Need unistd.h header file

[stevefalco]

I am building on Fedora 40, and get compile errors from missing definitions.

Adding the unistd.h header file to emu/joy.c corrects this error.

[larsbrinkhoff]

@stevefalco, would you mind testing "newemu" as well and see whether it needs any updates for Fedora 40?

[stevefalco]

I tried building newemu and it had no compilation errors. But I'm not sure how to run it. If you have specific instructions as to how to test, I'll be happy to do that. It appears to need a directory "t" containing a bunch of files, as well as a few in /tmp.

Just running the executable, I get:

$ ./pdp6
can't open file <t/systemdis.dtr>
can't open file <t/its138.dtr>
can't open file <t/music.dtr>
couldn't open file t/ddt.d16k.oct
error: Connection refused
can't open display
can't open /tmp/tty
error: getaddrinfo: Invalid argument

[stevefalco]

I did manually start panel/panel6 then newemu/pdp6. It connected and I was able to turn on the power. I got some blinkenlights on the simulated panel.

[larsbrinkhoff]

Thanks! Just compiling it was the test I was after, so that's fine.

[larsbrinkhoff]

Ping @aap.