adding postgis + script enabling postgis features

Exporting builder.pl because it will be used in NixOS postgresql module

svn path=/nixpkgs/trunk/; revision=21691

pkgs/development/libraries/postgis/default.nix

@@ -0,0 +1,51 @@
+{stdenv, fetchurl, libxml2, postgresql, geos, proj, perl}:
+
+# TODO: the bin commands to have gtk gui
+# compile this optionally ?
+
+# NixOS - usage: services.posgresql.extraPlugins = [ pkgs.postgis ];
+
+stdenv.mkDerivation {
+  name = "postgis";
+
+  src = fetchurl {
+    url = http://postgis.refractions.net/download/postgis-1.5.1.tar.gz;
+    sha256 = "0nymvqqi6pp4nh4dcshzqm76x4sraf119jp7l27c2q1lygm6p6jr";
+  };
+
+  makeFlags = "PERL=${perl}/bin/perl";
+
+  # default both defaul to postgis location !?
+  preConfigure = ''
+    configureFlags="--datadir=$out/share --datarootdir=$out/share --bindir=$out/bin"
+    makeFlags="PERL=${perl}/bin/perl datadir=$out/share pkglibdir=$out/lib bindir=$out/bin"
+
+  #  makeFlags="DESTDIR=$out "
+  '';
+
+  # create a script enabling postgis features
+  postInstall = ''
+    cat >> $out/bin/enable_postgis_for_db << EOF
+    #!/bin/sh
+    set -x
+    t=$out/share/contrib/postgis-1.5
+    for db in "\$@"; do
+      createlang plpgsql \$db
+      for f in postgis spatial_ref_sys; do
+        psql -d \$db -f \$t/\$f.sql
+      done
+    done
+    EOF
+    chmod +x $out/bin/enable_postgis_for_db
+  '';
+
+  buildInputs = [libxml2 postgresql geos proj perl];
+
+  meta = {
+    description = "Geographic Objects for PostgreSQL";
+    homepage = "http://postgis.refractions.net";
+    license = "GPLv2";
+    maintainers = [stdenv.lib.maintainers.marcweber];
+    platforms = stdenv.lib.platforms.linux;
+  };
+}

pkgs/top-level/all-packages.nix

@@ -218,6 +218,7 @@ let
     theAttrSet = arg;
   };
 
+  buildEnvScript = ../build-support/buildenv/builder.pl;
   buildEnv = import ../build-support/buildenv {
     inherit stdenv perl;
   };
@@ -5012,6 +5013,10 @@ let
     inherit fetchurl stdenv;
   };
 
+  postgis = import ../development/libraries/postgis {
+    inherit stdenv fetchurl libxml2 postgresql geos proj perl;
+  };
+
   pth = import ../development/libraries/pth {
     inherit fetchurl stdenv;
   };