patch 7.4.2243
Problem: Warning for assigning negative value to unsigned. (Danek Duvall)
Solution: Make cterm_normal_fg_gui_color and _bg_ guicolor_T, cast to long_u
only when an unsigned is needed.
diff --git a/src/proto/gui_w32.pro b/src/proto/gui_w32.pro
index 20a92b9..2eccf74 100644
--- a/src/proto/gui_w32.pro
+++ b/src/proto/gui_w32.pro
@@ -35,7 +35,7 @@
void gui_mch_set_menu_pos(int x, int y, int w, int h);
void gui_mch_menu_hidden(vimmenu_T *menu, int hidden);
void gui_mch_draw_menubar(void);
-long_u gui_mch_get_rgb(guicolor_T pixel);
+guicolor_T gui_mch_get_rgb(guicolor_T pixel);
void gui_mch_activate_window(void);
void gui_mch_show_toolbar(int showit);
void gui_mch_show_tabline(int showit);