Aspell: Use the `ASPELL_CONF' environment variable instead of patching Aspell.

A related change in `/etc/profile' will be checked in in the NixOS repository.

svn path=/nixpkgs/trunk/; revision=10672

pkgs/development/libraries/aspell/default.nix

@@ -10,15 +10,15 @@ stdenv.mkDerivation {
   
   buildInputs = [perl];
 
-  patches = [
-    # A patch that allows additional dictionary directories to be set
-    # specified through the environment variable
-    # ASPELL_EXTRA_DICT_DIRS (comma-separated).
-    ./dict-path.patch
-  ];
+  # Note: Users should define the `ASPELL_CONF' environment variable to
+  # `dict-dir $HOME/.nix-profile/lib/aspell/' so that they can access
+  # dictionaries installed in their profile.
+  #
+  # We can't use `$out/etc/aspell.conf' for that purpose since Aspell
+  # doesn't expand environment variables such as `$HOME'.
 
   meta = {
-    description = "A spell checker for many languages";
+    description = "GNU Aspell, A spell checker for many languages";
     homepage = http://aspell.net/;
     license = "LGPL";
   };

pkgs/development/libraries/aspell/dict-path.patch

@@ -1,30 +0,0 @@
-diff -rc aspell-0.60.5-orig/common/info.cpp aspell-0.60.5/common/info.cpp
-*** aspell-0.60.5-orig/common/info.cpp	2004-11-10 07:18:45.000000000 +0100
---- aspell-0.60.5/common/info.cpp	2007-10-23 17:30:47.000000000 +0200
-***************
-*** 209,214 ****
---- 209,215 ----
-  					   unsigned int name_size,
-  					   IStream & in)
-    {
-+     char * extra_dict_dirs = getenv("ASPELL_EXTRA_DICT_DIRS");
-      ModuleInfoNode * * prev = &head_;
-      ModuleInfoNode * to_add = new ModuleInfoNode();
-      to_add->c_struct.name = 0;
-***************
-*** 246,251 ****
---- 247,260 ----
-  	goto RETURN_ERROR;
-        }
-      }
-+ 
-+     // Add dictionaries from directories in
-+     // $ASPELL_EXTRA_DICT_DIRS. Maybe this isn't the right place to do
-+     // this, but it works.
-+     if (extra_dict_dirs) {
-+       to_add->c_struct.dict_dirs = &(to_add->dict_dirs);
-+       itemize(extra_dict_dirs, to_add->dict_dirs);
-+     }
-    
-      while (*prev != 0 && 
-  	   (*prev)->c_struct.order_num < to_add->c_struct.order_num)