curl/packages/DOS/README
Gisle Vanem 3611f6a41e build: fix djgpp builds
- Update build instructions in packages/DOS/README

- Extend 'VPATH' with 'vquic' and 'vssh'.

- Allow 'Makefile.dist' to build both 'lib' and 'src'.

- Allow using the Windows hosted djgpp cross compiler to build for MSDOS
  under Windows.

- 'USE_SSL' -> 'USE_OPENSSL'

- Added a 'link_EXE' macro. Etc, etc.

- Linking 'curl.exe' needs '$(CURLX_CFILES)' too.

- Do not pick-up '../lib/djgpp/*.o' files. Recompile locally.

- Generate a gzipped 'tool_hugehelp.c' if 'USE_ZLIB=1'.

- Remove 'djgpp-clean'

- Adapt to new C-ares directory structure

- Use conditional variable assignments

Clarify the 'conditional variable assignment' in 'common.dj'.

Closes https://github.com/curl/curl/pull/6382
2021-01-27 22:08:57 -05:00

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Gisle Vanem made curl build fine on DOS (and MingW) with djgpp, OpenSSL and his
Watt-32 stack.
'make -f Makefile.dist djgpp' in the root curl dir should build it fine.
Or enter 'lib' and do a 'make -f Makefile.dj clean all' to first delete
'lib/curl_config.h' which is possibly from a previous incompatible Windows-build.
Note 1: djgpp 2.04 beta has a sscanf() bug so the URL parsing isn't
done properly. Use djgpp 2.03 until they fix it.
Note 2: Compile Watt-32 (and OpenSSL) with the same version of djgpp.
Otherwise things go wrong because things like FS-extensions and
errnos have been changed between releases.
Note 3: Several 'USE_x' variables in 'common.dj' are on the 'USE_x ?= 0'
form (conditional variable assignment). So one can build like this:
c:\curl\lib> make -f makefile.dj USE_OPENSSL=1 USE_ZLIB=1 clean all