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# Conditional Parts of Makefiles

A conditional causes part of a makefile to be obeyed or ignored depending on the values of variables. Conditionals can compare the value of one variable to another, or the value of a variable to a constant string. Conditionals control what `make` actually "sees" in the makefile, so they cannot be used to control shell commands at the time of execution.

- Conditional Example: Example of a conditional
- Conditional Syntax: The syntax of conditionals.
- Testing Flags: Conditionals that test flags.

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