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From: "eblake at redhat dot com" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sources.redhat.com
Subject: [Bug libc/13171] New: missing XSI declarations, such as crypt in <unistd.h>
Date: Thu, 08 Sep 2011 20:43:00 -0000
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http://sourceware.org/bugzilla/show_bug.cgi?id=13171

             Bug #: 13171
           Summary: missing XSI declarations, such as crypt in <unistd.h>
           Product: glibc
           Version: 2.14
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
        AssignedTo: drepper.fsp@gmail.com
        ReportedBy: eblake@redhat.com
    Classification: Unclassified


According to POSIX 2008, crypt() and encrypt() should unconditionally be
declared in <unistd.h> by any implementation claiming to provide XSI.  Yet:

$ printf '#define _POSIX_C_SOURCE 200809L\n#include <unistd.h>\n' \
   | gcc -E - | grep crypt
$

shows 0 hits, and it takes _GNU_SOURCE to convince glibc that we want those
declarations.  The same is true of POSIX 2001.  Likewise for setkey() in
<stdlib.h>.

https://lists.gnu.org/archive/html/bug-gnulib/2011-09/msg00096.html

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