Things needed for compilation. SDL The Simple DirectMedia Library available at http://www.libsdl.org Curses (optional) If you want to enable the debugger you need a curses library. ncurses should be installed on just about every unix distro. For win32 get pdcurses at http://pdcurses.sourceforge.net Libpng Needed for the screenshots. (optional) For win32 get libpng from http://www.sourceforge.net/projects/gnuwin32 Zlib Needed by libpng. (optional) For win32 get libz (rename to zlib) from http://www.sourceforge.net/projects/gnuwin32 SDL_Net For modem/ipx support(optional). Get it from http://www.libsdl.org SDL_Sound For compressed audio on diskimages. (optional) ALSA_Headers (optional) ???????? for Alsa support under linux If you want compile from the CVS under a unix system, you'll also need automake (>=1.6), autoconf(>=2.50). Should be available at http://www.gnu.org For building on unix systems. If you are building from the cvs run ./autogen.sh first before doing the following. 1. ./configure 2. make In step 1 you could add the following switches: --enable-debug enables the internal debugger. --enable-debug=heavy enables even more debug options. Dosbox should then be run from a xterm and when the sdl- window is active press pause to enter the debugger. --disable-fpu Will disable the emulated fpu. Although the fpu emulation code isn't finished and isn't entirely accurate it's advised to leave it on. --enable-core-inline enables some memory increasing inlines. This greatly increases compiletime for maybe a increase in speed. Check the src subdir for the binary. Build instructions for VC++6 Don't use VC++ 6:it creates faulty code in core_normal.cpp