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 BC also be installed. 15 16 All of these can be obtained from the usual DJGPP mirror sites or 17 directly at "http://www.delorie.com/pub/djgpp". For help on which 18 files to download, see the DJGPP "ZIP PICKER" page at 19 "http://www.delorie.com/djgpp/zip-picker.html". You also need to have 20 the WATT-32 networking package installed before you try to compile 21 OpenSSL. This can be obtained from "http://www.bgnett.no/~giva/". 22 The Makefile assumes that the WATT-32 code is in the directory 23 specified by the environment variable WATT_ROOT. If you have watt-32 24 in directory "watt32" under your main DJGPP directory, specify 25 WATT_ROOT="/dev/env/DJDIR/watt32". 26 27 To compile OpenSSL, start your BASH shell, then configure for DJGPP by 28 running "./Configure" with appropriate arguments: 29 30 ./Configure no-threads --prefix=/dev/env/DJDIR DJGPP 31 32 And finally fire up "make". You may run out of DPMI selectors when 33 running in a DOS box under Windows. If so, just close the BASH 34 shell, go back to Windows, and restart BASH. Then run "make" again. 35 36 RUN-TIME CAVEAT LECTOR 37 -------------- 38 39 Quoting FAQ: 40 41 "Cryptographic software needs a source of unpredictable data to work 42 correctly. Many open source operating systems provide a "randomness 43 device" (/dev/urandom or /dev/random) that serves this purpose." 44 45 As of version 0.9.7f DJGPP port checks upon /dev/urandom$ for a 3rd 46 party "randomness" DOS driver. One such driver, NOISE.SYS, can be 47 obtained from "http://www.rahul.net/dkaufman/index.html". 48