Re: kbuild-permanently-fix-kernel-configuration-include-mess.patch added to -mm tree

[Sam Ravnborg]

>  # Use LINUXINCLUDE when you must reference the include/ directory.
>  # Needed to be compatible with the O= option
>  LINUXINCLUDE    := -Iinclude \
> -                   $(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include)
> +                   $(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \
> +		   -imacros include/linux/autoconf.h
>  
What is the purpose of using -imacros instead of -iinclude

o -iinclude is much more commonly used for this purpose.
o sparse has limited support(*) for -iinclude today
o -imacros will silently ignore any output caused by the file

	Sam
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