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authorSam Ravnborg <sam@mars.ravnborg.org>2006-04-07 08:36:49 +0200
committerSam Ravnborg <sam@mars.ravnborg.org>2006-04-07 08:36:49 +0200
commitd9df92e22aca939857c5bc9ecb130ef22307ccc1 (patch)
treede428ec711fe241f3ad7ac1272ba8591d68d9fc2 /scripts/Kbuild.include
parent7d2d8fe0cb88914d26219db51341d780a032b198 (diff)
kbuild: properly pass options to hostcc when doing make O=..
This fix a longstanding bug where proper options was not passed to hostcc in case of a make O=.. build. This bug showed up in (not yet merged) klibc, and is not known to have any counterpart in-kernel. Fixed by moving the flags macro to Kbuild.include so it can be used by both Makefile.lib and Makefile.host. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Diffstat (limited to 'scripts/Kbuild.include')
-rw-r--r--scripts/Kbuild.include5
1 files changed, 5 insertions, 0 deletions
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index 59620b1554e0..b0d067be7390 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -87,6 +87,11 @@ cc-ifversion = $(shell if [ $(call cc-version, $(CC)) $(1) $(2) ]; then \
# $(Q)$(MAKE) $(build)=dir
build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj
+# Prefix -I with $(srctree) if it is not an absolute path
+addtree = $(if $(filter-out -I/%,$(1)),$(patsubst -I%,-I$(srctree)/%,$(1))) $(1)
+# Find all -I options and call addtree
+flags = $(foreach o,$($(1)),$(if $(filter -I%,$(o)),$(call addtree,$(o)),$(o)))
+
# If quiet is set, only print short version of command
cmd = @$(echo-cmd) $(cmd_$(1))

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