帮助 － AIX 6.1 Information Center. Commands in a Makefile. A description block or inference rule specifies a block of commands to run if the dependency is out-of-date.
NMAKE displays each command before running it, unless /S, .SILENT, ! CMDSWITCHES, or @ is used. NMAKE looks for a matching inference rule if a description block is not followed by a commands block. A commands block contains one or more commands, each on its own line. No blank line can appear between the dependency or rule and the commands block. Makefile Tutorial. Compiling your source code files can be tedious, specially when you want to include several source files and have to type the compiling command everytime you want to do it. Well, I have news for you... Your days of command line compiling are (mostly) over, because YOU will learn how to write Makefiles. Makefiles are special format files that together with the make utility will help you to automagically build and manage your projects.