Compiling C++ on various different platforms with as many out of tree
dependencies as we have is volatile at best.
In order to prevent a third party warning from ruining the build for
people who don't care about third party warnings, we remove
warnings-as-errors by default.
They are still enabled by default on CI.
`qmake` is better suited for finding `windeployqt`, since it's in the same
directory as `qmake` on windows.
`qmake` is also better suited for finding the build target
(release/debug) vs third party scripts.
`windeployqt` is being forced to run in `cmd` because the syntax is
different for running executables in powershell, which means
`windeployqt` won't be executed and runtime or package errors will
occur.
With the removal of the windeployqt call the deploy step is no longer
needed for building on Windows, since all previous deploy tasks are now
handle by Qmake.
Described in commit 97e203fd89e7cb54c7ce96ce779b2e8cb6ac1374
The python functions are no longer needed since the python script
doesn't handle file copy any more.
Described in commit 97e203fd89e7cb54c7ce96ce779b2e8cb6ac1374
The linux directory in package_files is included even on Windows install
for simplicity and because it takes up less than 1KB.
Vasily Utkin