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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-02-14 14:55:27 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-02-14 14:55:27 +0100 |
| commit | 49b3cd306e60b9d889c775cb2ebb709f80dd8ae9 (patch) | |
| tree | 28b1b251c83d45ca0b3c2df7690fb42b53114958 /tools/lib/subcmd | |
| parent | tools: Suppress request for warning options not existent in clang (diff) | |
| download | linux-49b3cd306e60b9d889c775cb2ebb709f80dd8ae9.tar.xz linux-49b3cd306e60b9d889c775cb2ebb709f80dd8ae9.zip | |
tools: Set the maximum optimization level according to the compiler being used
To avoid this when using clang:
warning: optimization level '-O6' is not supported; using '-O3' instead
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-kaghp8ddvzdsg03putemcq96@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/lib/subcmd')
| -rw-r--r-- | tools/lib/subcmd/Makefile | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/tools/lib/subcmd/Makefile b/tools/lib/subcmd/Makefile index 3f8cc44a0dbd..3d1c3b5b5150 100644 --- a/tools/lib/subcmd/Makefile +++ b/tools/lib/subcmd/Makefile @@ -19,7 +19,13 @@ MAKEFLAGS += --no-print-directory LIBFILE = $(OUTPUT)libsubcmd.a CFLAGS := $(EXTRA_WARNINGS) $(EXTRA_CFLAGS) -CFLAGS += -ggdb3 -Wall -Wextra -std=gnu99 -O6 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fPIC +CFLAGS += -ggdb3 -Wall -Wextra -std=gnu99 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fPIC + +ifeq ($(CC), clang) + CFLAGS += -O3 +else + CFLAGS += -O6 +endif # Treat warnings as errors unless directed not to ifneq ($(WERROR),0) |