st: Make patches configurable via config.st.patches.

pkgs/applications/misc/st/default.nix

···
 { stdenv, fetchurl, pkgconfig, writeText, libX11, ncurses, libXext, libXft, fontconfig
-, conf? null}:
+, conf ? null, patches ? []}:
 
 with stdenv.lib;
 
···
     url = "http://dl.suckless.org/st/${name}.tar.gz";
     sha256 = "0avsfc1qp8zvshsfjwwrkvk411jlqy58z225bsdhjkl1qc40qcc5";
   };
+
+  inherit patches;
 
   configFile = optionalString (conf!=null) (writeText "config.def.h" conf);
   preBuild = optionalString (conf!=null) "cp ${configFile} config.def.h";

pkgs/applications/misc/st/wayland.nix

···
 { stdenv, fetchurl, pkgconfig, writeText
 , ncurses, wayland, wld, libxkbcommon, fontconfig, pixman
-, conf? null}:
+, conf ? null, patches ? [] }:
 
 with stdenv.lib;
 
···
     url = "https://github.com/michaelforney/st/archive/${rev}.tar.gz";
     sha256 = "7164da135f02405dba5ae3131dfd896e072df29ac6c0928f3b887beffb8a7d97";
   };
+
+  inherit patches;
 
   configFile = optionalString (conf!=null) (writeText "config.def.h" conf);
   preBuild = optionalString (conf!=null) "cp ${configFile} config.def.h";

pkgs/top-level/all-packages.nix

···
 
   st = callPackage ../applications/misc/st {
     conf = config.st.conf or null;
+    patches = config.st.patches or null;
   };
 
   st-wayland = callPackage ../applications/misc/st/wayland.nix {
     conf = config.st.conf or null;
+    patches = config.st.patches or null;
   };
 
   stag = callPackage ../applications/misc/stag {