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kbuild: add user-supplied CPPFLAGS, AFLAGS and CFLAGS

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Like Linux Kernel, this commit provides environment variables
KCPPFLAGS, KAFLAGS and KCFLAGS, which are useful to pass
additional options.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
This commit is contained in:
Masahiro Yamada 2014-04-15 14:47:40 +09:00 committed by Tom Rini
parent 71ba24581c
commit 0e6256d077
1 changed files with 5 additions and 0 deletions
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5
Makefile
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@ -584,6 +584,11 @@ endif
export CONFIG_SYS_TEXT_BASE
# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
KBUILD_CPPFLAGS += $(KCPPFLAGS)
KBUILD_AFLAGS += $(KAFLAGS)
KBUILD_CFLAGS += $(KCFLAGS)
# Use UBOOTINCLUDE when you must reference the include/ directory.
# Needed to be compatible with the O= option
UBOOTINCLUDE := \