patch-configure.ac b/devel/valgrind-devel/files/patch-configure.ac
index 295a0bed96c4..2d8a1a93a005 100644
--- a/devel/valgrind-devel/files/patch-configure.ac
+++ b/devel/valgrind-devel/files/patch-configure.ac
@@ -1,9 +1,10 @@
 --- configure.ac.orig	2016-01-13 19:20:20 UTC
 +++ configure.ac
-@@ -145,6 +145,18 @@ case "${is_clang}-${gcc_version}" in
+@@ -145,7 +145,19 @@
       notclang-5.*)
  	AC_MSG_RESULT([ok (${gcc_version})])
  	;;
+-     clang-2.9|clang-3.*|clang-4.*)
 +     notclang-6.*)
 +	AC_MSG_RESULT([ok (${gcc_version})])
 +	;;
@@ -16,6 +17,7 @@
 +     notclang-9.*)
 +	AC_MSG_RESULT([ok (${gcc_version})])
 +	;;
-      clang-2.9|clang-3.*|clang-4.*)
++     clang-2.9|clang-3.*|clang-4.*|clang-5.*)
  	AC_MSG_RESULT([ok (clang-${gcc_version})])
  	;;
+      *)
diff --git a/devel/valgrind/files/patch-configure.ac b/devel/valgrind/files/patch-configure.ac
index 295a0bed96c4..2d8a1a93a005 100644
--- a/devel/valgrind/files/patch-configure.ac
+++ b/devel/valgrind/files/patch-configure.ac
@@ -1,9 +1,10 @@
 --- configure.ac.orig	2016-01-13 19:20:20 UTC
 +++ configure.ac
-@@ -145,6 +145,18 @@ case "${is_clang}-${gcc_version}" in
+@@ -145,7 +145,19 @@
       notclang-5.*)
  	AC_MSG_RESULT([ok (${gcc_version})])
  	;;
+-     clang-2.9|clang-3.*|clang-4.*)
 +     notclang-6.*)
 +	AC_MSG_RESULT([ok (${gcc_version})])
 +	;;
@@ -16,6 +17,7 @@
 +     notclang-9.*)
 +	AC_MSG_RESULT([ok (${gcc_version})])
 +	;;
-      clang-2.9|clang-3.*|clang-4.*)
++     clang-2.9|clang-3.*|clang-4.*|clang-5.*)
  	AC_MSG_RESULT([ok (clang-${gcc_version})])
  	;;
+      *)