problem building eflomal

[joelarso]

@robertostling Hi there, I am relatively new to using text aligners; when trying to build this in a virtual environment I got the following error message:

(eflomal) joseph@MacBook-Pro-von-Joseph eflomal % python -m pip install .
Processing /Users/joseph/eflomal
Installing build dependencies ... done
Getting requirements to build wheel ... done
Preparing metadata (pyproject.toml) ... done
Collecting numpy (from eflomal==1.0.0b2)
Using cached numpy-2.0.2-cp39-cp39-macosx_14_0_arm64.whl.metadata (60 kB)
Collecting Cython (from eflomal==1.0.0b2)
Using cached Cython-3.0.12-py2.py3-none-any.whl.metadata (3.3 kB)
Using cached Cython-3.0.12-py2.py3-none-any.whl (1.2 MB)
Using cached numpy-2.0.2-cp39-cp39-macosx_14_0_arm64.whl (5.3 MB)
Building wheels for collected packages: eflomal
Building wheel for eflomal (pyproject.toml) ... error
error: subprocess-exited-with-error

× Building wheel for eflomal (pyproject.toml) did not run successfully.
│ exit code: 1
╰─> [58 lines of output]
/private/var/folders/vg/htwl94xs4sg97pgy873ldj_00000gn/T/pip-build-env-9aej5z6c/overlay/lib/python3.9/site-packages/setuptools/_distutils/dist.py:270: UserWarning: Unknown distribution option: 'tests_require'
warnings.warn(msg)
/private/var/folders/vg/htwl94xs4sg97pgy873ldj_00000gn/T/pip-build-env-9aej5z6c/overlay/lib/python3.9/site-packages/setuptools/dist.py:330: InformationOnly: Normalizing '1.0.0-beta2' to '1.0.0b2'
self.metadata.version = self._normalize_version(self.metadata.version)
running bdist_wheel
running build
running build_py
cc -Ofast -march=native -Wall --std=gnu99 -Wno-unused-function -g -fopenmp -c eflomal.c
clang: error: unsupported option '-fopenmp'
make: *** [eflomal.o] Error 1
Traceback (most recent call last):
File "/Users/joseph/eflomal/lib/python3.9/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 389, in
main()
File "/Users/joseph/eflomal/lib/python3.9/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 373, in main
json_out["return_val"] = hook(**hook_input["kwargs"])
File "/Users/joseph/eflomal/lib/python3.9/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 280, in build_wheel
return _build_backend().build_wheel(
File "/private/var/folders/vg/htwl94xs4sg97pgy873ldj_00000gn/T/pip-build-env-9aej5z6c/overlay/lib/python3.9/site-packages/setuptools/build_meta.py", line 438, in build_wheel
return _build(['bdist_wheel', '--dist-info-dir', str(metadata_directory)])
File "/private/var/folders/vg/htwl94xs4sg97pgy873ldj_00000gn/T/pip-build-env-9aej5z6c/overlay/lib/python3.9/site-packages/setuptools/build_meta.py", line 426, in _build
return self._build_with_temp_dir(
File "/private/var/folders/vg/htwl94xs4sg97pgy873ldj_00000gn/T/pip-build-env-9aej5z6c/overlay/lib/python3.9/site-packages/setuptools/build_meta.py", line 407, in _build_with_temp_dir
self.run_setup()
File "/private/var/folders/vg/htwl94xs4sg97pgy873ldj_00000gn/T/pip-build-env-9aej5z6c/overlay/lib/python3.9/site-packages/setuptools/build_meta.py", line 320, in run_setup
exec(code, locals())
File "", line 28, in
File "/private/var/folders/vg/htwl94xs4sg97pgy873ldj_00000gn/T/pip-build-env-9aej5z6c/overlay/lib/python3.9/site-packages/setuptools/init.py", line 117, in setup
return distutils.core.setup(**attrs)
File "/private/var/folders/vg/htwl94xs4sg97pgy873ldj_00000gn/T/pip-build-env-9aej5z6c/overlay/lib/python3.9/site-packages/setuptools/_distutils/core.py", line 186, in setup
return run_commands(dist)
File "/private/var/folders/vg/htwl94xs4sg97pgy873ldj_00000gn/T/pip-build-env-9aej5z6c/overlay/lib/python3.9/site-packages/setuptools/_distutils/core.py", line 202, in run_commands
dist.run_commands()
File "/private/var/folders/vg/htwl94xs4sg97pgy873ldj_00000gn/T/pip-build-env-9aej5z6c/overlay/lib/python3.9/site-packages/setuptools/_distutils/dist.py", line 983, in run_commands
self.run_command(cmd)
File "/private/var/folders/vg/htwl94xs4sg97pgy873ldj_00000gn/T/pip-build-env-9aej5z6c/overlay/lib/python3.9/site-packages/setuptools/dist.py", line 999, in run_command
super().run_command(command)
File "/private/var/folders/vg/htwl94xs4sg97pgy873ldj_00000gn/T/pip-build-env-9aej5z6c/overlay/lib/python3.9/site-packages/setuptools/_distutils/dist.py", line 1002, in run_command
cmd_obj.run()
File "/private/var/folders/vg/htwl94xs4sg97pgy873ldj_00000gn/T/pip-build-env-9aej5z6c/overlay/lib/python3.9/site-packages/setuptools/command/bdist_wheel.py", line 379, in run
self.run_command("build")
File "/private/var/folders/vg/htwl94xs4sg97pgy873ldj_00000gn/T/pip-build-env-9aej5z6c/overlay/lib/python3.9/site-packages/setuptools/_distutils/cmd.py", line 339, in run_command
self.distribution.run_command(command)
File "/private/var/folders/vg/htwl94xs4sg97pgy873ldj_00000gn/T/pip-build-env-9aej5z6c/overlay/lib/python3.9/site-packages/setuptools/dist.py", line 999, in run_command
super().run_command(command)
File "/private/var/folders/vg/htwl94xs4sg97pgy873ldj_00000gn/T/pip-build-env-9aej5z6c/overlay/lib/python3.9/site-packages/setuptools/_distutils/dist.py", line 1002, in run_command
cmd_obj.run()
File "/private/var/folders/vg/htwl94xs4sg97pgy873ldj_00000gn/T/pip-build-env-9aej5z6c/overlay/lib/python3.9/site-packages/setuptools/_distutils/command/build.py", line 136, in run
self.run_command(cmd_name)
File "/private/var/folders/vg/htwl94xs4sg97pgy873ldj_00000gn/T/pip-build-env-9aej5z6c/overlay/lib/python3.9/site-packages/setuptools/_distutils/cmd.py", line 339, in run_command
self.distribution.run_command(command)
File "/private/var/folders/vg/htwl94xs4sg97pgy873ldj_00000gn/T/pip-build-env-9aej5z6c/overlay/lib/python3.9/site-packages/setuptools/dist.py", line 999, in run_command
super().run_command(command)
File "/private/var/folders/vg/htwl94xs4sg97pgy873ldj_00000gn/T/pip-build-env-9aej5z6c/overlay/lib/python3.9/site-packages/setuptools/_distutils/dist.py", line 1002, in run_command
cmd_obj.run()
File "", line 14, in run
File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.9/lib/python3.9/subprocess.py", line 373, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command 'make -C src eflomal' returned non-zero exit status 2.
[end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed building wheel for eflomal
Failed to build eflomal
ERROR: Failed to build installable wheels for some pyproject.toml based projects (eflomal)

Do you have any idea why this is?

[robertostling]

Hi Joseph, this seems to be due to your clang compiler not supporting OpenMP in the same way as gcc.

The compiler options are in src/Makefile. You could either change your compiler to gcc, try removing the -fopenmp option from the first line, or try one of the solutions in this thread to use OpenMP with clang:
https://stackoverflow.com/questions/33357029/using-openmp-with-clang

Unfortunately I do not have any mac system to test these solutions, but please get back to me if you find a solution and I can try to integrate that solution to help others in the same situation.