Build C part as c99.

Change-Id: I2a74e0c170ce97147154413b8b8161871375e3e0
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>
Reviewed-on: https://git.eclipse.org/r/c/linuxtools/org.eclipse.linuxtools.eclipse-build/+/175434
1 file changed