Change CI actions to a matrix with cmake options, for both release and
debug builds, with ENABLE_LINK=OFF and ENABLE_SDL=ON configurations, for
all 3 runners.
Also add both g++ and clang++ to the matrix for the Ubuntu runner to
test on clang.
Disable the macOS workflow for now because brew is failing to install
dependencies.
Signed-off-by: Rafael Kitover <rkitover@gmail.com>
* Remove the custom handling for pre-3.1.4 builds on Windows since
both the mingw and msvc builds now use 3.2.
* Remove wxDPIChangedEvent handling, since this triggers a resize,
which has the same effect.
* Implement main/WinMain ourselves, rather than relying on wxWidgets
macros. This allows us to initialize the console earlier in the
process.
* Add an explicit dependency on the manifest file to trigger a link
when it is modified.