Gentoo's Bugzilla –
Attachment 362954 Details for
Bug 490906=dev-db/firebird-2.0.3.12981.0-r6 fails with error "../src/include/../common/classes/array.h:275:3: error: ‘insert’ was not declared in this scope, and no declarations were found by argument-dependent lookup at the point of instantiation [-fpermissive]"