We previously tried to build the MXE Docker container on GitHub using
an Action, but that really didn't work well and was a lot more trouble
than it was worth.
So this goes back to an offline build mechanism where I simply create
an updated Docker image when needed and push that to Docker Hub.
But this nearly hides the most interesting change here - we are finally
switching to using 64bit binaries on Windows. It's 2020 and fewer than
1% of our users use 32bit Windows machines. We'll need to expand this
to be able to have both a 32bit and a 64bit version of Subsurface for
Windows. But for now, this solves the problem for 99% of our users.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
These are the instructions that I use at this point.
Removed a long obsolete script - it's been many, many years since that last was
useful (it was still using qmake to try to build Subsurface)
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>