QB64 Portable Version / Pure Console /SDL

Here my idea for specifying which library to use.

Add the command line option -lib which can be omitted. Options are:

-lib none (or -lib ansi)

Use only ANSI C++. Pure text IO with no ability to clear the screen or control cursor position etc.

Advantages: Can be used in an Emacs buffer, portable to all systems with a C++ compiler, can be used over TELNET/SSH, can be used as a CGI daemon, smaller Exe size, allows piping, redirecting.

-lib curses (or -lib conio)

Use the Curses library (or conio library) for text IO with LOCATE, CLS, and other cursor control functions. Still portable to Linux, Windows as well as whatever else curses (or conio if you decide to use that instead) runs on.

Advantages: Can be used over TELNET/SSH, can be used as a CGI daemon, smaller Exe size, allows piping redirecting.

-lib sdl (default)

Uses the SDL library to do graphics and text. Still portable to Linux and Windows and whatever else curses runs on.

Advantages: Allows graphics, mouse, and other QBASIC features not provided by the two other options.

We already have lib sdl, and lib none should be pretty easy to make.