Re: use of __gen_tempname

[Eric Blake]

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According to Bruno Haible on 11/7/2006 6:40 AM:
> Hi Eric,
> 
> Sorry for the late remark. (I haven't been able to follow the tempname
> thread.)
> 
> In lib/tempname.c you added code that uses the function __gen_tempname from
> libc if it is present. I assume this is for glibc? This __gen_tempname
> function is not part of the public ABI of glibc: it is not listed in any
> of the 'Versions' files in glibc-2.3.6 nor glibc-2.5. In fact, on a
> glibc-2.3.6 system where glibc was built with sufficiently recent gcc
> and binutils, the symbol is not exported:

Thanks for the information.  I knew glibc provided source for
__gen_tempname, but was unsure why even on Linux my configure snippet
wasn't detecting it.

> I think it is preferable to build a binary that is 1 KB bigger but
> continues working after an OS upgrade. Hence this proposed patch.
> 
> 2006-11-06  Bruno Haible  <address@hidden>
> 
>       * lib/tempname.c (gen_tempname): Remove variant that invokes
>       __gen_tempname.
>       * m4/tempname.m4 (gl_FUNC_GEN_TEMPNAME): Don't test for __gen_tempname.

Please apply.

- --
Life is short - so eat dessert first!

Eric Blake             address@hidden
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