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| author | Stefano Brivio <sbrivio@redhat.com> | 2022-09-14 15:34:28 +0200 |
|---|---|---|
| committer | Stefano Brivio <sbrivio@redhat.com> | 2022-09-22 16:53:09 +0200 |
| commit | 512f5b1aab2a09faf8d63894ebadc8a2a96c6925 (patch) | |
| tree | c9649ab490f02c3278de026df535398d3be1d012 /test/perf | |
| parent | b323e5f43999a5ab38196502bb97bcd695538906 (diff) | |
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Makefile: Allow define overrides by prepending, not appending, CFLAGS
If we append CFLAGS to the ones passed via command line (if any),
-D options we append will override -D options passed on command line
(if any).
For example, OpenSUSE build flags include -D_FORTIFY_SOURCE=3, and we
want to have -D_FORTIFY_SOURCE=2, if and only if not overridden. The
current behaviour implies we redefine _FORTIFY_SOURCE as 2, though.
Instead of appending CFLAGS, prepend them by adding all the default
build flags to another variable, a simply expanded one (defined with
:=), named FLAGS, and pass that *before* CFLAGS in targets, so that
defines from command line can override default flags.
Reported-by: Dario Faggioli <dfaggioli@suse.com>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Tested-by: Dario Faggioli <dfaggioli@suse.com>
Diffstat (limited to 'test/perf')
0 files changed, 0 insertions, 0 deletions