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| author | David Carrillo-Cisneros <davidcc@google.com> | 2017-08-27 00:54:40 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-08-28 16:44:46 -0300 |
| commit | 3866058ef15b6ae6f4ff48e088428b46bcc43fa1 (patch) | |
| tree | 821ab268db308660fd5aaf91b47103e8316df132 /tools/scripts | |
| parent | 12024aacb0170779cd0b976b06d2e9b1767cf142 (diff) | |
| download | lwn-3866058ef15b6ae6f4ff48e088428b46bcc43fa1.tar.gz lwn-3866058ef15b6ae6f4ff48e088428b46bcc43fa1.zip | |
perf tools: Robustify detection of clang binary
Prior to this patch, make scripts tested for CLANG with ifeq ($(CC),
clang), failing to detect CLANG binaries with different names. Fix it by
testing for the existence of __clang__ macro in the list of compiler
defined macros.
Signed-off-by: David Carrillo-Cisneros <davidcc@google.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Paul Turner <pjt@google.com>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/20170827075442.108534-5-davidcc@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/scripts')
| -rw-r--r-- | tools/scripts/Makefile.include | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/scripts/Makefile.include b/tools/scripts/Makefile.include index ccad8ce925e4..1e8b6116ba3c 100644 --- a/tools/scripts/Makefile.include +++ b/tools/scripts/Makefile.include @@ -39,7 +39,9 @@ EXTRA_WARNINGS += -Wundef EXTRA_WARNINGS += -Wwrite-strings EXTRA_WARNINGS += -Wformat -ifneq ($(CC), clang) +CC_NO_CLANG := $(shell $(CC) -dM -E -x c /dev/null | grep -Fq "__clang__"; echo $$?) + +ifeq ($(CC_NO_CLANG), 1) EXTRA_WARNINGS += -Wstrict-aliasing=3 endif |