Error building uefi-edk2-bhyve (Shared object "libstdc++.so.6" not found, required by "VfrCompile")

Hi, I ran a "synth upgrade-system" and got a failure in sysutils/uefi-edk2-bhyve - apparently it can't find libstdc++.so.6 when running VfrCompile: "VfrCompile" -l -n --string-db

Problem reports for virtualizat...@freebsd.org that need special attention

To view an individual PR, use: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=(Bug Id). The following is a listing of current problems submitted by FreeBSD users, which need special attention. These represent problem reports covering all versions including experimental development code and