freebsd-skq/contrib/bind9/config.threads.in
dougb 31eda3d2ca Update to BIND 9.6.3, the latest from ISC on the 9.6 branch.
All 9.6 users with DNSSEC validation enabled should upgrade to this
version, or the latest version in the 9.7 branch, prior to 2011-03-31
in order to avoid validation failures for names in .COM as described
here:

https://www.isc.org/announcement/bind-9-dnssec-validation-fails-new-ds-record

In addition the fixes for this and other bugs, there are also the
following:

  * Various fixes to kerberos support, including GSS-TSIG
  * Various fixes to avoid leaking memory, and to problems that could
    prevent a clean shutdown of named
2011-02-06 22:46:07 +00:00

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#
# Begin pthreads checking.
#
# First, decide whether to use multithreading or not.
#
# Enable multithreading by default on systems where it is known
# to work well, and where debugging of multithreaded programs
# is supported.
#
AC_MSG_CHECKING(whether to build with thread support)
case $host in
*-dec-osf*)
use_threads=true ;;
[*-solaris2.[0-6]])
# Thread signals are broken on Solaris 2.6; they are sometimes
# delivered to the wrong thread.
use_threads=false ;;
*-solaris*)
use_threads=true ;;
*-ibm-aix*)
use_threads=true ;;
*-hp-hpux10*)
use_threads=false ;;
*-hp-hpux11*)
use_threads=true ;;
*-sgi-irix*)
use_threads=true ;;
*-sco-sysv*uw*|*-*-sysv*UnixWare*)
# UnixWare
use_threads=false ;;
*-*-sysv*OpenUNIX*)
# UnixWare
use_threads=true ;;
*-netbsd[1234].*)
# NetBSD earlier than NetBSD 5.0 has poor pthreads. Don't use it by default.
use_threads=false ;;
*-netbsd*)
use_threads=true ;;
*-openbsd*)
# OpenBSD users have reported that named dumps core on
# startup when built with threads.
use_threads=false ;;
*-freebsd*)
use_threads=false ;;
*-bsdi[234]*)
# Thread signals do not work reliably on some versions of BSD/OS.
use_threads=false ;;
*-bsdi5*)
use_threads=true ;;
*-linux*)
# Threads are disabled on Linux by default because most
# Linux kernels produce unusable core dumps from multithreaded
# programs, and because of limitations in setuid().
use_threads=false ;;
*)
use_threads=false ;;
esac
AC_ARG_ENABLE(threads,
[ --enable-threads enable multithreading])
case "$enable_threads" in
yes)
use_threads=true
;;
no)
use_threads=false
;;
'')
# Use system-dependent default
;;
*)
AC_MSG_ERROR([--enable-threads takes yes or no])
;;
esac
if $use_threads
then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
if $use_threads
then
#
# Search for / configure pthreads in a system-dependent fashion.
#
case "$host" in
*-freebsd*)
# We don't want to set -lpthread as that break
# the ability to choose threads library at final
# link time and is not valid for all architectures.
PTHREAD=
if test "X$GCC" = "Xyes"; then
saved_cc="$CC"
CC="$CC -pthread"
AC_MSG_CHECKING(for gcc -pthread support);
AC_TRY_LINK([#include <pthread.h>],
[printf("%x\n", pthread_create);],
PTHREAD="yes"
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no))
CC="$saved_cc"
fi
if test "X$PTHREAD" != "Xyes"; then
AC_CHECK_LIB(pthread, pthread_create,,
AC_CHECK_LIB(thr, thread_create,,
AC_CHECK_LIB(c_r, pthread_create,,
AC_CHECK_LIB(c, pthread_create,,
AC_MSG_ERROR("could not find thread libraries")))))
fi
;;
*)
AC_CHECK_LIB(pthread, pthread_create,,
AC_CHECK_LIB(pthread, __pthread_create,,
AC_CHECK_LIB(pthread, __pthread_create_system,,
AC_CHECK_LIB(c_r, pthread_create,,
AC_CHECK_LIB(c, pthread_create,,
AC_MSG_ERROR("could not find thread libraries"))))))
;;
esac
fi