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.
| • General Search | Specifying a search path that applies to every prerequisite. | |
| • Selective Search | Specifying a search path for a specified class of names. | |
| • Search Algorithm | When and how search paths are applied. | |
| • Recipes/Search | How to write recipes that work together with search paths. | |
| • Implicit/Search | How search paths affect implicit rules. | |
| • Libraries/Search | Directory search for link libraries. |
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Licensed under the GNU Free Documentation License.
https://www.gnu.org/software/make/manual/html_node/Directory-Search.html