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/libraries/haskell/uulib/builder.sh

@@ -1,7 +1,8 @@
 source $stdenv/setup
 
-#manual setup of ghc
-PATH=$ghc/bin:$PATH
+
+#add ghc to search path
+test -n "$ghc" && PATH=$PATH:$ghc/bin
 
 #unpack
 tar xzf "$src" &&
@@ -17,20 +18,31 @@ ghc --make Setup.hs -o setup -package Cabal &&
 #install
 ./setup copy &&
 
-#register package locally (might use wrapper instead of ugly sed)
-echo '[]' > package.conf &&
+# Create package database. If we can find the ghc version we might install the
+# package, like ghc does, in $out/lib/ghc-version/package.conf.
+
+support=$out/nix-support &&
+packages_db=$out/nix-support/package.conf &&
+
+mkdir $support &&
+cp $ghc/lib/ghc-*/package.conf $packages_db &&
+chmod +w $packages_db &&
+#echo '[]' > $packages_db &&
+
+# We save a modified version of a register script. This gives a dependency on
+# ghc, but this should not be a problem as long as $out is a static library.
+
 ./setup register --gen-script &&
-sed "/ghc-pkg/ s|update -|-f package.conf update -|" register.sh > register-local.sh &&
-sh register-local.sh &&
-mv package.conf $out/ &&
+sed '/ghc-pkg/ s|update -|-f "$1" update -|' register.sh > register-pkg.sh &&
+sed '/ghc-pkg/ s|--auto-ghci-libs||' register-pkg.sh > $support/register.sh &&
 
-#add dependencies
-#dependencies contains a FSO per line
-#for ghc     : prefix each FSO with -package-conf
-#for ghc-pkg : prefix each FSO with -f or --package-conf (note the difference with ghc)
-#both        : append with package.conf
-#
-#example: $(sort FSO1/dependencies FSO2/dependencies | uniq | sed 's|^|FSO/|; s|$|/package.conf|')
+# The package and its direct cabal dependencies are registered. This may result
+# in duplicate registrations attempts but hopefully that will not result in
+# errors.
 
-#no dependencies
-touch $out/dependencies
+# uulib has no dependencies on other ghc libraries
+for dep in ; do
+	sh $dep/nix-support/register.sh $packages_db || exit 1
+done &&
+sh register-pkg.sh $packages_db &&
+rm -f $package_db.old

pkgs/development/libraries/haskell/uulib/default.nix

@@ -7,5 +7,6 @@ stdenv.mkDerivation {
     md5 = "0cc9acc6a268e2bc5c8a954e67406e2d";
   };
   builder = ./builder.sh;
+  #buildInputs = [ ghc ];
   inherit ghc;
 }