Add gettextWithExpat function

pkgs/development/libraries/gettext/expat.nix

@@ -0,0 +1,10 @@
+{ runCommand, gettext, expat, makeWrapper }:
+
+runCommand "gettext-expat-${gettext.name}" { buildInputs = [ makeWrapper ]; } ''
+  mkdir $out
+  cp -rf ${gettext}/* $out/
+  chmod a+w $out/bin
+  for p in $out/bin/*; do
+    wrapProgram $p --prefix LD_LIBRARY_PATH : ${expat}/lib
+  done
+''

pkgs/top-level/all-packages.nix

@@ -5790,6 +5790,10 @@ let
   gettext_0_18 = callPackage ../development/libraries/gettext/0.18.nix { };
   gettext_0_19 = callPackage ../development/libraries/gettext { };
 
+  gettextWithExpat = gettext: callPackage ../development/libraries/gettext/expat.nix {
+    inherit gettext;
+  };
+
   gd = callPackage ../development/libraries/gd { };
 
   gdal = callPackage ../development/libraries/gdal { };