The built-in rules are nice but have you tried doing anything fancy with waf? I wanted to define a rule that would transform an input file into a output file us

The built-in rules are nice but have you tried doing anything fancy with waf? I wanted to define a rule that would transform an input file into a output file using a tool that was built from source at build-time, then use that output file as a dependency for a unit test. After spending a full week mucking around with waf, I gave up. CMake was much easier for me to understand. Sure, the language is hot garbage, but the mental model of how it functions is simpler. I did something similar to the above and it took an afternoon of learning.