diff options
Diffstat (limited to 'NOTES-DJGPP.md')
| -rw-r--r-- | NOTES-DJGPP.md | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/NOTES-DJGPP.md b/NOTES-DJGPP.md new file mode 100644 index 000000000000..0b23c48370b3 --- /dev/null +++ b/NOTES-DJGPP.md @@ -0,0 +1,46 @@ +Notes for the DOS platform with DJGPP +===================================== + + OpenSSL has been ported to DJGPP, a Unix look-alike 32-bit run-time + environment for 16-bit 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 the PERL module `Text::Template` also be + installed (see [NOTES-PERL.md](NOTES-PERL.md)). + + All of these can be obtained from the usual DJGPP mirror sites or + directly at <http://www.delorie.com/pub/djgpp>. For help on which + files to download, see the DJGPP "ZIP PICKER" page at + <http://www.delorie.com/djgpp/zip-picker.html>. You also need to have + the WATT-32 networking package installed before you try to compile + OpenSSL. This can be obtained from <http://www.watt-32.net/>. + The Makefile assumes that the WATT-32 code is in the directory + specified by the environment variable WATT_ROOT. If you have watt-32 + in directory `watt32` under your main DJGPP directory, specify + `WATT_ROOT="/dev/env/DJDIR/watt32"`. + + To compile OpenSSL, start your BASH shell, then configure for DJGPP by + running `./Configure` with appropriate arguments: + + ./Configure no-threads --prefix=/dev/env/DJDIR DJGPP + + And finally fire up `make`. 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. + + RUN-TIME CAVEAT LECTOR + -------------- + + Quoting FAQ: + + "Cryptographic software needs a source of unpredictable data to work + correctly. Many open source operating systems provide a "randomness + device" (`/dev/urandom` or `/dev/random`) that serves this purpose." + + As of version 0.9.7f DJGPP port checks upon `/dev/urandom$` for a 3rd + party "randomness" DOS driver. One such driver, `NOISE.SYS`, can be + obtained from <http://www.rahul.net/dkaufman/index.html>. |
