grep: -z '.' now consistently matches newline

Problem reported by Balazs Kezes in: http://bugs.gnu.org/20974
* NEWS: Document this.
* tests/utf8-bracket: New file, to test for this bug.
* src/grep.c (Gcompile, Ecompile): Also specify RE_DOT_NEWLINE.
* tests/Makefile.am (TESTS): Add it.

1 files changed, 4 insertions, 3 deletions

diff --git a/src/grep.c b/src/grep.c
index 778dbcb1..ed54dc23 100644
--- a/src/grep.c
+++ b/src/grep.c
@@ -1861,15 +1861,16 @@ if any error occurs and -q is not given, the exit status is 2.\n"));
 static void
 Gcompile (char const *pattern, size_t size)
 {
-  GEAcompile (pattern, size, RE_SYNTAX_GREP | RE_NO_EMPTY_RANGES);
+  GEAcompile (pattern, size,
+              RE_SYNTAX_GREP | RE_DOT_NEWLINE | RE_NO_EMPTY_RANGES);
 }
 
 static void
 Ecompile (char const *pattern, size_t size)
 {
   GEAcompile (pattern, size,
-              (RE_SYNTAX_POSIX_EGREP | RE_NO_EMPTY_RANGES
-               | RE_UNMATCHED_RIGHT_PAREN_ORD));
+              (RE_SYNTAX_POSIX_EGREP | RE_DOT_NEWLINE
+               | RE_NO_EMPTY_RANGES | RE_UNMATCHED_RIGHT_PAREN_ORD));
 }
 
 static void