ref: bf5f906a21121a00f6b264c90539392d4a68e3ba
dir: /u/clean.bat/
rmdir /s /q debug rmdir /s /q release rmdir /s /q debug_gl rmdir /s /q release_gl rmdir /s /q gas2masm\debug rmdir /s /q gas2masm\release del gas2masm\gas2masm.opt del gas2masm\gas2masm.plg del gas2masm\gas2masm.ncb del gas2masm\gas2masm.stt del WinQuake.opt del WinQuake.plg del WinQuake.ncb del WinQuake.stt