Created attachment 8614 [details] Error when trying to run a simple app. I am running gdb together with Lazarus 1.4.0 and FPC 2.6.4 on a iMAC (Retina 5K) under OS x Yosemite 10.10.5. I have codesigned gdb. It gives me the error as shown in attachement. Can you help me please. Léon Kirsch.