https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86535
--- Comment #24 from Curtis Hamilton <clhamilto at gmail dot com> --- Okay, I modified the code and got pass that issue. But have run into another issue that has me stumped. I'm getting the below error: /usr/ports/lang/gcc9/work/gcc-9-20190217/libgo/go/runtime/os_freebsd.go:22:9: error: reference to undefined name 'sysctl' 22 | ret := sysctl(&mib[0], 2, (*byte)(unsafe.Pointer(&out)), &nout, nil, 0) | ^