Steps To Reproduce

timeout is not a valid shell command in OS X, so the test

        AC_MSG_CHECKING([whether factor() bug 2469 of pari 2.15.3 is fixed])
        result=`echo "f=factor(2^2203-1); print(\"ok\")" | timeout 1 $GP -qf`

introduced in #35302 fails even with a recent version of pari installed via homebrew.

Expected Behavior

Sage should be able to use homebrew's version of pari.

Actual Behavior

config.log says

configure:24946: checking whether factor() bug 2469 of pari 2.15.3 is fixed
configure:24953: result: no; cannot use system pari/GP with known bug
...
configure:25276: no suitable system package found for SPKG pari

If I remove timeout from that line, then the system `pari is used, Sage builds correctly, and all tests pass. Also the shell command

echo "f=factor(2^2203-1); print(\"ok\")" | gp -qf 

executes without error and finishes very quickly.

Additional Information

No response

Environment

- **OS**: OS X 14.1
- **Sage Version**: 10.2.rc3

Checklist

• I have searched the existing issues for a bug report that matches the one I want to file, without success.
• I have read the documentation and troubleshoot guide