.PHONY: phase_1_builds
phase_1_builds: $(PACKAGE_DATA_MKS)
+# -----------------------------------------------------------------------------
+# Support for writing GHC passes in Coq
+
+compiler/hetmet/Makefile:
+ git submodule update --init compiler/hetmet
+ cd compiler/hetmet/; git checkout master
+compiler/hetmet/build/CoqPass.hs: compiler/hetmet/Makefile $(wildcard compiler/hetmet/src/*.v) $(wildcard compiler/hetmet/src/*.hs)
+ cd compiler/hetmet; make build/CoqPass.hs
+compiler/stage1/build/CoqPass.hs: compiler/hetmet/build/CoqPass.hs
+ cp compiler/hetmet/build/CoqPass.hs $@
+compiler/stage2/build/CoqPass.hs: compiler/hetmet/build/CoqPass.hs
+ cp compiler/hetmet/build/CoqPass.hs $@