https://pastebin.com/gDiMCEpC https://github.com/Shopify/pyoozie/blob/master/Makefile What actually is my_cmd.python.2 and my_cmd.python.3 really do. In these, What actually is happening in these lines? 1. python_version_full := $(wordlist 2,4,$(subst ., ,$(shell python --version 2>&1))) 2. python_version_major := $(word 1,${python_version_full} _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx https://lists.gnu.org/mailman/listinfo/autoconf