webrtc-audio-processing: Add MinGW build support
@ndufresne
Submitted by Nicolas Dufresne Assigned to pul..@..op.org
Description
As of now, the webrtc-audio-processing library cannot be build on Windows. As most of our build system is gcc specific, I'll start with adding MinGW support, even though the code is clearly made for MSVC. Patches coming.