luaPackages.enet: init at 1.2-1

pkgs/development/lua-modules/generated-packages.nix

@@ -675,6 +675,39 @@ final: prev: {
     }
   ) { };
 
+  enet = callPackage (
+    {
+      buildLuarocksPackage,
+      fetchFromGitHub,
+      fetchurl,
+      luaOlder,
+    }:
+    buildLuarocksPackage {
+      pname = "enet";
+      version = "1.2-1";
+      knownRockspec =
+        (fetchurl {
+          url = "mirror://luarocks/enet-1.2-1.rockspec";
+          sha256 = "0jf0qxf3lsrmc1dww7b7i6srqp2cy8caqv9f1rbva7f6rnppxzra";
+        }).outPath;
+      src = fetchFromGitHub {
+        owner = "leafo";
+        repo = "lua-enet";
+        tag = "v1.2";
+        hash = "sha256-GomfJAPbR+y469LuaNPrkab0Wd3xAsAhT4uqbDo8BUA=";
+      };
+
+      disabled = luaOlder "5.1";
+
+      meta = {
+        homepage = "http://leafo.net/lua-enet";
+        description = "A library for doing network communication in Lua";
+        maintainers = with lib.maintainers; [ ulysseszhan ];
+        license.fullName = "MIT";
+      };
+    }
+  ) { };
+
   fennel = callPackage (
     {
       buildLuarocksPackage,

pkgs/development/lua-modules/overrides.nix

@@ -10,6 +10,7 @@
   coreutils,
   curl,
   dbus,
+  enet,
   expat,
   fd,
   fetchFromGitHub,
@@ -147,6 +148,19 @@ in
       '';
   });
 
+  enet = prev.enet.overrideAttrs (old: {
+    postPatch = ''
+      # luaL_checkint is removed in Lua 5.3, and luaL_register is removed in Lua 5.4
+      sed -i '/#include "lauxlib.h"/a\
+      #if LUA_VERSION_NUM >= 502\
+        #define luaL_checkint(L,n) ((int)luaL_checkinteger(L, (n)))\
+        #define luaL_register(L,n,f) ((n) ? luaL_newlib(L,f) : luaL_setfuncs(L,f,0))\
+      #endif
+      ' enet.c
+    '';
+    buildInputs = old.buildInputs ++ [ enet ];
+  });
+
   fzf-lua = prev.fzf-lua.overrideAttrs {
     # FIXME: https://github.com/NixOS/nixpkgs/issues/431458
     # fzf-lua throws `address already in use` on darwin