This build error has re-appeared on Windows when building gcs. It was fixed for about a month but it is back now. I just pulled the latest next branch today.
Suggestions?
mingw32-make[4]: *** No rule to make target 'C:/msys64/mingw64/bin/osgPlugins-3.5.3/mingw_osgdb_earth.dll', needed by 'C:/msys64/home/Jeff/librepilot/build/librepilot-gcs_release/lib/librepilot-gcs/osg/osgPlugins-3.5.3/mingw_osgdb_earth.dll'. Stop.