|GNU Make Manual||www.imodulo.com · 2003-04-05|
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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.
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