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| author |   Joonsoo Kim <iamjoonsoo.kim@lge.com> | 2013-06-19 10:02:29 +0900 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-07-08 17:36:17 -0300 |
| commit | 079787f209416416383c74ea5d5044be2d586f5e (patch) | |
| tree | 17847ff50d6560fc66136cae8b6dd7dfeb2cc6f7 /tools/lib | |
| parent | perf tools: Include termios.h explicitly (diff) | |
| download | linux-dev-079787f209416416383c74ea5d5044be2d586f5e.tar.xz linux-dev-079787f209416416383c74ea5d5044be2d586f5e.zip | |
tools lib lk: Fix for cross build
Currently, lib lk doesn't use CROSS_COMPILE environment variable, so
cross build always fails.
This is a quick fix for this problem.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1371603750-15053-2-git-send-email-iamjoonsoo.kim@lge.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/lib')
| -rw-r--r-- | tools/lib/lk/Makefile | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/tools/lib/lk/Makefile b/tools/lib/lk/Makefile index 2c5a19733357..f0ecc0a13300 100644 --- a/tools/lib/lk/Makefile +++ b/tools/lib/lk/Makefile @@ -3,6 +3,21 @@ include ../../scripts/Makefile.include CC = $(CROSS_COMPILE)gcc AR = $(CROSS_COMPILE)ar +# Makefiles suck: This macro sets a default value of $(2) for the +# variable named by $(1), unless the variable has been set by +# environment or command line. This is necessary for CC and AR +# because make sets default values, so the simpler ?= approach +# won't work as expected. +define allow-override + $(if $(or $(findstring environment,$(origin $(1))),\ + $(findstring command line,$(origin $(1)))),,\ + $(eval $(1) = $(2))) +endef + +# Allow setting CC and AR, or setting CROSS_COMPILE as a prefix. +$(call allow-override,CC,$(CROSS_COMPILE)gcc) +$(call allow-override,AR,$(CROSS_COMPILE)ar) + # guard against environment variables LIB_H= LIB_OBJS= |