use anonymous files for here-documents if available and the document size exceeds pipe capacity; fixes to build if multibyte characters are unavailable; fix potential overflow with extrememly long $'...' strings; fix for readline redisplay highlighting with a zero-length region

lib/glob/glob.c

@@ -120,10 +120,14 @@ static char **glob_dir_to_array (char *, char **, int);
 
 /* Make sure these names continue to agree with what's in smatch.c */
 extern char *glob_patscan (char *, char *, int, int);
+#if defined (HANDLE_MULTIBYTE)
 extern wchar_t *glob_patscan_wc (wchar_t *, wchar_t *, wint_t, int);
+#endif
 
 /* And this from gmisc.c/gm_loop.c */
+#if defined (HANDLE_MULTIBYTE)
 extern int wextglob_pattern_p (wchar_t *);
+#endif
 
 extern char *glob_dirscan (char *, int);
 

lib/readline/display.c

@@ -1065,7 +1065,9 @@ rl_redisplay (void)
   for (in = 0; in < rl_end; in++)
 #endif
     {
-      if (in == hl_begin)
+      if (hl_begin == hl_end)
+	cur_face = FACE_NORMAL;			/* zero-length region/paste */
+      else if (in == hl_begin)
 	cur_face = FACE_STANDOUT;
       else if (in == hl_end)
 	cur_face = FACE_NORMAL;

lib/sh/strtrans.c

@@ -50,11 +50,11 @@
 char *
 ansicstr (const char *string, size_t len, int flags, int *sawc, size_t *rlen)
 {
-  int c, temp;
+  int c;
   char *ret, *r;
   const char *s;
   unsigned long v;
-  size_t clen;
+  size_t temp, clen;
   size_t mb_cur_max;
 #if defined (HANDLE_MULTIBYTE)
   wchar_t wc;