The ChromeOS build system provides a set of CXXFLAGS, however those do not contain -DCOMPACT. This breaks the compilation of cbfstool in coreboot-utils. This fix overrides CXXFLAGS so that coreboot-utils compiles again. Change-Id: If9495bdd815fe2cdaeba5386afa953558742467b Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/1038 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>