kbuild: add arch/$ARCH/include to search path
Sam Ravnborg [Sun, 22 Jun 2008 19:48:26 +0000 (21:48 +0200)]
This patch conclude the support for

   arch/$ARCH/include

Note: The individual architectures will most likely require
      a few minor patches to support locating header files in
      arch/$ARCH/include

Testing shows that it worked out-of-the-box for sparc.
x86 required a few trivial changes in the arch
specific Makefile and a few include paths had to be adjusted.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

Makefile

index f6fcad7..828c838 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -329,7 +329,8 @@ AFLAGS_KERNEL       =
 # Needed to be compatible with the O= option
 LINUXINCLUDE    := -Iinclude \
                    $(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \
-                  -include include/linux/autoconf.h
+                   -I$(srctree)/arch/$(hdr-arch)/include               \
+                   -include include/linux/autoconf.h
 
 KBUILD_CPPFLAGS := -D__KERNEL__ $(LINUXINCLUDE)