Ticket #40848

update errno.h ENOTSUP + EOVERFLOW

Open Date: 2020-10-09 06:51 Last Update: 2020-10-10 05:08

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Status:
Closed
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Priority:
5 - Medium
Severity:
5 - Medium
Resolution:
Rejected
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Details

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

  1. /* necessary to build recent binutils: */
  2. #define ENOTSUP 129
  3. #define EOVERFLOW 132

and suggest this may be done in general.

Ticket History (2/2 Histories)

2020-10-09 06:51 Updated by: osdn-mensch
  • New Ticket "update errno.h ENOTSUP + EOVERFLOW" created
2020-10-10 05:08 Updated by: keith
  • Status Update from Open to Closed
  • Resolution Update from None to Rejected
Comment

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

  1. #ifndef ENOTSUP
  2. #define ENOTSUP ENOSYS
  3. #endif
  4. #ifndef EOVERFLOW
  5. #define EOVERFLOW ERANGE
  6. #endif

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