Update.

	* posix/tst-fnmatch.input: Add test case for FNM_PERIOD handling with
	FNM_EXTMATCH.

	* posix/fnmatch_loop.c: Optimize handling of ?() and @().
	* posix/fnmatch.c: Define STRLEN and STRCAT appropriately.

	* posix/Versions [libc] (GLIBC_2.2.3): Add fnmatch.
	* posix/fnmatch.c: Define with new default version GLIBC_2.2.3 to
	avoid running binaries with libc versions without FNM_EXTMATCH support.

	* include/wchar.h: Add prototype for __wcscat.
	* wcsmbs/wcscat.c: Define __wcscat and make wcscat weak alias.

1 files changed, 32 insertions, 0 deletions

diff --git a/manual/pattern.texi b/manual/pattern.texi
index 6479a1fbec..f4f1424092 100644
--- a/manual/pattern.texi
+++ b/manual/pattern.texi
@@ -99,6 +99,38 @@ would match the string @samp{foobar/frobozz}.
 @comment GNU
 @item FNM_CASEFOLD
 Ignore case in comparing @var{string} to @var{pattern}.
+
+@comment fnmatch.h
+@comment GNU
+@item FNM_EXTMATCH
+@cindex Korn Shell
+@pindex ksh
+Recognize beside the normal patterns also the extended patterns
+introduced in @file{ksh}.  The patterns are written in the form
+explained in the following table where @var{pattern-list} is a @code{|}
+separated list of patterns.
+
+@table @code
+@item ?(@var{pattern-list})
+The pattern matches if zero or one occurences of any of the patterns
+in the @var{pattern-list} allow matching the input string.
+
+@item *(@var{pattern-list})
+The pattern matches if zero or more occurences of any of the patterns
+in the @var{pattern-list} allow matching the input string.
+
+@item +(@var{pattern-list})
+The pattern matches if one or more occurences of any of the patterns
+in the @var{pattern-list} allow matching the input string.
+
+@item @@(@var{pattern-list})
+The pattern matches if exactly one occurence of any of the patterns in
+the @var{pattern-list} allows matching the input string.
+
+@item !(@var{pattern-list})
+The pattern matches if the input string cannot be matched with any of
+the patterns in the @var{pattern-list}.
+@end table
 @end table
 
 @node Globbing