Override CPPFLAGS to fix the following build failure with BR2_OPTIMIZE_0
raised since bump to version 0.14.0 in commit
cd707a9112 and
0e7b2b0300:
/home/autobuild/autobuild/instance-15/output-1/host/i686-buildroot-linux-gnu/sysroot/usr/include/features.h:412:4: error: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Werror=cpp]
configure adds -D_FORTIFY_SOURCE to CPPFLAGS if it is not already
defined. However, we don't want _FORTIFY_SOURCE to be enabled unless
it's enabled by Buildroot (for exactly the above reason). Therefore,
override CPPFLAGS in th build step to remove _FORTIFY_SOURCE again.
It should be noted that upstream already rejected a PR to remove
-Werror: https://github.com/smuellerDD/libkcapi/pull/132
Fixes:
- http://autobuild.buildroot.org/results/35141ea3046f5a4593e0b27ef92e4ace6bc0be66
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
83aeec71fd