Sync dfa.c with grep on bugfix for DJGPP.

2 files changed, 6 insertions, 1 deletions

diff --git a/ChangeLog b/ChangeLog
index 6482baf5..54f96cc3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2012-01-13         Arnold D. Robbins     <arnold@skeeve.com>
+
+	* dfa.c [is_valid_unibtye_character]: Fix from GNU grep to 
+	bug reported by me from Scott Deifik for DJGPP.
+
 2012-01-03         Arnold D. Robbins     <arnold@skeeve.com>
 
 	* dfa.c: Sync with GNU grep.
diff --git a/dfa.c b/dfa.c
index 172ff794..012251a3 100644
--- a/dfa.c
+++ b/dfa.c
@@ -1083,7 +1083,7 @@ parse_bracket_exp (void)
 #ifdef __GLIBC__
 # define is_valid_unibyte_character(c) 1
 #else
-# define is_valid_unibyte_character(c) (MBS_SUPPORT && btowc (c) != WEOF)
+# define is_valid_unibyte_character(c) (! (MBS_SUPPORT && btowc (c) == WEOF))
 #endif
 
 /* Return non-zero if C is a `word-constituent' byte; zero otherwise.  */