change uulib to store all dependencies to package.conf

added ghc-wrapper to use a generated global package.conf
added uuagc

svn path=/nixpkgs/trunk/; revision=4608

pkgs/development/compilers/ghc-wrapper/builder.sh

@@ -0,0 +1,32 @@
+source $stdenv/setup
+
+makeWrapper() {
+  wrapperBase="$1"
+  wrapperName="$2"
+  wrapper="$out/$wrapperName"
+  shift; shift #the other arguments are passed to the source app
+  echo '#!'"$SHELL" > "$wrapper"
+  echo "exec \"$wrapperBase/$wrapperName\" $@" '"$@"' > "$wrapper"
+  chmod +x "$wrapper"
+}
+
+mkdir -p $out/nix-support $out/bin
+packages_db=$out/nix-support/package.conf
+
+#create packages database (start with compiler base packages)
+cp $ghc/lib/ghc-*/package.conf $packages_db
+chmod +w $packages_db
+for lib in $libraries; do
+  sh $lib/nix-support/register.sh $packages_db || exit 1
+done
+rm -f $packages_db.old
+
+#create the wrappers 
+#NB: The double dash for ghc-pkg is not a typo!
+makeWrapper $ghc "bin/ghc"         "-package-conf"  $packages_db
+makeWrapper $ghc "bin/ghci"        "-package-conf"  $packages_db
+makeWrapper $ghc "bin/runghc"      "-package-conf"  $packages_db
+makeWrapper $ghc "bin/runhaskell"  "-package-conf"  $packages_db
+makeWrapper $ghc "bin/ghc-pkg"     "--global-conf"  $packages_db
+
+# todo: link all other binaries of ghc

pkgs/development/compilers/ghc-wrapper/default.nix

@@ -0,0 +1,7 @@
+{stdenv, ghc, libraries}:
+
+stdenv.mkDerivation {
+  name = ghc.name;
+  inherit ghc libraries;
+  builder = ./builder.sh;
+}