http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58128
--- Comment #2 from Ellis N. Thomas <ExtraLeveLInSoftware at ntlworld dot com> --- Further Information about the Exception Added extra "others" handler for Unexpected exceptions to TryStdIP3. Compiled: bash> gnatmake TryStdIP3.ada gcc -c -x ada trystdip3.ada gnatbind -x trystdip3.ali gnatlink trystdip3.ali Ran: bash> trystdip3 TryStdIP3 from SiRiL Issue 0.22 21-Apr-1989 Copyright (c) 2013 E.N. Thomas Started at : 12:45:57 14/ 8/13 Try to get NAME (STANDARD_INPUT) Try to open CommandFile using: <*stdin> raised PROGRAM_ERROR : unhandled signal So the "others" handler has failed to handle this PROGRAM_ERROR! Although it is reported as an exception, it is not able to be handled in the normal Ada way, so this seriously compromises the ability to work around this error. Consequently, a work-round such as a new version of s-fileio.adb (system__file_io__open) and/or a-textio.adb (ada__text_io__open) would be appreciated. E.N. Thomas/14-Aug-2013