Packages with the calendar use flag

Global definition: Add support for calendars (not using mcal!).

app-office / abiword : Fully featured yet light and fast cross platform word processor

app-office / kmymoney : Personal finance manager based on KDE Frameworks

dev-lang / php : The PHP language runtime engine

kde-plasma / plasma-workspace : KDE Plasma workspace

mail-client / claws-mail : An email client (and news reader) based on GTK+

media-gfx / digikam : Digital photo management application

net-misc / asterisk : Asterisk: A Modular Open Source PBX System