Can't use Expect in a portfile

[Ryan Schmidt]

On Apr 19, 2018, at 06:49, Rainer Müller wrote:

> On 2018-04-19 13:31, Ryan Schmidt wrote:
>> I can't seem to use Expect in a portfile. [...]
>> 
>> The system has no more ptys.  Ask your system administrator to create more.
> 
> This is probably due to sandboxing. I guess Expect wants to open some
> device such as /dev/ptmx read/write, but is not allowed to do so.

Maybe. The error message is printed when exp_getptymaster() (in pty_unicos.c) returns -1. It's hard to follow exactly what that function does. It has a log of diagnostic log lines (expDiagLog(...)) but I can't figure out how to get Expect to print those diagnostics.

I could try adding some paths to the sandbox whitelist.