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. --disable-dynamic-x86 disables the dynamic cpu core. Although it's unstable it can greatly improve the speed of dosbox on x86 hosts. --disable-fpu-x86 disables the assembly fpu core. Although relatively new the x86 fpu core has more accuracy then the regular fpu core. 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