I'm using a Windows 10 PC to build Next. All of the firmware is compiled. But, when the GCS was building everything looked like it was going fine until I ended with this:
mingw32-make[5]: Leaving directory 'C:/msys64/home/Ron/librepilot/build/librepilot-gcs_release/src/libs/qwt/src'
mingw32-make[4]: Leaving directory 'C:/msys64/home/Ron/librepilot/build/librepilot-gcs_release/src/libs/qwt'
cd sdlgamepad/ && ( test -e Makefile || C:/msys64/mingw64/bin/qmake.exe C:/msys64/home/Ron/librepilot/ground/gcs/src/libs/sdlgamepad/sdlgamepad.pro 'CONFIG+=release osg copy_osg silent' 'GCS_BIG_NAME="LibrePilot GCS"' GCS_SMALL_NAME=librepilot-gcs 'ORG_BIG_NAME="LibrePilot"' ORG_SMALL_NAME=librepilot 'WIKI_URL_ROOT="
https://librepilot.atlassian.net/wiki/display/LPDOC/"' 'USAGETRACKER_URL="
https://usagetracker.librepilot.org/"' GCS_LIBRARY_BASENAME= -o Makefile ) && C:/msys64/mingw64/bin/mingw32-make -f Makefile
mingw32-make[4]: Entering directory 'C:/msys64/home/Ron/librepilot/build/librepilot-gcs_release/src/libs/sdlgamepad'
compiling C:/msys64/home/Ron/librepilot/ground/gcs/src/libs/sdlgamepad/sdlgamepad.cpp
C:/msys64/home/Ron/librepilot/ground/gcs/src/libs/sdlgamepad/sdlgamepad.cpp:24:21: fatal error: SDL/SDL.h: No such file or directory
compilation terminated.
Makefile:409: recipe for target 'sdlgamepad.o' failed
mingw32-make[4]: *** [sdlgamepad.o] Error 1
mingw32-make[4]: Leaving directory 'C:/msys64/home/Ron/librepilot/build/librepilot-gcs_release/src/libs/sdlgamepad'
Makefile:391: recipe for target 'sub-sdlgamepad-make_first-ordered' failed
mingw32-make[3]: *** [sub-sdlgamepad-make_first-ordered] Error 2
mingw32-make[3]: Leaving directory 'C:/msys64/home/Ron/librepilot/build/librepilot-gcs_release/src/libs'
Makefile:41: recipe for target 'sub-libs-make_first-ordered' failed
mingw32-make[2]: *** [sub-libs-make_first-ordered] Error 2
mingw32-make[2]: Leaving directory 'C:/msys64/home/Ron/librepilot/build/librepilot-gcs_release/src'
Makefile:40: recipe for target 'sub-src-make_first-ordered' failed
mingw32-make[1]: *** [sub-src-make_first-ordered] Error 2
mingw32-make[1]: Leaving directory 'C:/msys64/home/Ron/librepilot/build/librepilot-gcs_release'
Makefile:269: recipe for target 'gcs' failed
mingw32-make: *** [gcs] Error 2
Any help would be appreciated.