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authorArnd Bergmann <arnd@arndb.de>2016-06-15 17:45:47 +0200
committerMichal Marek <mmarek@suse.com>2016-07-18 21:31:35 +0200
commitdb547ef1906400eb34682e43035dd4d81b9fdcfb (patch)
tree9cebb398039e98e20f336ecfaa9d9a0ac2eff432 /scripts/Makefile.lib
parentKbuild: arch: look for generated headers in obtree (diff)
downloadlinux-db547ef1906400eb34682e43035dd4d81b9fdcfb.tar.xz
linux-db547ef1906400eb34682e43035dd4d81b9fdcfb.zip
Kbuild: don't add obj tree in additional includes
When building with separate object directories and driver specific Makefiles that add additional header include paths, Kbuild adjusts the gcc flags so that we include both the directory in the source tree and in the object tree. However, due to another bug I fixed earlier, this did not actually include the correct directory in the object tree, so we know that we only really need the source tree here. Also, including the object tree sometimes causes warnings about nonexisting directories when the include path only exists in the source. This changes the logic to only emit the -I argument for the srctree, not for objects. We still need both $(srctree)/$(src) and $(obj) though, so I'm adding them manually. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Michal Marek <mmarek@suse.com>
Diffstat (limited to 'scripts/Makefile.lib')
-rw-r--r--scripts/Makefile.lib7
1 files changed, 4 insertions, 3 deletions
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index e7df0f5db7ec..e89c214745eb 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -155,9 +155,10 @@ else
# $(call addtree,-I$(obj)) locates .h files in srctree, from generated .c files
# and locates generated .h files
# FIXME: Replace both with specific CFLAGS* statements in the makefiles
-__c_flags = $(call addtree,-I$(obj)) $(call flags,_c_flags)
-__a_flags = $(call flags,_a_flags)
-__cpp_flags = $(call flags,_cpp_flags)
+__c_flags = $(if $(obj),-I$(srctree)/$(src) -I$(obj)) \
+ $(call flags,_c_flags)
+__a_flags = $(call flags,_a_flags)
+__cpp_flags = $(call flags,_cpp_flags)
endif
c_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \