Snippets for libxslt 1.1.45 from FreeBSD 150arm64

Sourced from https://pkg-status.freebsd.org/ampere5/data/latest-per-pkg/libxslt/1.1.45/150arm64-default.log.

• /usr/include/sys/timeb.h:41:2: warning: "this file includes <sys/timeb.h> which is deprecated" [-W#warnings]
     41 | #warning "this file includes <sys/timeb.h> which is deprecated"
        |  ^