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Date: Tue, 19 Jun 2012 13:09:48 +0200
From: Jim Meyering <>
To: Bruno Haible <>
Cc:,,  Eric Blake <>,  Rich Felker <>,  Isaac Dunham <>
Subject: Re: musl, fdopen test

Bruno Haible wrote:
>> My thought in having musl skip the test is to maximize performance of
>> fdopen, assuming you might be using it in a situation like on a newly
>> accept()ed network connection where every syscall counts (think
>> multi-threaded httpd). For read-only fdopen, no syscalls are needed,
> Sounds reasonable.
> Here's a proposed patch to remove gnulib's unintentional requirement.
> 2012-06-19  Bruno Haible  <>
> 	fdopen: Allow implementations that don't reject invalid fd arguments.
> 	* m4/fdopen.m4 (gl_FUNC_FDOPEN): Let the test pass if fdopen(-1,...)
> 	succeeds.
> 	Reported by Rich Felker <>.

Thanks, Bruno.
That patch looks perfect.

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