CMake Generator Expressions: Logic, Strings, and Target Queries

Managing complex build configurations across different platforms and build types can quickly lead to cluttered CMake scripts. Generator expressions offer a powerful way to inject conditional logic and query target properties directly during the generation phase. In this written course, you will learn how to read, write, and implement CMake generator expressions to create clean, maintainable, and highly dynamic build systems. You will transition from writing static configurations to crafting smart, context-aware build logic. What you'll learn: - Understand the core syntax of generator expressions and their evaluation phases - Apply boolean logic and conditional operators to control build parameters - Practice string operations and comparisons directly inside generator expressions - Configure target queries to dynamically retrieve properties during build generation - Learn modern CMake practices to write clean, maintainable build logic This course begins with essential terminology, outlining the core differences between the configure and generate phases in CMake. You will then progress through practical, text-based examples that demonstrate how to implement logical evaluations, work with strings, and query target metadata. This course is designed for software developers and build engineers who have a basic familiarity with CMake and want to write more flexible scripts. No advanced build engineering experience is required. Start reading today to unlock the full potential of dynamic CMake configurations.