Chapter 17. Using USES Macros

USES macros make it easy to declare requirements and settings for a port. They can add dependencies, change building behavior, add metadata to packages, and so on, all by selecting simple, preset values.

Each section in this chapter describes a possible value for USES, along with its possible arguments. Arguments are appeneded to the value after a colon (:). Multiple arguments are separated by commas (,).

USES=	bison perl

USES=	tar:xz

USES=	drupal:7,theme

USES=	pgsql:9.3+ cpe python:2.7,build