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openmpi/config/opal_check_broken_qsort.m4

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dnl -*- shell-script -*-
dnl
dnl Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
dnl University Research and Technology
dnl Corporation. All rights reserved.
dnl Copyright (c) 2004-2005 The University of Tennessee and The University
dnl of Tennessee Research Foundation. All rights
dnl reserved.
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dnl Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
dnl University of Stuttgart. All rights reserved.
dnl Copyright (c) 2004-2005 The Regents of the University of California.
dnl All rights reserved.
dnl Copyright (c) 2007 Sun Microsystems, Inc. All rights reserved.
dnl Copyright (c) 2014 Intel, Inc. All rights reserved.
dnl $COPYRIGHT$
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dnl
dnl Additional copyrights may follow
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dnl
dnl $HEADER$
dnl
dnl There was some mentioning of broken qsort happened for Solaris that could
dnl cause qsort to return a bad pointer which could cause some badness.
dnl The problem should have been corrected with these patches from SunSolve.
dnl Solaris 10 should be free from this problem.
dnl
dnl 5.8_sparc #108827-27 or later
dnl 5.8_x86 #108828-28 or later
dnl 5.9_sparc #112874-20 or later
dnl 5.9_x86 #114432-07 or later
dnl
dnl For users who could not patch their systems or are convinced that their
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dnl native qsort is broken, they could specify this configure flag to use
dnl the opal_qsort instead.
# check for broken qsort
# OPAL_CHECK_BROKEN_QSORT(prefix, [action-if-found], [action-if-not-found])
# --------------------------------------------------------
AC_DEFUN([OPAL_CHECK_BROKEN_QSORT],[
AC_ARG_WITH([broken-qsort],
[AC_HELP_STRING([--with-broken-qsort],
[Build with FreeBSD qsort instead of native qsort (default: no)])])
AC_MSG_CHECKING([for broken qsort])
if test "$with_broken_qsort" = "yes"; then
result="yes"
define_result=1
else
result="no"
define_result=0
fi
AC_MSG_RESULT([$result])
AC_DEFINE_UNQUOTED([OPAL_HAVE_BROKEN_QSORT], [$define_result],
[whether qsort is broken or not])
])