Hello Luke, Luke A. Guest wrote: > Can anyone give me a pointer here? I'm totally new to this :/
> a-exexpr.adb:39:06: "Ada.Exceptions.Exception_Propagation" is not a > predefined library unit > a-exexpr.adb:39:06: "Ada.Exceptions (body)" depends on > "Ada.Exceptions.Exception_Propagation (body)" > a-exexpr.adb:39:06: "Ada.Exceptions.Exception_Propagation (body)" > depends on "Ada.Exceptions.Exception_Propagation (spec)" We discussed this internally a bit. The compiler is looking for the spec of Ada.Exceptions.Exception_Propagation in a separate file (which would be a-exexpr.ads) because you are trying to add a child of it. This won't work, as there is indeed no such file today because this unit is provided as a subunit of ada.exceptions (package bla is ... end; package body bla is separate;) What you probably could do instead is to define a System unit (e.g. System.GCC_Exceptions or System.Unwind_Control or ...) to hold the low level unwinder type definitions. That would allow reuse from other units, which might become of interest in the not so distant future. In case you don't already know about it, gnatmake -a is a very convenient device to experiment with alternate/extra Ada runtime units (accounts for variants in the current directory, for example). Olivier
