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authorSean Paul <seanpaul@chromium.org>2017-09-21 14:18:46 -0700
committerSean Paul <seanpaul@chromium.org>2017-09-21 14:18:46 -0700
commit1ebfc603d046f1dda6507d11803f9b4046cee712 (patch)
tree3be6790f2ce819929b1ccff7993c636e0944705a /tools/scripts/Makefile.include
parentqxl: fix primary surface handling (diff)
parentMerge tag 'kbuild-fixes-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/g... (diff)
downloadlinux-1ebfc603d046f1dda6507d11803f9b4046cee712.tar.gz
linux-1ebfc603d046f1dda6507d11803f9b4046cee712.zip
Merge remote-tracking branch 'origin/master' into drm-misc-fixes
Pick up 4.14-rc1 Signed-off-by: Sean Paul <seanpaul@chromium.org>
Diffstat (limited to 'tools/scripts/Makefile.include')
-rw-r--r--tools/scripts/Makefile.include10
1 files changed, 6 insertions, 4 deletions
diff --git a/tools/scripts/Makefile.include b/tools/scripts/Makefile.include
index ccad8ce925e4..9dc8f078a83c 100644
--- a/tools/scripts/Makefile.include
+++ b/tools/scripts/Makefile.include
@@ -1,7 +1,7 @@
ifneq ($(O),)
ifeq ($(origin O), command line)
- dummy := $(if $(shell test -d $(O) || echo $(O)),$(error O=$(O) does not exist),)
- ABSOLUTE_O := $(shell cd $(O) ; pwd)
+ ABSOLUTE_O := $(realpath $(O))
+ dummy := $(if $(ABSOLUTE_O),,$(error O=$(O) does not exist))
OUTPUT := $(ABSOLUTE_O)/$(if $(subdir),$(subdir)/)
COMMAND_O := O=$(ABSOLUTE_O)
ifeq ($(objtree),)
@@ -12,7 +12,7 @@ endif
# check that the output directory actually exists
ifneq ($(OUTPUT),)
-OUTDIR := $(shell cd $(OUTPUT) && /bin/pwd)
+OUTDIR := $(realpath $(OUTPUT))
$(if $(OUTDIR),, $(error output directory "$(OUTPUT)" does not exist))
endif
@@ -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