path problem in mac

[paulcon]

Describe the bug The path returned on line 36 in system_paths.py using os.path.join is missing the "/" at the beginning of the string: https://github.com/jfowkes/pycutest/blob/master/pycutest/system_paths.py#L36

To Reproduce import pycutest

Information about your installation:

• macOS 12.6.2, Xcode 13.4
• Python 3.8, PyCharm 2022.3.1
• PyCUTEst 1.4
• CUTEst installed with homebrew
• updated .bashrc

[jfowkes]

Thanks for reporting, the fallback path should not be hardcoded like this as this will break on the new ARM macs since they do not use /usr/local/ by default (c.f. #39)

It should be done using:

import subprocess
# extract the homebrew prefix 
homebrew_prefix = subprocess.check_output(['brew', '--prefix']).decode('utf-8')[:-1]

homebrew_path = os.path.join(homebrew_prefix, 'opt', 'cutest', 'lib', 'libcutest.a')

and similarly for all the other homebrew paths starting with /usr/local/ in system_paths.py.