Changelog: https://gitlab.com/m2crypto/m2crypto/-/tags
The cmd will be None after introduced the commit [1] in the new
version and result the below do_compile error.
DEBUG: Executing shell function do_compile
* Getting build dependencies for wheel...
[snip]
TypeError: expected str, bytes or os.PathLike object, not NoneType
ERROR Backend subprocess exited when trying to invoke get_requires_for_build_wheel
So make the cmd available to fix the above issue.
[1] 4d7880b019
Signed-off-by: Mingli Yu <mingli.yu@windriver.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
