I already mentioned here and elsewhere that macOS's clang does not
understand
'-fopenmp', it wants `-Xpreprocessor -fopenmp'` - that's where
clang: error: unsupported option '-fopenmp'
comes from.
So it looks like it can be fixed by modifying places pointed at by
% git grep "fopenmp"
m4/ax_openmp.m4:# Flags to try: -fopenmp (gcc), -mp (SGI & PGI),
m4/ax_openmp.m4:ax_openmp_flags="-fopenmp -openmp -qopenmp -mp -xopenmp
-omp -qsmp=omp none"
src/sage/meson.build: conf_data.set('OPENMP_CFLAGS', '-fopenmp')
src/sage/meson.build: conf_data.set('OPENMP_CXXFLAGS', '-fopenmp')
src/sage/rings/polynomial/weil/weil_polynomials.pyx:##distutils:
extra_compile_args = -fopenmp
(AFAIK, in the latter file this `#distutils` may be removed, as everything
there goes via meson, and not distutils)
On Wed, Oct 29, 2025 at 5:41 PM John H Palmieri <[email protected]>
wrote:
> On OS X 15.6.1 and many homebrew packages, if I take a fresh git clone and
> run `./bootstrap` and `./configure` with the flags
>
> - `--disable-editable` (to avoid
> https://github.com/sagemath/sage/issues/40869)
> - `--with-system-singular=no` (to avoid
> https://github.com/sagemath/sage/issues/40873)
> - `--with-python=python3.13` (so that Sage doesn't use "python3"
> which is Python 3.14 on this machine)
>
> I get one failure:
>
> % ./sage -t src/sage/env.py
> Running doctests with ID 2025-10-29-15-35-11-5ab80ccb.
> Git branch: develop
> Git ref: 10.8.beta8
> Running with
> SAGE_LOCAL='/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local' and
> SAGE_VENV='/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13'
> Using --optional=homebrew,pip,sage,sage_spkg
> Features to be detected:
> 32_bit,4ti2,benzene,bliss,buckygen,conway_polynomials,coxeter3,csdp,cvxopt,cvxopt,database_cremona_ellcurve,database_cremona_mini_ellcurve,database_cubic_hecke,database_ellcurves,database_graphs,database_jones_numfield,database_knotinfo,dot2tex,dvipng,ecm,flatter,fpylll,fricas,gap_package_atlasrep,gap_package_design,gap_package_grape,gap_package_guava,gap_package_hap,gap_package_polenta,gap_package_polycyclic,gap_package_qpa,gap_package_quagroup,gfan,giac,glucose,graphviz,imagemagick,info,ipython,jmol,jupymake,jupyter_sphinx,kenzo,khoca,kissat,latte_int,lrcalc_python,lrslib,mathics,matroid_database,mcqd,meataxe,meson_editable,mpmath,msolve,nauty,networkx,numpy,palp,pandoc,pdf2svg,pdftocairo,pexpect,phitigra,pillow,plantri,polytopes_db,polytopes_db_4d,pplpy,primecountpy,ptyprocess,pycosat,pycryptosat,pynormaliz,pyparsing,python_igraph,regina,requests,rpy2,rubiks,sage.combinat,sage.geometry.polyhedron,sage.graphs,sage.groups,sage.libs.braiding,sage.libs.ecl,sage.libs.flint,sage.libs.gap,sage.libs.giac,sage.libs.homfly,sage.libs.linbox,sage.libs.m4ri,sage.libs.ntl,sage.libs.pari,sage.libs.singular,sage.misc.cython,sage.modular,sage.modules,sage.numerical.mip,sage.plot,sage.rings.complex_double,sage.rings.finite_rings,sage.rings.function_field,sage.rings.number_field,sage.rings.padics,sage.rings.polynomial.pbori,sage.rings.real_double,sage.rings.real_mpfr,sage.sat,sage.schemes,sage.symbolic,sage_numerical_backends_coin,sagemath_doc_html,scipy,singular,sirocco,sloane_database,sphinx,symengine_py,sympy,tdlib,threejs,topcom
> Doctesting 1 file.
> src/bin/sage -t --warn-long 5.0
> --random-seed=131450267099991321955449493880756136666 src/sage/env.py
> **********************************************************************
> File "src/sage/env.py", line 377, in sage.env.cython_aliases
> Failed example:
> cython( # optional -
> sage.misc.cython
> '''
> #distutils: extra_compile_args = OPENMP_CFLAGS
> #distutils: extra_link_args = OPENMP_CFLAGS
> from cython.parallel import prange
>
> cdef int i
> cdef int n = 30
> cdef int sum = 0
>
> for i in prange(n, num_threads=4, nogil=True):
> sum += i
>
> print(sum)
> ''')
> Exception raised:
> Traceback (most recent call last):
> File
> "/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13/lib/python3.13/site-packages/setuptools/_distutils/spawn.py",
> line 87, in spawn
> subprocess.check_call(cmd, env=_inject_macos_ver(env))
> ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> File
> "/opt/homebrew/Cellar/[email protected]/3.13.9_1/Frameworks/Python.framework/Versions/3.13/lib/python3.13/subprocess.py",
> line 419, in check_call
> raise CalledProcessError(retcode, cmd)
> subprocess.CalledProcessError: Command '['/usr/bin/gcc',
> '-fno-strict-overflow', '-Wsign-compare', '-Wunreachable-code',
> '-fno-common', '-dynamic', '-DNDEBUG', '-g', '-O3', '-Wall',
> '-I/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8',
> '-I/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13/lib/python3.13/site-packages',
> '-I/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13/include',
> '-I/opt/homebrew/opt/[email protected]/Frameworks/Python.framework/Versions/3.13/include/python3.13',
> '-c',
> '/var/folders/7c/bz8vl5tx47ndyy8knwrtg1k00000gp/T/sage_vmiv0kq0/spyx_5z6bjhrw/_var_folders_7c_bz8vl5tx47ndyy8knwrtg1k00000gp_T_sage_vmiv0kq0_tmp_h8t_86ki_pyx/_var_folders_7c_bz8vl5tx47ndyy8knwrtg1k00000gp_T_sage_vmiv0kq0_tmp_h8t_86ki_pyx_0.c',
> '-o',
> '/var/folders/7c/bz8vl5tx47ndyy8knwrtg1k00000gp/T/sage_vmiv0kq0/spyx_5z6bjhrw/_var_folders_7c_bz8vl5tx47ndyy8knwrtg1k00000gp_T_sage_vmiv0kq0_tmp_h8t_86ki_pyx/build/temp.macosx-15.0-arm64-cpython-313/var/folders/7c/bz8vl5tx47ndyy8knwrtg1k00000gp/T/sage_vmiv0kq0/spyx_5z6bjhrw/_var_folders_7c_bz8vl5tx47ndyy8knwrtg1k00000gp_T_sage_vmiv0kq0_tmp_h8t_86ki_pyx/_var_folders_7c_bz8vl5tx47ndyy8knwrtg1k00000gp_T_sage_vmiv0kq0_tmp_h8t_86ki_pyx_0.o',
> '-fopenmp', '-w']' returned non-zero exit status 1.
>
> The above exception was the direct cause of the following exception:
>
> Traceback (most recent call last):
> File
> "/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13/lib/python3.13/site-packages/setuptools/_distutils/compilers/C/unix.py",
> line 221, in _compile
> self.spawn(compiler_so + cc_args + [src, '-o', obj] +
> extra_postargs)
>
> ~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> File
> "/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13/lib/python3.13/site-packages/setuptools/_distutils/compilers/C/base.py",
> line 1158, in spawn
> spawn(cmd, dry_run=self.dry_run, **kwargs)
> ~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> File
> "/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13/lib/python3.13/site-packages/setuptools/_distutils/spawn.py",
> line 93, in spawn
> raise DistutilsExecError(
> f"command {_debug(cmd)!r} failed with exit code
> {err.returncode}"
> ) from err
> distutils.errors.DistutilsExecError: command '/usr/bin/gcc' failed
> with exit code 1
>
> During handling of the above exception, another exception occurred:
>
> Traceback (most recent call last):
> File
> "/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13/lib/python3.13/site-packages/sage/misc/cython.py",
> line 461, in cython
> dist.run_command("build")
> ~~~~~~~~~~~~~~~~^^^^^^^^^
> File
> "/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13/lib/python3.13/site-packages/setuptools/dist.py",
> line 1102, in run_command
> super().run_command(command)
> ~~~~~~~~~~~~~~~~~~~^^^^^^^^^
> File
> "/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13/lib/python3.13/site-packages/setuptools/_distutils/dist.py",
> line 1021, in run_command
> cmd_obj.run()
> ~~~~~~~~~~~^^
> File
> "/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13/lib/python3.13/site-packages/setuptools/_distutils/command/build.py",
> line 135, in run
> self.run_command(cmd_name)
> ~~~~~~~~~~~~~~~~^^^^^^^^^^
> File
> "/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13/lib/python3.13/site-packages/setuptools/_distutils/cmd.py",
> line 357, in run_command
> self.distribution.run_command(command)
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
> File
> "/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13/lib/python3.13/site-packages/setuptools/dist.py",
> line 1102, in run_command
> super().run_command(command)
> ~~~~~~~~~~~~~~~~~~~^^^^^^^^^
> File
> "/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13/lib/python3.13/site-packages/setuptools/_distutils/dist.py",
> line 1021, in run_command
> cmd_obj.run()
> ~~~~~~~~~~~^^
> File
> "/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13/lib/python3.13/site-packages/setuptools/command/build_ext.py",
> line 96, in run
> _build_ext.run(self)
> ~~~~~~~~~~~~~~^^^^^^
> File
> "/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13/lib/python3.13/site-packages/setuptools/_distutils/command/build_ext.py",
> line 368, in run
> self.build_extensions()
> ~~~~~~~~~~~~~~~~~~~~~^^
> File
> "/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13/lib/python3.13/site-packages/setuptools/_distutils/command/build_ext.py",
> line 484, in build_extensions
> self._build_extensions_serial()
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
> File
> "/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13/lib/python3.13/site-packages/setuptools/_distutils/command/build_ext.py",
> line 510, in _build_extensions_serial
> self.build_extension(ext)
> ~~~~~~~~~~~~~~~~~~~~^^^^^
> File
> "/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13/lib/python3.13/site-packages/setuptools/command/build_ext.py",
> line 261, in build_extension
> _build_ext.build_extension(self, ext)
> ~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^
> File
> "/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13/lib/python3.13/site-packages/Cython/Distutils/build_ext.py",
> line 136, in build_extension
> super().build_extension(ext)
> ~~~~~~~~~~~~~~~~~~~~~~~^^^^^
> File
> "/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13/lib/python3.13/site-packages/setuptools/_distutils/command/build_ext.py",
> line 565, in build_extension
> objects = self.compiler.compile(
> sources,
> ...<5 lines>...
> depends=ext.depends,
> )
> File
> "/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13/lib/python3.13/site-packages/setuptools/_distutils/compilers/C/base.py",
> line 655, in compile
> self._compile(obj, src, ext, cc_args, extra_postargs, pp_opts)
> ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> File
> "/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13/lib/python3.13/site-packages/setuptools/_distutils/compilers/C/unix.py",
> line 223, in _compile
> raise CompileError(msg)
> distutils.compilers.C.errors.CompileError: command '/usr/bin/gcc'
> failed with exit code 1
>
> During handling of the above exception, another exception occurred:
>
> Traceback (most recent call last):
> File
> "/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13/lib/python3.13/site-packages/sage/doctest/forker.py",
> line 734, in _run
> self.compile_and_execute(example, compiler, test.globs)
> ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> File
> "/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13/lib/python3.13/site-packages/sage/doctest/forker.py",
> line 1158, in compile_and_execute
> exec(compiled, globs)
> ~~~~^^^^^^^^^^^^^^^^^
> File "<doctest sage.env.cython_aliases[5]>", line 1, in <module>
> cython( # optional -
> sage.misc.cython
>
> ~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> '''
> ^^^
> ...<11 lines>...
> print(sum)
> ^^^^^^^^^^
> ''')
> ^^^^
> File "sage/misc/lazy_import.pyx", line 413, in
> sage.misc.lazy_import.LazyImport.__call__
> return self.get_object()(*args, **kwds)
> File
> "/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13/lib/python3.13/site-packages/sage/misc/cython.py",
> line 734, in cython_compile
> return cython_import_all(tmpfile, get_globals(), **kwds)
> File
> "/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13/lib/python3.13/site-packages/sage/misc/cython.py",
> line 620, in cython_import_all
> m = cython_import(filename, **kwds)
> File
> "/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13/lib/python3.13/site-packages/sage/misc/cython.py",
> line 588, in cython_import
> name, build_dir = cython(filename, **kwds)
> ~~~~~~^^^^^^^^^^^^^^^^^^
> File
> "/Users/jpalmier/Sage/TESTING/test/sage-10.8.beta8/local/var/lib/sage/venv-python3.13/lib/python3.13/site-packages/sage/misc/cython.py",
> line 467, in cython
> raise RuntimeError(msg.strip())
> RuntimeError: command '/usr/bin/gcc' failed with exit code 1
> clang: error: unsupported option '-fopenmp'
> **********************************************************************
> 1 item had failures:
> 1 of 7 in sage.env.cython_aliases
> [39 tests, 1 failure, 1.68s wall]
> ----------------------------------------------------------------------
> src/bin/sage -t --warn-long 5.0
> --random-seed=131450267099991321955449493880756136666 src/sage/env.py # 1
> doctest failed
> ----------------------------------------------------------------------
> Total time for all tests: 3.1 seconds
> cpu time: 0.8 seconds
> cumulative wall time: 1.7 seconds
> Features detected for doctesting: sage.misc.cython
>
>
>
>
> On Monday, October 27, 2025 at 4:17:19 PM UTC-7 Volker Braun wrote:
>
>> A bit late since my router died last week, but better late than never ;)
>>
>> We should soon start with a first release candidate.
>>
>> As always, you can get the latest beta version from the "develop" git
>> branch. Alternatively, the self-contained source tarball is at
>> http://www.sagemath.org/download-latest.html
>>
>>
>> aa27703384a (tag: 10.8.beta8, github/develop) Updated SageMath version to
>> 10.8.beta8
>> 7dc22dee03f gh-41104: never append ':' to the end of PKG_CONFIG_PATH in
>> .homebrew-build-env
>> c154c72b562 gh-41103: some python-style for loops in rings/padics
>> a410a3eef62 gh-41102: Hypergeometric Functions
>> 0b0b4476a3c gh-41096: Fix bug with creation of extensions of function
>> fields
>> 33950d6d2df gh-41094: Add some missing docstrings to
>> `multi_polynomial_ring_base.pyx`
>> 79f3de4c840 gh-41093: Update maxima package use flags for Gentoo
>> 23d371a7139 gh-41092: tweak annotations for cachefunc
>> 469417b5229 gh-41089: various small things about len
>> 9de3d3dc1f6 gh-41088: remove _coerce_impl in finite_rings
>> 48f62ff9b61 gh-41087: remove old-style _coerce_impl in abvar/
>> 1a91b4d6ab5 gh-41082: Fix majorization again
>> e206e205a68 gh-41078: Docutils 0.22 compatibility
>> 0b691f2dfaf gh-41076: change the default algorithm to the faster one in
>> {path, cycle}_enumeration
>> b80b48b02f9 gh-41074: relax Python version constraints in pyproject
>> template
>> b8d85197ed6 gh-41071: Fix missing file error with sage_getdoc
>> f5c04cb032b gh-41062: remove deprecations in finite_rings
>> 8c8b1efcaa5 gh-41059: convert some loops in groups to python-style
>> 26c140bb33d gh-41058: remove some deprecated stuff in rings/
>> 87f138886c6 gh-41057: Fix libgap conversion of large Python integers and
>> Sage integers
>> 084181fa7dc gh-41055: require 6 to be a unit in elliptic-curve point
>> addition over non-fields
>> f0a0b98768c gh-41052: Ensure connected graphs in tests
>> 1a30f6a75c8 gh-41051: modernize for loops in modules/
>> 3426712f377 gh-41050: fix deprecation message in banner.py
>> 405b5d06d68 gh-41041: better error message in magma_free when timeout
>> 0d507f4d1a2 gh-41040: refuse to compare two ideals that we don't know how
>> to compare
>> b2b6663da8e gh-41037: Enable save/load to accept Path objects
>> abf9f5a8620 gh-41036: Remove tomli
>> 55baed01485 gh-41034: bump (tex)info to the the latest version, 7.2
>> bf5453f8398 gh-41032: Fix sageinspect for Python 3.14
>> 1056490c4e5 gh-41030: Define a SAGE_CONFIGURE_BOOST environment variable
>> in the build shell
>> 190f165a5df gh-41029: Add debian-forky to Meson CI
>> fc63f845d31 gh-41027: Avoid excessive parallelism for doc/bootstrap
>> 48459892263 gh-41021: Refactor ``atexit.pyx``
>> 7b6f21f6b1f gh-41018: Fix some typos in p-adic code
>> e8239e27c95 gh-41013: make use of the b-file
>> 7228b9aa315 gh-40997: implement the lattice of Baxter permutations
>> be45c1e2c91 gh-40976: Use flint for computing charpoly of rational matrix
>> 3b77cbef5ca gh-40973: Fix libgap(<NumberField>)
>> d788c5adecc gh-40947: Fix finite field GF(p).extension(1, names=tuple)
>> caa5081c94b gh-40934: Add methods related to graph homeomorphisms
>> 54d4ddb132c gh-40919: Make tests pass with GAP 4.15
>> b3899299fa2 gh-40912: cli: Allow importing modules from the current
>> directory when running a command or a file.
>> 971cdc747a7 gh-40892: spkg bumps for Python 3.14
>> d735455e552 gh-40855: Fix singular Z2m ring creation and polynomial
>> comparison
>> 74862ba631a gh-40801: Remove magic `# sage_setup` comments and their
>> handling
>> 4052f24b721 gh-40775: Update curl and cmake
>> 0c1873b2222 gh-40742: Improve shell code formatting in docs, second part
>> 71624ce2b68 gh-40741: Fix-40738: Fix ExteriorAlgebra multiplication to
>> preserve symbolic coefficients
>> 890a64996b4 gh-40734: Avoid mutate Integer.value at a few more places,
>> remove sig_occurred() check in Integer fast_tp_dealloc
>> 9e1f6009a72 gh-40689: remove boost_cropped spkg, add boost to prereqs
>> 31089d4c5d2 gh-40570: Fix fricas doctest pickling
>> 44c09adf9b9 gh-40527: Refactor sage.groups.generic
>> 46b3f791aa7 gh-40265: Migrate from Maxima pexpect interface to ECL
>> interface
>> f766a2895bd gh-41030: Define a SAGE_CONFIGURE_BOOST environment variable
>> in the build shell
>> 9f905404644 (tag: 10.8.beta7) Updated SageMath version to 10.8.beta7
>>
> --
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