-ifeq ($(shell $(PKG_CONFIG) --exists xcb-util 2>/dev/null || echo 1),1)
-XCB_CFLAGS += $(call cflags_for_lib, xcb-atom)
-XCB_CFLAGS += $(call cflags_for_lib, xcb-aux)
-XCB_LIBS += $(call ldflags_for_lib, xcb-atom,xcb-atom)
-XCB_LIBS += $(call ldflags_for_lib, xcb-aux,xcb-aux)
-XCB_CPPFLAGS+= -DXCB_COMPAT
-else