"'$os'" != "HAIKU") { next; }

		if ($0 == "WIN32"       && "'$os'" != "MINGW" &&

		                 "'$os'" != "CYGWIN" && "'$os'" != "MSVC") { next; }

		if ($0 == "MSVC"        && "'$os'" != "MSVC")              { next; }

		if ($0 == "DIRECTMUSIC" && "'$with_direct_music'" == "0")  { next; }

		if ($0 == "LIBTIMIDITY" && "'$libtimidity'" == "" )        { next; }