Make test bundles the default. Drop non-bundle build mode.
Also do all the optimizations and tidy-ups this allows, simpler builds,
less bundle exceptions, streamlined build mechanics.
Also rework the init/deinit macro magic for unit tests. The new method
allows using unique init/deinit function names, and calling them with
arguments. This is in turn makes it possible to reduce the use of global
variables.
Note this drop existing build options `-DCURL_TEST_BUNDLES=` from cmake
and `--enable-test-bundles` / `--disable-test-bundles` from autotools.
Also:
- rename test entry functions to have unique names: `test_<testname>`
This removes the last exception that was handled in the generator.
- fix `make dist` to not miss test sources with test bundles enabled.
- sync and merge `tests/mk-bundle.pl` into `scripts/mk-unity.pl`.
- mk-unity.pl: add `--embed` option and use it when `CURL_CLANG_TIDY=ON`
to ensure that `clang-tidy` does not miss external test C sources.
(because `clang-tidy` ignores code that's #included.)
- tests/unit: drop no-op setup/stop functions.
- tests: reduce symbol scopes, global macros, other fixes and tidy-ups.
- tool1621: fix to run, also fix it to pass.
- sockfilt: fix Windows compiler warning in certain unity include order,
by explicitly including `warnless.h`.
Follow-up to 6897aeb105#17468Closes#17590
- autotools: add support for custom prefix.
Usage: `--enable-versioned-symbols=MYPREFIX_`
Catching up with cmake.
- add default versioned prefix for Rustls builds.
- delete `HIDDEN` entry from version script `lib/libcurl.vers.in`.
It referred to symbol names that never existed in libcurl.
- cmake: use `lib/libcurl.vers.in` as a template instead of generating
it from scratch. Adapt `./configure` accordingly, and add comments
to keep hard-wired soname in sync with `lib/Makefile.soname`.
- autotools: delete Schannel and Secure Transport version prefixes.
Windows and macOS don't support the versioned symbols option.
Follow-up to 7b14449790#14378Closes#14818
- they are mostly pointless in all major jurisdictions
- many big corporations and projects already don't use them
- saves us from pointless churn
- git keeps history for us
- the year range is kept in COPYING
checksrc is updated to allow non-year using copyright statements
Closes#10205
