From mboxrd@z Thu Jan  1 00:00:00 1970
From: Junio C Hamano <gitster@pobox.com>
Subject: Re: Problem running 'make install' as root when on mounted fs
Date: Fri, 07 Aug 2009 10:51:12 -0700
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To: Alex Blewitt <alex.blewitt@gmail.com>
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In-Reply-To: <8F9F4A8A-9515-4A7D-90EE-4BD3DA3F7A2B@gmail.com> (Alex Blewitt's
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Alex Blewitt <alex.blewitt@gmail.com> writes:

> I think it would be possible to restrict the GIT-BUILD-OPTIONS to be
> generated during a build phase, so restructuring the Makefile like:
>
> install: build
> all:: build GIT-BUILD-OPTIONS
> build: ...

If you did:

	make prefix=$HOME all
        make prefix=/usr install

then the second step needs to notice that the gitexecdir computed and
stored in exec_cmd.o in the first step is now invalid, and needs to
recompile the file.  The whole purpose of GIT-BUILD-OPTIONS is to detect
such a case---doesn't your change defeat it?