[PATCH] Fix regex bug with empty alternatives

[Ulrich Drepper]

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Jakub Jelinek wrote:

> 2002-08-08  Jakub Jelinek  <jakub@redhat.com>
> 
> 	* posix/regcomp.c (parse_reg_exp): If '|' is immediately followed
> 	by another '|', end of regex or enclosing ')', clear branch.
> 	* posix/bug-regex9.c: New test.
> 	* posix/Makefile (tests): Add bug-regex9.

I've applied this patch now.  Thanks,

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