diff --git a/CM_linux_packages.cmake b/CM_linux_packages.cmake
index a073edfa..f047f048 100644
--- a/CM_linux_packages.cmake
+++ b/CM_linux_packages.cmake
@@ -1,9 +1,8 @@
 # determine the version number from the #define in libyuv/version.h
-EXECUTE_PROCESS (
-	COMMAND grep --perl-regex --only-matching "(?<=LIBYUV_VERSION )[0-9]+" include/libyuv/version.h
-	WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
-	OUTPUT_VARIABLE YUV_VERSION_NUMBER
-	OUTPUT_STRIP_TRAILING_WHITESPACE )
+FILE(STRINGS "${PROJECT_SOURCE_DIR}/include/libyuv/version.h" YUV_VERSION_LINE
+	REGEX "^#define LIBYUV_VERSION [0-9]+$")
+STRING(REGEX REPLACE "^#define LIBYUV_VERSION ([0-9]+)$" "\\1"
+	YUV_VERSION_NUMBER "${YUV_VERSION_LINE}")
 SET ( YUV_VER_MAJOR 0 )
 SET ( YUV_VER_MINOR 0 )
 SET ( YUV_VER_PATCH ${YUV_VERSION_NUMBER} )
@@ -66,4 +65,3 @@ SET ( CPACK_GENERATOR						"DEB;RPM" )
 
 # create the .deb and .rpm files (you'll need build-essential and rpm tools)
 INCLUDE( CPack )
-
diff --git a/source/test.sh b/source/test.sh
index 7f12c3c1..95fcce3f 100755
--- a/source/test.sh
+++ b/source/test.sh
@@ -1,7 +1,7 @@
-#!/bin/bash
+#!/bin/sh
 set -x
 
-function runbenchmark1 {
+runbenchmark1() {
   perf record /google/src/cloud/fbarchard/clean/google3/blaze-bin/third_party/libyuv/libyuv_test --gunit_filter=*$1 --libyuv_width=1280 --libyuv_height=720 --libyuv_repeat=1000 --libyuv_flags=-1 --libyuv_cpu_info=-1
   perf report | grep AVX
 }