COMPMID-556 Fix build issues with Clang

Cleaned up build system a bit

Change-Id: I476deb5e8998653a15d018dc332d43c1d439d4c6
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/111917
Reviewed-by: Pablo Tello <pablo.tello@arm.com>
Tested-by: BSG Visual Compute Jenkins server to access repositories on http://mpd-gerrit.cambridge.arm.com <bsgcomp@arm.com>
2 files changed