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