tests.cc-wrapper.default: reduce rebuild amount from `429` to `319` (#351768)

    || (stdenv.cc.isGNU && stdenv.hostPlatform.isLinux)

  );

  staticLibc = lib.optionalString (stdenv.hostPlatform.libc == "glibc") "-L ${glibc.static}/lib";

  emulator = stdenv.hostPlatform.emulator buildPackages;

  emulator = lib.optionalString (!stdenv.buildPlatform.canExecute stdenv.hostPlatform) (stdenv.hostPlatform.emulator buildPackages);

  isCxx = stdenv.cc.libcxx != null;

  libcxxStdenvSuffix = lib.optionalString isCxx "-libcxx";

  CC = "PATH= ${lib.getExe' stdenv.cc "${stdenv.cc.targetPrefix}cc"}";