libmpd: Fix GCC 14 build

https://hydra.nixos.org/build/281958201/nixlog/3

Note that this is also needed by latest clang.

+4
+4
pkgs/by-name/li/libmpd/package.nix
··· 35 35 cp -r doc/html $devdoc/share/devhelp/libmpd/doxygen 36 36 ''; 37 37 38 + # Fix GCC 14 build 39 + # https://hydra.nixos.org/build/281958201/nixlog/3 40 + env.NIX_CFLAGS_COMPILE = "-Wno-error=int-conversion"; 41 + 38 42 meta = with lib; { 39 43 description = "Higher level access to MPD functions"; 40 44 homepage = "https://www.musicpd.org/download/libmpd/";