cdo @2.2.0: configure: error: no suitable Python interpreter found

[ryandesign (Ryan Carsten Schmidt)]

cdo @2.2.0 fails to build on Mojave and earlier:

​https://build.macports.org/builders/ports-10.14_x86_64-builder/builds/165316/steps/install-port/logs/stdio

checking for a Python interpreter with version >= 3.6... none
configure: error: no suitable Python interpreter found

Apple did not start including python 3 in macOS until Catalina.

On older systems (or unconditionally if you prefer) you can use the MacPorts python311 port.

You will need to inform the build of the absolute path of whichever python you want it to use.

[remkos (Remko Scharroo)]

Ah ... that must be something new. Thanks for the reporting.

I checked the code and found that python is only used for testing. So it was easy enough the add it as a depend_build. As pointed out, I also now added the full path as an environment variable. It tested out fully on my side. Granted, this is on Ventura.

En passant, I also changed the test.dir to the default, since it changed in the upstream release.

See PR ​https://github.com/macports/macports-ports/pull/18511

[Remko Scharroo <remko.scharroo@…>]

In 76431c41590c5e196f7e01fb95354ddc2bfd6f46/macports-ports (master):

cdo: add python build dependency for test

Closes: #67364