Special dependencies Usually, make uses the same command to create or update a target, regardless of which file changes. Some other files, such as libraries allow users to replace a portion of its code. For this kind of different behavior, make allows a special form of the dependency, where the action specified can differ, depending on which file has changed. Here is an example for this rule: target :: source1 command1 target :: source2 command2 As we have described, if source1 changes, target is created or updated using command1; command2 is used if source2 is modified instead. Previous Next Index

Author: Ben Yoshino (ben@wiliki.eng.hawaii.edu) Comments, Questions? | E-mail: webmaster@wiliki.eng.hawaii.edu Last updated on Monday, February 05, 2001 Copyright © 2001 University of Hawai`i, College of Engineering, Computer Facility All rights reserved.