update errno.h ENOTSUP + EOVERFLOW

• Auswertung: osdn-mensch
• Verantwortlicher: (Keine)
• Typ: Issues
• Status: Geschlossen
• Komponente: (Keine)
• Meilenstein: (Keine)
• Priorität: 5 - Mittel
• Schweregrad: 5 - Mittel
• Lösung: Rejected
• Datei: Keine

Details

I needed to include the following into errno.h to be able to build a recent version of binutils:

 /* necessary to build recent binutils: */
 
 #define ENOTSUP 129
 #define EOVERFLOW 132

and suggest this may be done in general.

Ticket-Verlauf (2/2 Historien)

2020-10-09 06:51 Aktualisiert von: osdn-mensch

• New Ticket "update errno.h ENOTSUP + EOVERFLOW" created

2020-10-10 05:08 Aktualisiert von: keith

• Lösung Update from Keine to Rejected
• Status Update from Offen to Geschlossen

Kommentar

That would be a bug in binutils, then; you should file a bug report on their tracker.

On what basis have you chosen the values 129, and 132? Both are greater than Windows' _sys_nerr limit, and will thus produce unacceptable results, if passed to strerror(), or perror(). Consequently, I will not accept that, as a general principle, these definitions may be arbitrarily adopted.

FWIW, the recommended work-around for this issue is, in the client code, after including <errno.h>, to insert definitions such as

 #ifndef ENOTSUP
 #define ENOTSUP    ENOSYS
 #endif
 
 #ifndef EOVERFLOW
 #define EOVERFLOW  ERANGE
 #endif