build failure c syntax error in complete.c

**1. Please specify the following:**
- OS: [e.g. OS X, Ubuntu, Windows, etc.]: ___. OSX Monterey
- Shell (Bash, PowerShell, Zsh, etc.): ____. zsh

- [x] **I have reviewed the troubleshooting tips described [here]() and they do not solve my problem**

**2. Description**
Please describe the problem you are facing as precisely as possible in this section

BUILD FAILED (OS X 12.0.1 using python-build 20180424)

Inspect or clean up the working tree at /var/folders/d4/049_h4_j2vb21hlkpq8krbgc0000gn/T/python-build.20211231062023.87793
Results logged to /var/folders/d4/049_h4_j2vb21hlkpq8krbgc0000gn/T/python-build.20211231062023.87793.log

Last 10 log lines:
~~~~~~^~~~~~~~~~~~~
complete.c:2193:16: note: place parentheses around the assignment to silence this warning
while (entry = getpwent ())
^
( )
complete.c:2193:16: note: use '==' to turn this assignment into an equality comparison
while (entry = getpwent ())
^
==
3 warnings generated.
Exiting due to failure

Start by reproducing the OS X 12.0.1 build with python-build 20180424 and inspect the reported complete.c diagnostics, especially line 2193. Use the build log in the referenced temporary directory to identify why the compiler warnings cause failure; done means the EB CLI installation completes successfully on the reported environment.

Written by the indexing model from the issue text.