Hi,
thanks for the hint.
I work on a solution to build a static sdl2 that works out of the box with the plugin. On linux you could take the engine/source/thirdparty sdl2, if you call the build.sh script before compiling ue4. The changes on the .build.cs are very small.
The windows stuff will take some time, i don´t have much spare time to do this.
tsky