mangohud: hardcode libGL & libX11

pkgs/tools/graphics/mangohud/default.nix

···
   gnused,
   xdg-utils,
   dbus,
+  libGL,
+  libX11,
   hwdata,
   mangohud32,
   addDriverRunpath,
···
   ninja,
   pkg-config,
   unzip,
-  libX11,
   wayland,
   libXNVCtrl,
   nlohmann_json,
···
       ];
 
       libdbus = dbus.lib;
+      libGL = libGL;
+      libX11 = libX11;
       inherit hwdata;
     })
   ];

pkgs/tools/graphics/mangohud/hardcode-dependencies.patch

···
          SPDLOG_ERROR("Could not load libdbus-1.so.3");
          return false;
      }
+diff --git a/src/loaders/loader_glx.cpp b/src/loaders/loader_glx.cpp
+index aa453b8..0f6479d 100644
+--- a/src/loaders/loader_glx.cpp
++++ b/src/loaders/loader_glx.cpp
+@@ -23,7 +23,7 @@ bool glx_loader::Load() {
+   handle = real_dlopen("glxtrace.so", RTLD_LAZY);
+ #endif
+   if (!handle)
+-    handle = real_dlopen("libGL.so.1", RTLD_LAZY);
++    handle = real_dlopen("@libGL@/lib/libGL.so.1", RTLD_LAZY);
+   if (!handle) {
+     SPDLOG_ERROR("Failed to open " MANGOHUD_ARCH " libGL.so.1: {}", dlerror());
+     return false;
+diff --git a/src/loaders/loader_x11.cpp b/src/loaders/loader_x11.cpp
+index 214fd50..2f08857 100644
+--- a/src/loaders/loader_x11.cpp
++++ b/src/loaders/loader_x11.cpp
+@@ -110,6 +110,6 @@ static std::shared_ptr<libx11_loader> loader;
+ std::shared_ptr<libx11_loader> get_libx11()
+ {
+     if (!loader)
+-        loader = std::make_shared<libx11_loader>("libX11.so.6");
++        loader = std::make_shared<libx11_loader>("@libX11@/lib/libX11.so.6");
+     return loader;
+ }
 diff --git a/src/logging.cpp b/src/logging.cpp
-index ca986d4..c4d99ea 100644
+index 4ef7023..e24f6da 100644
 --- a/src/logging.cpp
 +++ b/src/logging.cpp
 @@ -28,8 +28,12 @@ string exec(string command) {