patch 9.0.0838: compiler warnings for unused variables

Problem:    Compiler warnings for unused variables.
Solution:   Addjust #ifdef and remove unused variables. (John Marriott)

src/gui.c

@@ -64,7 +64,9 @@ static int disable_flush = 0;	// If > 0, gui_mch_flush() is disabled.
 gui_start(char_u *arg UNUSED)
 {
     char_u	*old_term;
+#ifdef GUI_MAY_FORK
     static int	recursive = 0;
+#endif
 #if defined(GUI_MAY_SPAWN) && defined(EXPERIMENTAL_GUI_CMD)
     char	*msg = NULL;
 #endif
@@ -76,9 +78,8 @@ gui_start(char_u *arg UNUSED)
 	cursor_on();			// needed for ":gui" in .vimrc
     full_screen = FALSE;
 
-    ++recursive;
-
 #ifdef GUI_MAY_FORK
+    ++recursive;
     /*
      * Quit the current process and continue in the child.
      * Makes "gvim file" disconnect from the shell it was started in.
@@ -153,7 +154,9 @@ gui_start(char_u *arg UNUSED)
     gui_mch_update();
     apply_autocmds(gui.in_use ? EVENT_GUIENTER : EVENT_GUIFAILED,
 						   NULL, NULL, FALSE, curbuf);
+#ifdef GUI_MAY_FORK
     --recursive;
+#endif
 }
 
 /*

src/gui_w32.c

@@ -6190,13 +6190,11 @@ gui_mch_draw_string(
 	// handled here.
 	int		i;
 	int		wlen;	// string length in words
-	int		clen;	// string length in characters
 	int		cells;	// cell width of string up to composing char
 	int		cw;	// width of current cell
 	int		c;
 
 	wlen = 0;
-	clen = 0;
 	cells = 0;
 	for (i = 0; i < len; )
 	{
@@ -6236,7 +6234,6 @@ gui_mch_draw_string(
 	    }
 	    cells += cw;
 	    i += utf_ptr2len_len(text + i, len - i);
-	    ++clen;
 	}
 #if defined(FEAT_DIRECTX)
 	if (IS_ENABLE_DIRECTX())

src/os_win32.c

@@ -4394,7 +4394,6 @@ dump_pipe(int	    options,
     int		ret;
     DWORD	len;
     DWORD	toRead;
-    int		repeatCount;
 
     // we query the pipe to see if there is any data to read
     // to avoid to perform a blocking read
@@ -4405,11 +4404,9 @@ dump_pipe(int	    options,
 			&availableBytes,    // available bytes total
 			NULL);		    // byteLeft
 
-    repeatCount = 0;
     // We got real data in the pipe, read it
     while (ret != 0 && availableBytes > 0)
     {
-	repeatCount++;
 	toRead = (DWORD)(BUFLEN - *buffer_off);
 	toRead = availableBytes < toRead ? availableBytes : toRead;
 	ReadFile(g_hChildStd_OUT_Rd, buffer + *buffer_off, toRead , &len, NULL);

src/version.c

@@ -695,6 +695,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    838,
 /**/
     837,
 /**/