diff --git a/druntime/posix.mak b/druntime/posix.mak
new file mode 100644
index 0000000000..062a7c12e7
--- /dev/null
+++ b/druntime/posix.mak
@@ -0,0 +1,11 @@
+$(warning ===== DEPRECATION NOTICE ===== )
+$(warning ===== DEPRECATION: posix.mak is deprecated. Please use generic Makefile instead.)
+$(warning ============================== )
+
+# forward everything to Makefile
+
+target:
+	$(MAKE) -f Makefile $@
+
+%:
+	$(MAKE) -f Makefile $@