Re: [PATCH] fix include paths when the kernel source and build directory are different

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Jan Kiszka wrote:
Avi Kivity wrote:
James Pike wrote:
Use correct architecture includes when kernel source and build directory
are different.
Signed-off-by: James Pike <james@xxxxxxxxxx>
  --- a/Makefile
+++ b/Makefile
@@ -27,8 +27,9 @@ all:: prerequisite
 #    include header priority 1) $LINUX 2) $KERNELDIR 3) include-compat
     $(MAKE) -C $(KERNELDIR) M=`pwd` \
         LINUXINCLUDE="-I`pwd`/include -Iinclude \
-        $(if $(KERNELSOURCEDIR),-Iinclude2
-I$(KERNELSOURCEDIR)/include) \
-        -Iarch/${ARCH_DIR}/include -I`pwd`/include-compat \
+        $(if $(KERNELSOURCEDIR),\
+            -Iinclude2 -I$(KERNELSOURCEDIR)/include
-I$(KERNELSOURCEDIR)/arch/${ARCH_DIR}/include, \
+            -Iarch/${ARCH_DIR}/include) -I`pwd`/include-compat \
         -include include/linux/autoconf.h \
         -include `pwd`/$(ARCH_DIR)/external-module-compat.h
$(module_defines)" \
         "$$@"
This removes -Iarch/${ARCH_DIR}/include when KERNELSOURCEDIR is not
defined.  What is the reason for this change?


As far as I can see (I do wear my glasses today...),
-Iarch/${ARCH_DIR}/include is present in the else part of $(if).

Yeah, I missed the comma.  Maybe I need to visit your optometrist.

The reason for this change is the missing arch include from the source
directory in case it's separate from the build dir (yeah, the changelog
has room for improvements).

I ran into the same issue after building and installing a recent kernel
tree with O=. The split trees SUSE leaves behind do not suffer from
this, but they also still work after the change. Same for classic
unified trees.

Okay, will apply the patch.

--
error compiling committee.c: too many arguments to function

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