[3.0] contrib: fix CMake usage of forced static libraries
All commits are backports. We force winpthreads to the static library as well.
The Windows build script is also updated to use (almost) clean backports.
Edited by Steve Lhomme
All commits are backports. We force winpthreads to the static library as well.
The Windows build script is also updated to use (almost) clean backports.
VideoLAN code repository instance