failed building wheels

[alanmaehara]

Hi!

I've got an error when running pip3 install bitermplus on MacOS (intel-based, Ventura), using python 3.10.8 in a separate venv (not anaconda):

Building wheels for collected packages: bitermplus
  Building wheel for bitermplus (pyproject.toml) ... error
  error: subprocess-exited-with-error

  × Building wheel for bitermplus (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [34 lines of output]
      Error in sitecustomize; set PYTHONVERBOSE for traceback:
      AssertionError:
      running bdist_wheel
      running build
      running build_py
      creating build
      creating build/lib.macosx-12-x86_64-cpython-310
      creating build/lib.macosx-12-x86_64-cpython-310/bitermplus
      copying src/bitermplus/__init__.py -> build/lib.macosx-12-x86_64-cpython-310/bitermplus
      copying src/bitermplus/_util.py -> build/lib.macosx-12-x86_64-cpython-310/bitermplus
      running egg_info
      writing src/bitermplus.egg-info/PKG-INFO
      writing dependency_links to src/bitermplus.egg-info/dependency_links.txt
      writing requirements to src/bitermplus.egg-info/requires.txt
      writing top-level names to src/bitermplus.egg-info/top_level.txt
      reading manifest file 'src/bitermplus.egg-info/SOURCES.txt'
      reading manifest template 'MANIFEST.in'
      adding license file 'LICENSE'
      writing manifest file 'src/bitermplus.egg-info/SOURCES.txt'
      copying src/bitermplus/_btm.c -> build/lib.macosx-12-x86_64-cpython-310/bitermplus
      copying src/bitermplus/_btm.pyx -> build/lib.macosx-12-x86_64-cpython-310/bitermplus
      copying src/bitermplus/_metrics.c -> build/lib.macosx-12-x86_64-cpython-310/bitermplus
      copying src/bitermplus/_metrics.pyx -> build/lib.macosx-12-x86_64-cpython-310/bitermplus
      running build_ext
      building 'bitermplus._btm' extension
      creating build/temp.macosx-12-x86_64-cpython-310
      creating build/temp.macosx-12-x86_64-cpython-310/src
      creating build/temp.macosx-12-x86_64-cpython-310/src/bitermplus
      clang -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk -I/usr/local/opt/python@3.10/Frameworks/Python.framework/Versions/3.10/include/python3.10 -c src/bitermplus/_btm.c -o build/temp.macosx-12-x86_64-cpython-310/src/bitermplus/_btm.o -Xpreprocessor -fopenmp
      src/bitermplus/_btm.c:772:10: fatal error: 'omp.h' file not found
      #include <omp.h>
               ^~~~~~~
      1 error generated.
      error: command '/usr/bin/clang' failed with exit code 1
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for bitermplus
Failed to build bitermplus
ERROR: Could not build wheels for bitermplus, which is required to install pyproject.toml-based projects

Could this error be related to #29? I've tested on a PC and it worked though.

[maximtrp]

Hi! Thank you for reporting this.
Have you followed the installation steps (for macOS) described in README?

[alanmaehara]

issue solved. Solution was setting the following environment variables after brew install libomp:

export LDFLAGS="-L/usr/local/opt/libomp/lib"
export CPPFLAGS="-I/usr/local/opt/libomp/include"