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_gtk_x11.pro b/src/proto/gui_gtk_x11.pro
index f663dba..124e2ae 100644
--- a/src/proto/gui_gtk_x11.pro
+++ b/src/proto/gui_gtk_x11.pro
@@ -66,7 +66,7 @@
void gui_mch_menu_hidden(vimmenu_T *menu, int hidden);
void gui_mch_draw_menubar(void);
void gui_mch_enable_scrollbar(scrollbar_T *sb, int flag);
-long_u gui_mch_get_rgb(guicolor_T pixel);
+guicolor_T gui_mch_get_rgb(guicolor_T pixel);
void gui_mch_getmouse(int *x, int *y);
void gui_mch_setmouse(int x, int y);
void gui_mch_mousehide(int hide);