RFC: Work around POSIX non-conformity of Microsoft's dup2() function

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From: Keith Marshall <[email protected]>
Reply-To: keith.d.marshall-XZoyATsUNX5Wk0Htik3J/[email protected]
To: MinGW Users List <[email protected]>
Message-ID: <927e5be5-e2b1-4970-3b14-b6ab9d3a0db8-JlWs9+JhQMeJPt80KsDg5Q@public.gmane.org>
Subject: RFC: Work around POSIX non-conformity of Microsoft's dup2() function

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The documentation describes it as a POSIX function, (in name at least,
and albeit deprecated for use with MSVC), but its behaviour definitely
does NOT conform to the POSIX.1 specification.

I've written a description of the issue, and proposed corrective action,
as ticket https://osdn.net/projects/mingw/ticket/42561

I would appreciate a review of my proposed changes, by the MinGW user
community.  In the absence of any objections, I plan to incorporate the
proposed (option 4) change into the next mingwrt release.

TIA.

--=20
Regards,
Keith.

Public key available from keys.gnupg.net
Key fingerprint: C19E C018 1547 DE50 E1D4 8F53 C0AD 36C6 347E 5A3F


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