GNU Make is the original build system and, strange modern outliers asside, is mostly used (and useful) in C or C++ based projects. It’s syntax reflects 40+ years of — organic? — growth, and I was happy to discover this free O’Reilly book that grounds you in the fundamental concepts.
Free O’Reilly Book on GNU Make
astorm
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Programming Quickies
Quick dispatches from the life of a working programmer.