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kbuild: move extra gcc checks to scripts/Makefile.extrawarn

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W=... provides extra gcc checks.

Having such code in scripts/Makefile.build results in the same flags
being added to KBUILD_CFLAGS multiple times becuase
scripts/Makefile.build is invoked every time Kbuild descends into
the subdirectories.

Since the top Makefile is already too cluttered, this commit moves
all of extra gcc check stuff to a new file scripts/Makefile.extrawarn,
which is included from the top Makefile.

Signed-off-by: Masahiro Yamada <[email protected]>
CC: Sam Ravnborg <[email protected]>
Signed-off-by: Michal Marek <[email protected]>
This commit is contained in:
Masahiro Yamada 2014-04-14 18:27:10 +09:00 • committed by Michal Marek
commit a86fe35373
3 changed files with 69 additions and 65 deletions
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6
Makefile
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@ -105,10 +105,6 @@ ifeq ("$(origin O)", "command line")
KBUILD_OUTPUT := $(O)
endif
ifeq ("$(origin W)", "command line")
export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W)
endif
# That's our default target when none is given on the command line
PHONY := _all
_all:
@ -731,6 +727,8 @@ ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y)
KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO
endif
include $(srctree)/scripts/Makefile.extrawarn
# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
KBUILD_CPPFLAGS += $(KCPPFLAGS)
KBUILD_AFLAGS += $(KAFLAGS)