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[sr #110300] configure >/dev/full does not fail promptly

From: Zack Weinberg
Subject: [sr #110300] configure >/dev/full does not fail promptly
Date: Fri, 28 Aug 2020 10:54:34 -0400 (EDT)
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0


                 Summary: configure >/dev/full does not fail promptly
                 Project: Autoconf
            Submitted by: zackw
            Submitted on: Fri 28 Aug 2020 02:54:33 PM UTC
                Category: None
                Priority: 5 - Normal
                Severity: 3 - Normal
                  Status: Confirmed
                 Privacy: Public
             Assigned to: None
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
        Operating System: None



If you run a configure script with stdout pointed to a data sink that fails
all writes (e.g. `./configure > /dev/full` or `./configure 1< /dev/null`) you
get a flood of "printf: write error" messages, but the script runs all the way
to completion, and then it may or may not exit successfully depending on
exactly what you did.

The script should instead exit unsuccessfully after the first write error.


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