1 2 3 INSTALLATION ON THE DOS PLATFORM WITH DJGPP 4 ------------------------------------------- 5 6 OpenSSL has been ported to DJGPP, a Unix look-alike 32-bit run-time 7 environment for 16-bit DOS, but only with long filename support. 8 If you wish to compile on native DOS with 8+3 filenames, you will 9 have to tweak the installation yourself, including renaming files 10 with illegal or duplicate names. 11 12 You should have a full DJGPP environment installed, including the 13 latest versions of DJGPP, GCC, BINUTILS, BASH, etc. This package 14 requires that PERL and the PERL module Text::Template also be 15 installed (see NOTES.PERL). 16 17 All of these can be obtained from the usual DJGPP mirror sites or 18 directly at "http://www.delorie.com/pub/djgpp". For help on which 19 files to download, see the DJGPP "ZIP PICKER" page at 20 "http://www.delorie.com/djgpp/zip-picker.html". You also need to have 21 the WATT-32 networking package installed before you try to compile 22 OpenSSL. This can be obtained from "http://www.watt-32.net/". 23 The Makefile assumes that the WATT-32 code is in the directory 24 specified by the environment variable WATT_ROOT. If you have watt-32 25 in directory "watt32" under your main DJGPP directory, specify 26 WATT_ROOT="/dev/env/DJDIR/watt32". 27 28 To compile OpenSSL, start your BASH shell, then configure for DJGPP by 29 running "./Configure" with appropriate arguments: 30 31 ./Configure no-threads --prefix=/dev/env/DJDIR DJGPP 32 33 And finally fire up "make". You may run out of DPMI selectors when 34 running in a DOS box under Windows. If so, just close the BASH 35 shell, go back to Windows, and restart BASH. Then run "make" again. 36 37 RUN-TIME CAVEAT LECTOR 38 -------------- 39 40 Quoting FAQ: 41 42 "Cryptographic software needs a source of unpredictable data to work 43 correctly. Many open source operating systems provide a "randomness 44 device" (/dev/urandom or /dev/random) that serves this purpose." 45 46 As of version 0.9.7f DJGPP port checks upon /dev/urandom$ for a 3rd 47 party "randomness" DOS driver. One such driver, NOISE.SYS, can be 48 obtained from "http://www.rahul.net/dkaufman/index.html". 49