[Bug binutils/28759] New: ar: Add --thin to avoid 'T' conflict with X/Open System Interface

[i at maskray dot me]

https://sourceware.org/bugzilla/show_bug.cgi?id=28759

            Bug ID: 28759
           Summary: ar: Add --thin to avoid 'T' conflict with X/Open
                    System Interface
           Product: binutils
           Version: unspecified
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: binutils
          Assignee: unassigned at sourceware dot org
          Reporter: i at maskray dot me
  Target Milestone: ---

https://pubs.opengroup.org/onlinepubs/9699919799/utilities/ar.html

-T
[XSI] [Option Start] Allow filename truncation of extracted files whose archive
names are longer than the file system can support. By default, extracting a
file with a name that is too long shall be an error; a diagnostic message shall
be written and the file shall not be extracted. [Option End]

FreeBSD ar/macOS ar/elfutils (eu-ar) appear to take this interpretation. For
portability, the 'T' thin archive semantics should be discouraged in favor of
--thin.

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