TheFree Pascal Runtime Library, abbreviatedRTL, isFree Pascal'sruntime library.

The RTL consists of a collection ofunits that providecomponents andclasses for general programming tasks. It acts as a basis forFree Pascal'sFree Component Library (FCL) and theLazarus Component Library (LCL). The RTL is licensed under theLGPL with a static linking exception.

• Michaël van Canneyt; Florian Klämpfl (2012),Free Pascal (Free Pascal 2 ed.), Computer & Literatur Verlag GmbH,ISBN 978-3936546729,OL 25421359M, 393654672X
• Roderick Person (2013),Getting Started with Lazarus IDE, Packt Publishing,ISBN 978-1782163404,OL 25426631M, 1782163409

• RTL documentation in the Free Pascal Wiki
• Complete online reference

• Free Pascal
• Pascal (programming language) libraries
• Computer libraries
• Platform-sensitive development
• Software using the GNU Lesser General Public License