Pass the RE_ICASE flag to re_set_syntax() as appropriate to fix

case-insensitive matching (-i option) in certain multibyte locales.

Obtained from:	Fedora

1 files changed, 3 insertions, 3 deletions

diff --git a/gnu/usr.bin/grep/search.c b/gnu/usr.bin/grep/search.c
index cf478c509342..1e5769465cf4 100644
--- a/gnu/usr.bin/grep/search.c
+++ b/gnu/usr.bin/grep/search.c
@@ -169,7 +169,7 @@ Gcompile (char const *pattern, size_t size)
   char const *motif = pattern;
 
   check_utf8 ();
-  re_set_syntax (RE_SYNTAX_GREP | RE_HAT_LISTS_NOT_NEWLINE);
+  re_set_syntax (RE_SYNTAX_GREP | RE_HAT_LISTS_NOT_NEWLINE | (match_icase ? RE_ICASE : 0));
   dfasyntax (RE_SYNTAX_GREP | RE_HAT_LISTS_NOT_NEWLINE, match_icase, eolbyte);
 
   /* For GNU regex compiler we have to pass the patterns separately to detect
@@ -248,12 +248,12 @@ Ecompile (char const *pattern, size_t size)
   check_utf8 ();
   if (strcmp (matcher, "awk") == 0)
     {
-      re_set_syntax (RE_SYNTAX_AWK);
+      re_set_syntax (RE_SYNTAX_AWK | (match_icase ? RE_ICASE : 0));
       dfasyntax (RE_SYNTAX_AWK, match_icase, eolbyte);
     }
   else
     {
-      re_set_syntax (RE_SYNTAX_POSIX_EGREP);
+      re_set_syntax (RE_SYNTAX_POSIX_EGREP | (match_icase ? RE_ICASE : 0));
       dfasyntax (RE_SYNTAX_POSIX_EGREP, match_icase, eolbyte);
     }