--- Makefile
+++ Makefile
@@ -305,6 +305,11 @@
 		-Wno-missing-field-initializers -fno-delete-null-pointer-checks
 endif
 
+ifeq ($(shell uname), Darwin)
+HOSTCFLAGS += -I../darwin-musl -w
+HOSTCXXFLAGS += -I../darwin-musl -w
+endif
+
 # Decide whether to build built-in, modular, or both.
 # Normally, just do built-in.