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authorSam Ravnborg <sam@neptun.(none)>2007-10-15 22:17:25 +0200
committerSam Ravnborg <sam@neptun.(none)>2007-10-15 22:17:25 +0200
commit06c5040cdb13d27adad118f2fbfae905a1911b37 (patch)
treee5e62e04ca2d6f834aed9925a13869f730656139 /Documentation/kbuild
parent52bcc3308ae3344266f55bf98a22c1ac0201eda7 (diff)
downloadop-kernel-dev-06c5040cdb13d27adad118f2fbfae905a1911b37.zip
op-kernel-dev-06c5040cdb13d27adad118f2fbfae905a1911b37.tar.gz
kbuild: enable 'make CPPFLAGS=...' to add additional options to CPP
The variable CPPFLAGS is a wellknown variable and the usage by kbuild may result in unexpected behaviour. This patch replace use of CPPFLAGS with KBUILD_CPPFLAGS all over the tree and enabling one to use: make CPPFLAGS=... to specify additional CPP commandline options. Patch was tested on following architectures: alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k, s390 Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Diffstat (limited to 'Documentation/kbuild')
-rw-r--r--Documentation/kbuild/makefiles.txt2
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
index f4779cd..08fbe6c 100644
--- a/Documentation/kbuild/makefiles.txt
+++ b/Documentation/kbuild/makefiles.txt
@@ -1099,7 +1099,7 @@ When kbuild executes, the following steps are followed (roughly):
specified options when building the target vmlinux.lds.
When building the *.lds target, kbuild uses the variables:
- CPPFLAGS : Set in top-level Makefile
+ KBUILD_CPPFLAGS : Set in top-level Makefile
EXTRA_CPPFLAGS : May be set in the kbuild makefile
CPPFLAGS_$(@F) : Target specific flags.
Note that the full filename is used in this
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