When trying to plot signals with ngspice, a message "Can't open viewport for graphics." is shown, when the binary package (pkg ins ngspice_rework) is used. When compiled from ports, it works.
In the Makefile of the port, there is no "USES=X11", or whatever this option is named. This is very likely the issue, as during configuration the existance of X11 headers is tested.
i think the proper thing to do is open a PR against it at https://bugs.freebsd.org/bugzilla/. The port has an active maintainer and this issue should affect freebsd too.
When trying to plot signals with ngspice, a message "Can't open viewport for graphics." is shown, when the binary package (pkg ins ngspice_rework) is used. When compiled from ports, it works.
In the Makefile of the port, there is no "USES=X11", or whatever this option is named. This is very likely the issue, as during configuration the existance of X11 headers is tested.