4.4 Searching Directories for Prerequisites

For large systems, it is often desirable to put sources in a separate directory from the binaries. The directory search features of make facilitate this by searching several directories automatically to find a prerequisite. When you redistribute the files among directories, you do not need to change the individual rules, just the search paths.

4.4.1 VPATH: Search Path for All Prerequisites		Specifying a search path that applies to every prerequisite.
4.4.2 The vpath Directive		Specifying a search path for a specified class of names.
4.4.3 How Directory Searches are Performed		When and how search paths are applied.
4.4.4 Writing Shell Commands with Directory Search		How to write shell commands that work together with search paths.
4.4.5 Directory Search and Implicit Rules		How search paths affect implicit rules.
4.4.6 Directory Search for Link Libraries		Directory search for link libraries.