gnome2.ORBit2: fix the build against `gcc-14`

Without the change the build fails as
https://hydra.nixos.org/build/282732612:

configure: error:
Linking is badly borked on your system. Please ensure your library path is correct
Check config.log for details - check near the end of the log above 'failed program was'

It happens because `gcc-14` defaults to `-Werror=implicit-int`. There is
no easy way to jst regenerate `./configure` as it is not compatible with
`automake-1.13` or above.

Let' flip the `-Werror=` switches back before `gnome2.ORBit2` gets
removed from `nixpkgs`.

Closes: https://github.com/NixOS/nixpkgs/issues/367694

pkgs/desktops/gnome-2/platform/ORBit2/default.nix

···
     "dev"
   ];
 
+  env.NIX_CFLAGS_COMPILE = toString (
+    lib.optionals (stdenv.cc.isGNU && (lib.versionAtLeast (lib.getVersion stdenv.cc.cc) "14")) [
+      # the ./configure script is not compatible with gcc-14, not easy to
+      # regenerate without porting: https://github.com/NixOS/nixpkgs/issues/367694
+      "-Wno-error=implicit-int"
+      "-Wno-error=incompatible-pointer-types"
+    ]
+  );
+
   configureFlags = lib.optionals (stdenv.buildPlatform != stdenv.hostPlatform) [
     "--with-idl-compiler=${lib.getExe' buildPackages.gnome2.ORBit2 "orbit-idl-2"}"
     # https://github.com/void-linux/void-packages/blob/e5856e02aa6ef7e4f2725afbff2915f89d39024b/srcpkgs/ORBit2/template#L17-L35