Add -Werror -Wunused -Wformat to CPPFLAGS
Add -Werror -Wunused -Wformat to CPPFLAGS

MikaelSmith/ffi,mvz/ffi,ffi/ffi,yghannam/ffi,tduehr/ffi,mvz/ffi,ferventcoder/ffi,ffi/ffi,tduehr/ffi,majioa/ffi,sparkchaser/ffi,MikaelSmith/ffi,sparkchaser/ffi,MikaelSmith/ffi,yghannam/ffi,ffi/ffi,majioa/ffi,ferventcoder/ffi,majioa/ffi,MikaelSmith/ffi,yghannam/ffi,sparkchaser/ffi,tduehr/ffi,tduehr/ffi,yghannam/ffi,ferventcoder/ffi,mvz/ffi,mvz/ffi,yghannam/ffi,sparkchaser/ffi,majioa/ffi,ferventcoder/ffi