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Re: test for basename failure
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From: |
Eric Blake |
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Subject: |
Re: test for basename failure |
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Date: |
Mon, 15 Nov 2010 08:45:58 -0700 |
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Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.12) Gecko/20101103 Fedora/1.0-0.33.b2pre.fc14 Lightning/1.0b3pre Mnenhy/0.8.3 Thunderbird/3.1.6 |
On 11/15/2010 12:01 AM, Paul Eggert wrote:
> On 11/14/2010 04:16 PM, Jerker Bäck wrote:
>> Nothing to do with autoconf then?
>
> That's right. Though they probably need to do something more complicated
> than what you suggest. Perhaps they should use gnulib's basename package;
> it should do the right thing.
Actually, gnulib's basename package is misnamed; it only provides
base_name (and not the POSIX basename). This is because the POSIX
specification of basename() is rather weak (it's not guaranteed to be
threadsafe, for starters); whereas base_name() has reliable semantics
(it always mallocs the result in a threadsafe manner).
But Paul is correct - the problematic packages should either fix up
their checks for basename() or consider using gnulib's base_name().
--
Eric Blake address@hidden +1-801-349-2682
Libvirt virtualization library http://libvirt.org
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