- added GCC warning -Wstrict-prototypes

- fixed bug in paste material, exposed by stricter warnings.
- removed/renamed various shadowed vars.
- removed BGE lamp.colour, only allow lamp.color attribute.

source/blender/editors/interface/interface_icons.c

@@ -455,7 +455,7 @@ static void vicon_move_down_draw(int x, int y, int w, int h, float UNUSED(alpha)
 	glDisable(GL_LINE_SMOOTH);
 }
 
-static void init_brush_icons()
+static void init_brush_icons(void)
 {
 
 #define INIT_BRUSH_ICON(icon_id, name)					     \
@@ -500,7 +500,7 @@ static void init_brush_icons()
 #undef INIT_BRUSH_ICON
 }
 
-static void init_internal_icons()
+static void init_internal_icons(void)
 {
 	bTheme *btheme= U.themes.first;
 	ImBuf *bbuf= NULL;
@@ -731,7 +731,7 @@ void UI_icons_free_drawinfo(void *drawinfo)
 	}
 }
 
-static DrawInfo *icon_create_drawinfo()
+static DrawInfo *icon_create_drawinfo(void)
 {
 	DrawInfo *di = NULL;