- introduce `src/crypto.c` as an umbrella source that does nothing else
than include the selected crypto backend source. Moving this job from
the built-tool to the C preprocessor.
- this allows dropping the various techniques to pick the correct crypto
backend sources in autotools, CMake and other build method. Including
the per-backend `Makefile.<crypto-backend>.inc` makefiles.
- copy a trick from curl and instead of maintaining duplicate source
lists for CMake, convert the GNU Makefile kept for autotools
automatically. Do this in `docs`, `examples` and `src`.
Ref: dfabe8bca2/CMakeLists.txt (L1399-L1413)
Also fixes missing `libssh2_setup.h` from `src/CMakeFiles.txt` after
59666e03f0.
- move `Makefile.inc` from root to `src`.
- reformat `src/Makefile.inc` to list each source in separate lines,
re-align the continuation character and sort the lists alphabetically.
- update `docs/HACKING-CRYPTO` accordingly.
- autotools: update the way we add crypto-backends to `LIBS`.
- delete old CSV headers, indent, and merge two lines in
`docs/Makefile.am` and `src/Makefile.am`.
- add `libssh2.pc` to `.gitignore`, while there.
Closes#941
Notes:
The buildconf script is currently required, because we need to copy a
header around, because it is used both from the library and the examples
sources.
However, having a custom 'buildconf'-like script is not needed if we can
ensure that the header exists by the time it is needed. For that, we can
just append the src/ directory to the headers search path for the
examples.
And then it means we no longer need to generate the same header twice,
so we remove the second one from configure.ac.
Now, we can just call "autoreconf -fi" to generate the autotools files,
instead of relying on the canned sequence in "buildconf", since
autoreconf has now long known what to do at the correct moment (future
versions of autotools, automake, autopoint, autoheader etc... may
require an other ordering, or other intermediate steps, etc...).
Eventually, get rid of buildconf now it is no longer needed. In fact, we
really keep it for legacy, but have it just call autoreconf (and print a
nice user-friendly warning). Don't include it in the release tarballs,
though.
Update doc, gitignore, and travis-CI jobs accordingly.
Credit:
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Sam Voss <sam.voss@rockwellcollins.com>
