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authorDavid Carrillo-Cisneros <davidcc@google.com>2017-08-27 10:54:40 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2017-08-28 22:44:46 +0300
commit3866058ef15b6ae6f4ff48e088428b46bcc43fa1 (patch)
tree821ab268db308660fd5aaf91b47103e8316df132 /tools/scripts
parent12024aacb0170779cd0b976b06d2e9b1767cf142 (diff)
downloadlinux-3866058ef15b6ae6f4ff48e088428b46bcc43fa1.tar.xz
perf tools: Robustify detection of clang binary
Prior to this patch, make scripts tested for CLANG with ifeq ($(CC), clang), failing to detect CLANG binaries with different names. Fix it by testing for the existence of __clang__ macro in the list of compiler defined macros. Signed-off-by: David Carrillo-Cisneros <davidcc@google.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Paul Turner <pjt@google.com> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/20170827075442.108534-5-davidcc@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/scripts')
-rw-r--r--tools/scripts/Makefile.include4
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/scripts/Makefile.include b/tools/scripts/Makefile.include
index ccad8ce925e4..1e8b6116ba3c 100644
--- a/tools/scripts/Makefile.include
+++ b/tools/scripts/Makefile.include
@@ -39,7 +39,9 @@ EXTRA_WARNINGS += -Wundef
EXTRA_WARNINGS += -Wwrite-strings
EXTRA_WARNINGS += -Wformat
-ifneq ($(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