ISC DHCP: Add a proper wrapper for dhclient-script' so that it finds hostname'

and friends; add a patch so that "make install" doesn't try to
"mkdir /var/run"; add `meta' attribute.

svn path=/nixpkgs/trunk/; revision=11123

pkgs/tools/networking/dhcp/default.nix

@@ -1,4 +1,5 @@
-{stdenv, fetchurl, groff, nettools, coreutils, iputils, gnused, bash}:
+{ stdenv, fetchurl, groff, nettools, coreutils, iputils, gnused,
+  bash, makeWrapper }:
 
 stdenv.mkDerivation {
   name = "dhcp-3.0.6";
@@ -7,7 +8,21 @@ stdenv.mkDerivation {
     url = http://ftp.isc.org/isc/dhcp/dhcp-3.0.6.tar.gz;
     sha256 = "0k8gy3ab9kzs4qcc9apgnxi982lhggha41fkw9w1bmvmz7mv0xwz";
   };
-  buildInputs = [groff];
-  inherit nettools coreutils iputils gnused bash;
-  patches = [./resolv-without-domain.patch];
+  buildInputs = [ groff nettools makeWrapper ];
+#  inherit nettools coreutils iputils gnused bash;
+  patches = [ ./resolv-without-domain.patch ./no-mkdir-var-run.patch ];
+
+  postInstall = ''
+    wrapProgram "$out/sbin/dhclient-script" --prefix PATH : \
+      "${nettools}/bin:${nettools}/sbin"
+  '';
+
+  meta = {
+    description = ''ISC's Dynamic Host Configuration Protocol (DHCP)
+                    distribution provides a freely redistributable reference
+		    implementation of all aspects of DHCP, through a suite
+		    of DHCP tools: server, client, and relay agent.'';
+    homepage = http://www.isc.org/products/DHCP/;
+    license = "http://www.isc.org/sw/dhcp/dhcp-copyright.php";
+  };
 }