# HG changeset patch
# User Ulrich Drepper <drepper@redhat.com>
# Date 1262599191 -3600
# Node ID 64d47f00112715ddb880c2f81e7558abc5ac78d7
# Parent  3ed9d84fee817a55ce44d108f6a9424efafe8703
regcomp: skip collseq lookup when there are no rules

* lib/regcomp.c (lookup_collation_sequence_value): From glibc:
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=a532a41df58

diff --git a/ChangeLog b/ChangeLog
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2010-01-04  Jim Meyering  <meyering@redhat.com>
 
+	regcomp: skip collseq lookup when there are no rules
+	* lib/regcomp.c (lookup_collation_sequence_value): From glibc:
+	http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=a532a41df58
+
 	regcomp: recognize ill-formed { } expressions
 	* lib/regcomp.c (parse_dup_op): From glibc:
 	http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=a87cd2894cb
diff --git a/lib/regcomp.c b/lib/regcomp.c
--- a/lib/regcomp.c
+++ b/lib/regcomp.c
@@ -2804,7 +2804,7 @@
       return elem;
     }
 
-  /* Local function for parse_bracket_exp used in _LIBC environement.
+  /* Local function for parse_bracket_exp used in _LIBC environment.
      Look up the collation sequence value of BR_ELEM.
      Return the value if succeeded, UINT_MAX otherwise.  */
 
@@ -2828,7 +2828,8 @@
 	}
       else if (br_elem->type == MB_CHAR)
 	{
-	  return __collseq_table_lookup (collseqwc, br_elem->opr.wch);
+	  if (nrules != 0)
+	    return __collseq_table_lookup (collseqwc, br_elem->opr.wch);
 	}
       else if (br_elem->type == COLL_SYM)
 	{