Spelling fix: usefull --> useful.

Thank you Curtis Brown for the patch.

This resolves bug #27052.

src/Makefile.in

@@ -25,7 +25,10 @@ SCREEN = screen-$(VERSION)
 GIT_REV = "`git describe --always 2>/dev/null`"
 DEFS = @DEFS@ -DGIT_REV=\"$(GIT_REV)\"
 
-ETCSCREENRC = $(prefix)/etc/screenrc
+ETCSCREENRC = @ETCSCREENRC@
+ifeq (${ETCSCREENRC}, )
+ETCSCREENRC=$(prefix)/etc/screenrc
+endif
 SCREENENCODINGS = $(datadir)/screen/utf8encodings
 
 CC = @CC@

src/NEWS.3.5

@@ -77,7 +77,7 @@
   document.
 
 * Screen can now be started detached (screen -d -m -S sockname).
-  This is usefull if you want to start screen in your /etc/rc file
+  This is useful if you want to start screen in your /etc/rc file
   (e.g. as a console multiplexer)
 
 * Console grabbing added ('console on' command). 

src/configure.in

@@ -1294,6 +1294,11 @@ test -n "$seqptx" && LIBS="-ltermcap -lc -lsocket -linet -lnsl -lsec -lseq"
 
 AC_TRY_RUN(main(){exit(0);},,AC_MSG_ERROR(Can't run the compiler - internal error. Sorry.))
 
+ETCSCREENRC=
+AC_MSG_CHECKING(for the global screenrc file)
+AC_ARG_WITH(sys-screenrc, [  --with-sys-screenrc=path to the global screenrc file], [ ETCSCREENRC="${withval}" ])
+AC_SUBST(ETCSCREENRC)
+
 AC_OUTPUT(Makefile doc/Makefile, [[
 # a hook for preserving undef directive in config.h
 mv config.h conftest

src/display.c

@@ -2524,7 +2524,7 @@ int from, to, y, bce;
       DisplayLine(oml, &mline_blank, y, from, to);
       return;
     }
-  bcechar = mchar_blank;
+  bcechar = mchar_null;
   rend_setbg(&bcechar, bce);
   for (x = from; x <= to; x++)
     copy_mchar2mline(&bcechar, &mline_old, x);

src/layer.c

@@ -335,7 +335,13 @@ int x, y;
 #endif
 
   if (l->l_pause.d)
-    LayPauseUpdateRegion(l, x, x, y, y);
+    LayPauseUpdateRegion(l, x,
+#ifdef DW_CHARS
+	x + (c->mbcs ? 1 : 0)
+#else
+	x
+#endif
+	, y, y);
 
   FOR_EACH_UNPAUSED_CANVAS(l,
     {

src/layout.c

@@ -64,7 +64,7 @@ CreateLayout(title, startat)
 char *title;
 int startat;
 {
-  struct layout *lay;
+  struct layout *lay, **pl;
   int i;
 
   if (startat >= MAXLAY || startat < 0)
@@ -86,8 +86,12 @@ int startat;
   lay->lay_autosave = 1;
   lay->lay_number = i;
   laytab[i] = lay;
-  lay->lay_next = layouts;
-  layouts = lay;
+  lay->lay_next = 0;
+
+  pl = &layouts;
+  while (*pl)
+    pl = &(*pl)->lay_next;
+  *pl = lay;
   return lay;
 }
 

src/mark.c

@@ -771,7 +771,7 @@ processchar:
             LGotoPos(flayer, cx, W2D(cy));
 	  break;
 	case '@':
-	  /* it may be usefull to have a key that does nothing */
+	  /* it may be useful to have a key that does nothing */
 	  break;
 	case '%':
 	  rep_cnt--;

src/resize.c

@@ -1048,8 +1048,8 @@ struct win *p;
     }
   p->w_alt.hlines = 0;
   p->w_alt.histidx = 0;
-#endif
   p->w_alt.histheight = 0;
+#endif
 }
 
 static void
@@ -1064,9 +1064,9 @@ struct win *p;
   SWAP(mlines, ml);
   SWAP(width, t);
   SWAP(height, t);
-  SWAP(histheight, t);
 
 #ifdef COPY_PASTE
+  SWAP(histheight, t);
   SWAP(hlines, ml);
   SWAP(histidx, t);
 #endif

src/window.c

@@ -642,7 +642,7 @@ struct NewWindow *newwin;
 #ifdef MULTIUSER
   /*
    * This is dangerous: without a display we use creators umask
-   * This is intended to be usefull for detached startup.
+   * This is intended to be useful for detached startup.
    * But is still better than default bits with a NULL user.
    */
   if (NewWindowAcl(p, display ? D_user : users))

src/window.h

@@ -283,12 +283,14 @@ struct win
     struct mline *mlines;
     int    width;
     int    height;
-    int    histheight;
 #ifdef COPY_PASTE
+    int    histheight;
     struct mline *hlines;
     int    histidx;
-    struct cursor cursor;
+#else
+    int histheight;	/* 0 */
 #endif
+    struct cursor cursor;
   } w_alt;
 
   struct event w_destroyev;	/* window destroy event */