diff --git a/.gitignore b/.gitignore
index 9901bc2cb..806a1ac89 100644
--- a/.gitignore
+++ b/.gitignore
@@ -56,7 +56,7 @@ $RECYCLE.BIN/
 *.blend
 *.blend1
 # Linux_build
-/build/
+/mk/linux/build/
 /google-breakpad
 /mk/linux/megaglest.6
 # Windows_build
diff --git a/mk/linux/build-mg.sh b/mk/linux/build-mg.sh
index 8c1bc6f2e..726fe7346 100755
--- a/mk/linux/build-mg.sh
+++ b/mk/linux/build-mg.sh
@@ -173,7 +173,7 @@ if [ $CLANG_FORCED = 1 ]; then
 #exit 1;
 # If both the $CC and $CXX environment variable point to something containing
 # "clang", use whatever these environment variables point to.
-elif [ "`echo $CC | grep -Fq 'clang'`" = 'clang' -a "`echo $CXX | grep -Fq 'clang'`" = 'clang' ]; then
+elif [ "`echo $CC | grep -oF 'clang'`" = 'clang' -a "`echo $CXX | grep -oF 'clang'`" = 'clang' ]; then
 	if [ `echo $CC | grep -Fq '/'` = '/' ]; then
 		CLANG_CC=$CC
 	else