Ignore availibility warnings

Makefile

@@ -5,7 +5,7 @@ include $(THEOS)/makefiles/common.mk
 
 TWEAK_NAME = tfdidthatsay
 tfdidthatsay_FILES = $(wildcard tweak/*.xm tweak/assets/*.m tweak/assets/MMMarkdown/*.m)
-tfdidthatsay_CFLAGS = -fobjc-arc
+tfdidthatsay_CFLAGS = -fobjc-arc -Wno-unguarded-availability-new
 tweak/Reddit.xm_CFLAGS = -fno-objc-arc
 tweak/Apollo.xm_CFLAGS = -fno-objc-arc