INSTALLATION ON THE DOS PLATFORM WITH DJGPP ------------------------------------------- Openssl has been ported to DOS, but only with long filename support. If you wish to compile on native DOS with 8+3 filenames, you will have to tweak the installation yourself, including renaming files with illegal or duplicate names. You should have a full DJGPP environment installed, including the latest versions of DJGPP, GCC, BINUTILS, BASH, etc. This package requires that PERL and BC also be installed. All of these can be obtained from the usual DJGPP mirror sites, such as "ftp://ftp.simtel.net/pub/simtelnet/gnu/djgpp". You also need to have the WATT-32 networking package installed before you try to compile openssl. This can be obtained from "http://www.bgnett.no/~giva/". The Makefile assumes that the WATT-32 code is in directory "watt32" under /dev/env/DJDIR. To compile openssl, start your BASH shell. Then configure for DOS by running "./Configure" with appropriate arguments. The basic syntax for DOS is: ./Configure no-threads --prefix=/dev/env/DJDIR DJGPP You may run out of DPMI selectors when running in a DOS box under Windows. If so, just close the BASH shell, go back to Windows, and restart BASH. Then run "make" again. Building openssl under DJGPP has been tested with DJGPP 2.03, GCC 2.952, GCC 2.953, perl 5.005_02 and perl 5.006_01.