linux-kernel - Re: Fail to build Linux with O= in master

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Date:   Sat, 30 Sep 2017 09:37:53 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Julien Grall <julien.grall@....com>
Cc:     Michal Marek <mmarek@...e.com>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: Fail to build Linux with O= in master

2017-09-30 8:59 GMT+09:00 Julien Grall <julien.grall@....com>:
> Hello,
>
> I have tried to build the latest master and got the following error:
>
> 42sh> make O=~/works/linux-build/aarch64-4k -C ~/works/linux
> make: Entering directory '/home/julgra01/works/linux'
> Makefile:135: *** failed to create output directory "~/works/linux-build/aarch64-4k".  Stop.
> make: Leaving directory '/home/julgra01/works/linux'
>
> The bisector found the commit 8e9b466 "kbuild: use $(abspath ...)
> instead of $(shell cd ... && /bin/pwd)".
>
> Looking at the code, it seems that it is because the code is
> now using $(realpath ...). Indeed when I replace ~ by $HOME
> the kernel is now built.
>
> I am not a Makefile expert, so I would appreciate if anyone
> could suggest a patch for this.
>

Thanks for the report.

Which shell are you using?


I use bash and I have no problem.
If I try dash, indeed, it fails.

I will take a look.




-- 
Best Regards
Masahiro Yamada