Needed to fix lang/freehdl due to the upcoming libcxx update and while a workaround is trivial, I was wondering if it was time to part ways with this port. It's dead upstream for many years and the tarballs are no longer available. This would seem a decent, actively developed replacement with occasional releases if anyone is interested.
https://github.com/ghdl/ghdl It seems to support a strict superset of what freehdl can ostensibly do. Description: FreeHDL is a compiler/simulator suite for the hardware description language VHDL. VHDL'93 as well as VHDL'87 standards are supported. FreeHDL translates the original VHDL source FILEs into C++. Then, the C++ source can be compiled and linked to the kernel to build the simulation program. Starting the generated executable will simulate the corresponding VHDL model. The actual build process to generate the simulator from the VHDL source is a complex process which is handled by the gvhdl script. Maintainer: The OpenBSD ports mailing-list <ports@openbsd.org> WWW: http://www.freehdl.seul.org/
