dev-java/quartz/quartz-1.3.4.ebuild sets the variable USE insetad of IUSE Reproducible: Always Steps to Reproduce: 1. 2. 3. dev-java/quartz/quartz-1.3.4.ebuild has the following line: USE="oracle servlet-2.3 servlet-2.4 dbcp jboss jta jmx struts jikes" and should clearly be: IUSE="oracle servlet-2.3 servlet-2.4 dbcp jboss jta jmx struts jikes"
Fixed in CVS. Thanks for the bug report.