Issue during go install

[remyleone]

On freebsd with the default go toolchain installed

$ go install -v github.com/mxpv/podsync/cmd/podsync@latest
runtime/cgo
# runtime/cgo
In file included from cgo-gcc-prolog:31:
In file included from /usr/include/string.h:47:
/usr/include/strings.h:69:10: fatal error: 'xlocale/_strings.h' file not found