category: Libs requires: tzdata cygwin sdesc: "iCalendar library" ldesc: "Libical is an Open Source implementation of the IETF's iCalendar Calendaring and Scheduling protocols. (RFC 2445, 2446, and 2447). It parses iCal components and provides a C API for manipulating the component properties, parameters, and subcomponents." external-source: libical