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[bug #33134] spurious error when stdout is already closed

From: David Boyce
Subject: [bug #33134] spurious error when stdout is already closed
Date: Thu, 21 Apr 2011 16:25:22 +0000
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Follow-up Comment #2, bug #33134 (project make):

My original one-line patch had two mistakes, which may be a record! In the
course of work for enhancement #33138 I made a macro:

#define STREAM_OK(strm) ((fcntl(fileno((strm)), F_GETFD) != -1) || (errno !=

whose logic would be much better than the original ftell(). Turns out that on
many platforms ftell cannot be used on a non-seekable descriptor at all. My
development is on Solaris where ftell works as a go/no-go indicator, but that
isn't portable. And the EBADF test is required for reasons which are obvious
and also discussed in the email thread.


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