keychain: Add missing binaries to PATH

pkgs/tools/misc/keychain/default.nix

@@ -1,4 +1,5 @@
-{ stdenv, fetchurl }:
+{ stdenv, fetchurl, makeWrapper, coreutils, openssh, gnupg
+, procps, gnugrep, gawk, findutils, gnused }:
 
 stdenv.mkDerivation {
   name = "keychain-2.7.1";
@@ -8,13 +9,23 @@ stdenv.mkDerivation {
     sha256 = "14ai6wjwnj09xnl81ar2dlr5kwb8y1k5ck6nc549shpng0zzw1qi";
   };
 
-  phases = "unpackPhase buildPhase";
+  phases = [ "unpackPhase" "buildPhase" ];
 
-  buildPhase =
-    ''
-      mkdir -p $out/bin
-      cp keychain $out/bin
-    '';
+  buildInputs = [ makeWrapper ];
+
+  buildPhase = ''
+    mkdir -p $out/bin
+    cp keychain $out/bin
+    wrapProgram $out/bin/keychain \
+      --prefix PATH ":" "${coreutils}/bin" \
+      --prefix PATH ":" "${openssh}/bin" \
+      --prefix PATH ":" "${gnupg}/bin" \
+      --prefix PATH ":" "${gnugrep}/bin" \
+      --prefix PATH ":" "${gnused}/bin" \
+      --prefix PATH ":" "${findutils}/bin" \
+      --prefix PATH ":" "${gawk}/bin" \
+      --prefix PATH ":" "${procps}/bin"
+  '';
 
   meta = { 
     description = "Keychain management tool";