Info Catalog make: Using Variables make: Top make: Functions

make: Conditionals

 
 7 Conditional Parts of Makefiles
 ********************************
 
 A "conditional" directive 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 recipes at the time of
 execution.
 

Menu

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

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