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Re: [RFA/libiberty] Fix documentation issues in filename_cmp.c

> Date: Sat, 7 Apr 2007 13:35:00 -0400
> From: Daniel Jacobowitz <drow@false.org>
> Cc: Joel Brobecker <brobecker@adacore.com>, gcc-patches@gcc.gnu.org,
> 	gdb-patches@sourceware.org
> 
> In the POSIX locale, strcasecmp() and strncasecmp() shall behave as if
> the strings had been converted to lowercase and then a byte comparison
> performed. The results are unspecified in other locales.

That's what I suspected.

> 2.  Glibc's strcasecmp uses tolower and honors LC_COLLATE.

But the version in libiberty only handles ASCII.

> Which behavior do we want here, anyway?  I'm not sure...

I think we should fold only ASCII characters, since it's consistent
with libiberty's strcasecmp.
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