We also never really tested this, because we run make distcheck, which
does another configure with default flags instead of the ones we passed.
Fixes#317.
Having -Werror set by default causes users' builds to fail because
toxcore is not warning-free. Failing on errors is appropriate for the
development phase, e.g. when building it in a CI enviroment, but it
doesn't make much sense to fail builds for users and let them figure out
that they need to pass -DWARNINGS=OFF to make the library build.
Compiling as C++ changes nothing semantically, but ensures that we don't
break C++ compatibility while also retaining C compatibility.
C++ compatibility is useful for tooling and additional diagnostics and
analyses.
We use TRACE=ON (cmake flag) to enable LOG_TRACE. This way, a regular
build can enable DEBUG while not paying the price of TRACE. This is
particularly important for FFI bindings (especially Python), where
invoking callbacks can be an expensive operation.
When cross-compiling to <target> from Linux, cmake might find native Linux
libconfig and decide to build tox-bootstrapd. If the target is Windows, this
will fail, as tox-bootstrapd can't be built for Windows in the first place. If
the target is Linux of some other architecture, then using host native
libconfig will fail too. Thus an option is needed to guard against this.
Enabling this flag will generate and use an LD version script. It
ensures that the dynamic libraries (libtoxcore.so, libtoxav.so) only
export the symbols that are defined in their public API (tox.h and
toxav.h, respectively).
This test is already performed by `make test` later on. We originally
had it in the Travis script to make it fail fast when the format is
wrong, but there is also some value in running all tests despite format
errors.
Fixes#83. There are no more relevant phases that would benefit from the
padding lines proposed.
This removes the global logger (which by the way was deleted when the first tox
was killed, so other toxes would then stop logging). Various bits of the code
now carry a logger or pass it around. It's a bit less transparent now, but now
there is no need to have a global logger, and clients can decide what to log and
where.
