Special macros In addition to those macros which you can create yourself, there are a few macros which are used internally by the make program. Here are some of those, listed below: CC Contains the current C compiler. Defaults to cc. CFLAGS Special options which are added to the built-in C rule. (See next page.) $@ Full name of the current target. $? A list of files for current dependency which are out-of-date. $< The source file of the current (single) dependency. You can also manipulate the way these macros are evaluated, as follows, assuming that OBJS = data.o io.o main.o, using $(OBJS:.o=.c) within the Makefile substitutes .o at the end with .c, giving you the following result: data.c io.c main.c 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.