selftest/mount: enable cross compilation

Use the CC variable instead of hard coding gcc. Also clean up the compiler
options by creating a CFLAGS variable.

Signed-off-by: Tyler Baker <tyler.baker@linaro.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/tools/testing/selftests/mount/Makefile b/tools/testing/selftests/mount/Makefile
index a5b367f032ba..95580a97326e 100644
--- a/tools/testing/selftests/mount/Makefile
+++ b/tools/testing/selftests/mount/Makefile
@@ -1,9 +1,10 @@
 # Makefile for mount selftests.
-
+CFLAGS = -Wall \
+         -O2
 all: unprivileged-remount-test
 
 unprivileged-remount-test: unprivileged-remount-test.c
-        gcc -Wall -O2 unprivileged-remount-test.c -o unprivileged-remount-test
+        $(CC) $(CFLAGS) unprivileged-remount-test.c -o unprivileged-remount-test
 
 include ../lib.mk