Hi John,

Yes, here is what I get.

This is on Apple Silicon Macs with Homebrew up to date (make and make pytest
 and  make ptestlong).

On macOS 12.5.1 (Monterey) with Xcode 13.4.1:  no problems.
On macOS 12.6 (Monterey) with Xcode 13.4.1:  make ptestlong gives
    ld: warning: -undefined dynamic_lookup may not work with chained fixups
62 times.
On macOS 12.6 (Monterey) with Xcode 14.0:  make ptestlong gives
    ld: warning: -undefined dynamic_lookup may not work with chained fixups
62 times.
Could it be related to the macOS update rather than the Xcode one?

On macOS 11.7 (Big Sur) with Xcode 13.2.1:  make ptestlong gives the usual
----------------------------------------------------------------------
sage -t --long --warn-long 50.1
--random-seed=318245788045791700970939156526720975873
src/sage/matrix/matrix_gf2e_dense.pyx  # 1 doctest failed
----------------------------------------------------------------------
(see https://trac.sagemath.org/ticket/33212).

Guillermo

On Wed, 14 Sept 2022 at 00:03, John H Palmieri <jhpalmier...@gmail.com>
wrote:

> I just upgraded to OS X 12.6, with an accompanying change to Xcode. I am
> seeing this warning when doctesting:
>
> sage -t --random-seed=76645062578000018559554244400680707390
> src/sage/misc/sagedoc.py
> **********************************************************************
> File "src/sage/misc/sagedoc.py", line 666, in sage.misc.sagedoc.format
> Failed example:
>     cython('\n'.join(cython_code))                                    #
> optional - sage.misc.cython
> Expected nothing
> Got:
>     ld: warning: -undefined dynamic_lookup may not work with chained fixups
> **********************************************************************
>
> (It appears for lots of files, so there are lots of doctest failures.)
> Anyone else seeing it?
>

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