Simplifying/optimizing Makefile

Makefile

@@ -1,13 +1,16 @@
-all:
+all: setup
 	@echo "Please use Cabal to build this package; not make."
-	runghc Setup.lhs configure
-	runghc Setup.lhs build
+	./setup configure
+	./setup build
+
+setup: Setup.hs
+	ghc --make -package cabal -o setup Setup.hs
 
 install:
-	runghc Setup.lhs install
+	./setup install
 
 clean:
-	runghc Setup.lhs clean
+	-runghc Setup.hs clean
 	-rm -rf html `find . -name "*.o"` `find . -name "*.hi" | grep -v debian` \
 		`find . -name "*~" | grep -v debian` *.a setup dist testsrc/runtests \
 		local-pkg doctmp
@@ -20,14 +23,14 @@ test: test-ghc test-hugs
 
 test-hugs:
 	@echo " ****** Running hugs tests"
-	runghc Setup.lhs configure -f buildtests --hugs --extra-include-dirs=/usr/lib/hugs/include
-	runghc Setup.lhs build
+	./setup configure -f buildtests --hugs --extra-include-dirs=/usr/lib/hugs/include
+	./setup build
 	runhugs -98 +o -P$(PWD)/dist/scratch:$(PWD)/dist/scratch/programs/runtests: \
 		dist/scratch/programs/runtests/Main.hs
 
 test-ghc:
 	@echo " ****** Building GHC tests"
-	runghc Setup.lhs configure -f buildtests
-	runghc Setup.lhs build
+	./setup configure -f buildtests
+	./setup build
 	@echo " ****** Running GHC tests"
 	./dist/build/runtests/runtests

Setup.hs

@@ -0,0 +1,6 @@
+#!/usr/bin/env runhugs
+
+import Distribution.Simple
+
+main = defaultMain
+