I've done some initial work on a cmake-based build system. So far it does build + install vba-m on a linux system with asm-hq-filters and a fallback to the c-implementations if nasm is not available. Next on my todo list is adding the qt-gui to the build.
Cmake is a really cool build environment with an easy to use syntax. As it's multi-platform, the developers wouldn't have to deal with separate build files for Linux, Windows, MacOS, but just the affected CMakeLists.txt.