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authorSam Ravnborg <sam@neptun.(none)>2007-10-19 21:46:01 +0200
committerSam Ravnborg <sam@neptun.(none)>2007-10-19 21:46:01 +0200
commit910b40468a9ce3f2f5d48c5d260329c27d45adb5 (patch)
tree7c6957b94da9c9358839cde3f1ed6c827aac63a7 /scripts/Kbuild.include
parent50a8ec31c3a00594ceb7c5f1dcf2ecdaf6a5b847 (diff)
downloadlinux-linaro-910b40468a9ce3f2f5d48c5d260329c27d45adb5.tar.gz
kbuild: introduce cc-cross-prefix
cc-cross-prefix is useful for the architecture that like to provide a default CROSS_COMPILE value, but may have several to select between. Sample usage: ifneq ($(SUBARCH),$(ARCH)) ifeq ($(CROSS_COMPILE),) CROSS_COMPILE := $(call cc-cross-prefix, m68k-linux-gnu- m68k-linux-) endif endif Actual usage by the different archs will taken care of later. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Diffstat (limited to 'scripts/Kbuild.include')
-rw-r--r--scripts/Kbuild.include11
1 files changed, 11 insertions, 0 deletions
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index de7bb284c61..b96ea8d6a5e 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -56,6 +56,17 @@ endef
# gcc support functions
# See documentation in Documentation/kbuild/makefiles.txt
+# cc-cross-prefix
+# Usage: CROSS_COMPILE := $(call cc-cross-prefix, m68k-linux-gnu- m68k-linux-)
+# Return first prefix where a prefix$(CC) is found in PATH.
+# If no $(CC) found in PATH with listed prefixes return nothing
+cc-cross-prefix = \
+ $(word 1, $(foreach c,$(1), \
+ $(shell set -e; \
+ if (which $(strip $(c))$(CC)) > /dev/null 2>&1 ; then \
+ echo $(c); \
+ fi)))
+
# output directory for tests below
TMPOUT := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/)