libc/posix regcomp.c

[drepper@sources.redhat.com]

CVSROOT:	/cvs/glibc
Module name:	libc
Changes by:	drepper@sourceware.org	2003-12-22 06:45:05

Modified files:
	posix          : regcomp.c 

Log message:
	(parse_dup_op): Return NULL if dup_elem is NULL,
	after checking syntax.  Optimize.
	(calc_first): Fix comment.
	
	(duplicate_node, duplicate_node_closure): Revert 2003-11-24 changes.