[Solved] Error: Foreign function not found: X86-DARWIN64::|gethostname|

Mark Klein Asks: Error: Foreign function not found: X86-DARWIN64::|gethostname|
I got the following error when quickloading usocket into Clozure Common Lisp

Code:
Clozure Common Lisp Version 1.12.1 (v1.12.1) DarwinX8664

For more information about CCL, please see http://ccl.clozure.com.

CCL is free software.  It is distributed under the terms of the Apache Licence, Version 2.0.
? (ql:quickload 'usocket)
To load "usocket":
 Load 1 ASDF system:
   usocket
; Loading "usocket"
Read error between positions 66 and 163 in /Users/markklein/quicklisp/dists/quicklisp/software/usocket-0.8.3/backend/openmcl.lisp.
Error: Foreign function not found: X86-DARWIN64::|gethostname|
While executing: CCL::LOAD-EXTERNAL-FUNCTION, in process Listener(4).
Type cmd-. to abort, cmd- for a list of available restarts.
Type :? for other options.

I am using a Macbook Pro with Mac OS 10.14.1 I upgraded today from CCL 1.12-dev to CCL 1.12.1, so maybe that’s what caused the problem.

Any suggestions on how I can fix this?

I tried downloading the Mac App Store version of clozure CL, but that crashed:

Code:
Unhandled exception 10 at 0x7fff67416a1d, context->regs at #x7ffeefbfdc00
Exception occurred while executing foreign code
at objc_msgSend + 29
received signal 10; faulting address: 0x7fff00000018
? for help
[1283] Clozure CL kernel debugger:

A fix for this problem would also probably do the job.

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