Automatic Variables (GNU make) 10.5.3 Automatic Variables Suppose you are writing a pattern rule to compile a ‘.c ’ file into a ‘.o ’ file: how do you write the ‘ cc ’ command so that it operates on the right source file name? You cannot write the name in the recipe, because the name is different each time the implicit rule is applied. What you do is use a special feature of make ...
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GNU make This file documents the GNU make utility, which determines automatically which pieces of a large program need to be recompiled, and issues the commands to recompile them. This is Edition 0.77, last updated 26 February 2023, of The GNU Make Manual, for GNU make version 4.4.1.
Automatic variables are set by make after a rule is matched. They provide access to elements from the target and prerequisite lists so you don’t have to explicitly specify any filenames.
What do the makefile symbols $@ and $< mean? - Stack Overflow
The full documentation for make is maintained as a Texinfo manual. If the info and make programs are properly installed at your site, the command info make should give you access to the complete manual. BUGS top See the chapter ``Problems and Bugs'' in The GNU Make Manual. AUTHOR top This manual page contributed by Dennis Morse of Stanford