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Date: Wed, 04 Mar 2015 16:52:28 +0000
From: Neil Henning <>
Subject: Re: Patch to allow configure out-with source directory

So I'm building musl as an ExternalProject from cmake - this problem 
solves the issue that the working directory from which the configure 
inside musl is called is different from the musl source directory. This 
allows the configure script to be called from an arbitrary path, and 
create the config.mak file in a separate folder to the musl source 
folder (but you are correct in that the remainder of the build still 
takes place within the musl source dir).


On 04/03/15 16:41, Rich Felker wrote:
> On Wed, Mar 04, 2015 at 09:25:39AM +0000, Neil Henning wrote:
>> Hey (new to the list),
>> Below is a patch to allow the running of configure out-with the
>> source directory (basically just looks up the path to the configure
>> script, and then bases the -I includes in the check steps on this
>> path).
>> Any questions please get in touch,
> Could you clarify what problem it solves? I don't think this is
> anywhere near sufficient to support out-of-tree builds. That's a
> difficult problem which nsz worked on in the past but didn't complete
> because we kept running into corner cases that broke.
> Rich

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