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Date: Tue, 13 Sep 2005 22:55:06 +0100
From: Al Viro <viro@ZenIV.linux.org.uk>
To: Sam Ravnborg <sam@ravnborg.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>,
       LKML <linux-kernel@vger.kernel.org>, jdike@addtoit.com
Subject: Re: asm-offsets.h is generated in the source tree
Message-ID: <20050913215506.GU25261@ZenIV.linux.org.uk>
References: <20050910161917.GA22113@mars.ravnborg.org> <20050911023203.GH25261@ZenIV.linux.org.uk> <20050911083153.GA24176@mars.ravnborg.org> <20050911154550.GJ25261@ZenIV.linux.org.uk> <20050911170425.GA8049@mars.ravnborg.org> <20050911212942.GK25261@ZenIV.linux.org.uk> <20050911220328.GE2177@mars.ravnborg.org> <20050911231601.GL25261@ZenIV.linux.org.uk> <20050912191525.GA13435@mars.ravnborg.org> <20050913063028.GQ25261@ZenIV.linux.org.uk>
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On Tue, Sep 13, 2005 at 07:30:28AM +0100, Al Viro wrote:
> * Provide a function that would
> 	take target of form <directory>/.<link>
> 	create a symlink at <directory>/<link> to argument of function,
> doing obvious changes for O=
> 	touch the target

ifneq ($(KBUILD_SRC),)
define symlink
        $(Q)mkdir -p $(dir $@)
        $(Q)ln -sn $(srctree)/$(dir $@)/$1 $(dir $@)$(patsubst .%,%,$(notdir $@))
        $(Q)touch $@
endef
else
define symlink
        $(Q)ln -sn $1 $(dir $@)$(patsubst .%,%,$(notdir $@))
        $(Q)touch $@
endef
endif

would do it, AFAICS.  Objections?