know also installs same versions on native system , for EvilSplicer

standalone/android/install-haskell-packages

@@ -7,24 +7,24 @@
 # 
 # Needs some extra C libraries to be installed inside the cross-compiler
 # lib directory: libgnutls libxml2
+#
+# The same versions are also installed in the host system. This is needed
+# in order to use the EvilSplicer to expand Template Haskell.
 
 # lib dir
 set -e
 
-PATH=$HOME/.ghc/android-14/arm-linux-androideabi-4.7/bin:$HOME/.ghc/android-14/arm-linux-androideabi-4.7/arm-linux-androideabi/bin:$PATH
+doit () {
-
+	echo "$@"
-# Not run every time because we don't care about the latest versions.
+	eval "$@"
-if [ ! -e $HOME/.ghc/android-14/arm-linux-androideabi-4.7/cabal/packages/hackage.haskell.org ]; then
+}
-	cabal update
-fi
-
-rm -rf tmp
-mkdir tmp
-cd tmp
 
 patched () {
 	pkg=$1
 	version=$2
+	if [ "$native" ]; then
+		doit cabal install --force-reinstalls $pkg-$version
+	else
 		shift 2
 		cabal unpack $pkg-$version
 		cd $pkg-$version
@@ -32,16 +32,31 @@ patched () {
 			echo applying $patch
 			patch -p1 < $patch
 		done
-	cabal install "$@"
+		doit cabal install "$@"
 		cd ..
+	fi
 }
 
 unpatched () {
-	echo "cabal install $@"
+	if [ "$native" ]; then
-	cabal install "$@"
+		doit cabal install "$@"
+	else
+		doit cabal install "$@"
+	fi
 }
 
-unpatched bytestring-0.10.3.0 text-0.11.2.3 parsec-3.1.3
+onlycross () {
+	if [ ! "$native" ]; then
+		eval $@
+	fi
+}
+
+install_pkgs () {
+	rm -rf tmp
+	mkdir tmp
+	cd tmp
+
+	onlycross unpatched bytestring-0.10.3.0 text-0.11.2.3 parsec-3.1.3
 	patched network 2.4.1.0
 	unpatched cereal-0.3.5.2
 	patched socks 0.4.2
@@ -59,7 +74,7 @@ unpatched nats-0.1 semigroups-0.9 tagged-0.4.4 comonad-3.0.1.1 comonad-transform
 	patched profunctors 3.3
 	patched split 0.2.1.2
 	unpatched monads-tf-0.1.0.1
-patched gnutls 0.1.4
+	onlycross patched gnutls 0.1.4
 	unpatched attoparsec-0.10.4.0 blaze-builder-0.3.1.1 
 	patched syb 0.3.7
 	patched aeson 0.6.1.0
@@ -100,26 +115,42 @@ patched file-embed 0.0.4.7
 	patched gsasl 0.3.5 \
 		--ghc-options=-I$HOME/.ghc/android-14/arm-linux-androideabi-4.7/arm-linux-androideabi/sysroot/usr/include/ \
 		--ld-options="-L $HOME/.ghc/android-14/arm-linux-androideabi-4.7/arm-linux-androideabi/sysroot/usr/lib/"
-patched network-protocol-xmpp 0.4.4
+	onlycross patched network-protocol-xmpp 0.4.4
 	patched shakespeare-css 1.0.2
 	patched shakespeare-i18n 1.0.0.2
 	patched shakespeare-js 1.1.2
 	patched persistent 1.1.5.1
-unpatched largeword-1.0.4 crypto-api-0.10.2 http-date-0.0.4 \
+	onlycross unpatched largeword-1.0.4 crypto-api-0.10.2 http-date-0.0.4 \
 		cryptohash-0.8.3 vault-0.2.0.4 unix-compat-0.4.1.1 \
 		crypto-conduit-0.4.3 wai-1.3.0.3
 	patched wai-app-static 1.3.1
-patched wai-extra 1.3.2.1
+	onlycross patched wai-extra 1.3.2.1
 	patched yesod-routes 1.1.2
-unpatched http-conduit-1.8.7.1
+	onlycross unpatched http-conduit-1.8.7.1
 	patched DAV 0.3
 	patched yesod-core 1.1.8
 	patched yesod-persistent 1.1.0.1
 	patched yesod-form 1.2.1.1
-unpatched warp-1.3.7.2 yaml-0.8.2
+	onlycross unpatched warp-1.3.7.2 yaml-0.8.2
 	patched yesod-default 1.1.3.2
 	patched yesod 1.1.8
 	patched yesod-static 1.1.2
 	
 	cd ..
 	rm -rf tmp
+}
+
+# First, the native build.
+native=1
+if [ ! -e $HOME/.cabal/packages/hackage.haskell.org ]; then
+	cabal update
+fi
+install_pkgs
+
+# Now the cross compile.
+native=0
+PATH=$HOME/.ghc/android-14/arm-linux-androideabi-4.7/bin:$HOME/.ghc/android-14/arm-linux-androideabi-4.7/arm-linux-androideabi/bin:$PATH
+if [ ! -e $HOME/.ghc/android-14/arm-linux-androideabi-4.7/cabal/packages/hackage.haskell.org ]; then
+	cabal update
+fi
+install_pkgs