Several ports pkgs need clang-9.0.1 to build properly but cc on 11.3-stable is clang-8.0.1.
Either the ports pkgs (e.g. gdal, ffmpeg, ...) should be changed to explicitly
require clang90 or 11.3 base system should be upgraded to use clang-9.0.1 by
It's not possible to change the compiler in 11.3 as it is already released. If ports are broken on 11.3 due to Clang 8.0.1 they need to depend on the Clang port/package.
Thank you for your report. For any ports that fail to build on any supported FreeBSD versions (11.3 for example), please create reports for each individual port, if they haven't been reported already (search first please)
Each port report should be prefixed with "$category/$portname" of the port in question