Cross compiling for Windows with MXE #767
Merged
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This allows for cross-compilation on a Linux machine for Windows with MXE which uses the MinGW-compiler (gcc).
I have tested this in a Docker-environment. See this Dockerfile for setup instructions. The corresponding docker image is not published yet. See also this Jenkins job which utilizes this Docker infrastructure.
CMake requirement is bumped to 3.1 because of a modernized usage of the Qt4 CMake module. Also this CMake version allows for improved handling of library linking dependencies which I will address in another PR.