[master] add dnsperf to contrib

4314.	[contrib]	Added 'dnsperf-2.1.0.0-1', a set of performance
			testing tools provided by Nominum, Inc.

Makefile.in

+# Copyright 2000, 2001, 2003, 2006-2012  Nominum, Inc.  All Rights Reserved.
+
+prefix = @prefix@
+exec_prefix = @exec_prefix@
+bindir = @bindir@
+mandir = @mandir@
+datarootdir = @datarootdir@
+
+INSTALL = @INSTALL@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@ 
+INSTALL_DATA = @INSTALL_DATA@ 
+RANLIB = @RANLIB@
+
+CC = @PTHREAD_CC@
+CFLAGS = @CFLAGS@ @DNSCFLAGS@ @DEFS@ @PTHREAD_CFLAGS@
+LIBS = libperf.a @LIBS@ @DNSLIBS@ @PTHREAD_LIBS@ -lm
+LIBOBJS = @LIBOBJS@
+LDFLAGS = @LDFLAGS@ @PTHREAD_CFLAGS@
+
+PERFOBJS = datafile.o dns.o log.o net.o opt.o os.o
+
+all: dnsperf resperf
+
+libperf.a: ${PERFOBJS}
+	${AR} ${ARFLAGS} $@ ${PERFOBJS}
+	${RANLIB} $@
+
+dnsperf: dnsperf.o libperf.a $(LIBOBJS)
+	$(CC) $(LDFLAGS) dnsperf.o $(LIBOBJS) $(LIBS) -o dnsperf
+
+resperf: resperf.o libperf.a $(LIBOBJS)
+	$(CC) $(LDFLAGS) resperf.o $(LIBOBJS) $(LIBS) -o resperf
+
+.c.o:
+	$(CC) $(CFLAGS) -c $<
+
+installdirs:
+	mkdir -p ${DESTDIR}${bindir}
+	mkdir -p ${DESTDIR}${mandir}/man1
+
+install: all installdirs
+	${INSTALL_PROGRAM} dnsperf ${DESTDIR}${bindir}
+	${INSTALL_PROGRAM} resperf ${DESTDIR}${bindir}
+	${INSTALL_PROGRAM} resperf-report ${DESTDIR}${bindir}
+	${INSTALL_DATA} dnsperf.1 ${DESTDIR}${mandir}/man1
+	${INSTALL_DATA} resperf.1 ${DESTDIR}${mandir}/man1
+
+clean:
+	rm -f *.o dnsperf resperf libperf.a
+
+distclean: clean
+	rm -f config.log
+	rm -f config.cache
+	rm -f config.status
+	rm -f Makefile

README

+This is dnsperf, a collection of DNS server performance testing tools.
+For more information, see the dnsperf(1) and resperf(1) man pages.
+
+To configure, compile, and install these programs, follow these steps.
+
+1. Make sure that BIND 9 (9.4.0 or greater) is installed, including libraries
+   and header files, and that the isc-config.sh program distributed with BIND
+   is in your path.
+   
+   Note: many versions of bind do not correctly install the <isc/hmacsha.h>
+   header file, so if the compilation fails, obtain this file from the BIND
+   source distribution, and install it in the appropriate place.
+
+2. Run "sh configure" to configure the software.  Most standard configure
+   options are supported.
+
+3. Run "make" to build dnsperf and resperf
+
+4. Run "make install" to install dnsperf and resperf.
+
+Additional software is available in the contrib/ directory.

RELEASE_NOTES

+Nominum dnsperf 2.1.0.0
+Release Notes
+************************
+ 
+December 15, 2015
+
+In addition to various bug fixes, the following new capabilities
+were added in this release:
+
+ - The -C option was added to resperf. This option enables the local
+   server to act as multiple clients.  By default, the local server
+   acts as a single client.
+
+ - the -T option was added to dnsperf. This option separates the
+   number of clients from the number of threads and allows more
+   clients to be simulated effectively.  Note that using this option
+   impacts CPU and memory, so we recommend limiting the number of
+   threads.
+
+
+-----------------------
+Nominum dnsperf 2.0.0.0
+March 1, 2012
+ 
+In the dnsperf command, the following changes occurred:
+
+ - The socket buffer size is no longer set to 32 kilobytes by default.
+
+ - A new -c clients option was added to enable the server to act as 
+   multiple clients. Each client uses the same source IP address with a 
+   unique source port. Use the "clients" argument to specify the number of 
+   clients represented by the server. We recommend limiting the number of 
+   clients represented by the server because the dnsperf process uses two  
+   threads for each client (one thread for sent packets and one for 
+   received packets), which impacts CPU and memory. 
+
+ - Example query files are no longer included with the dnsperf program.  
+   Nominum provides a sample query file that is available for download at:
+   ftp://ftp.nominum.com/pub/nominum/dnsperf/data/
+
+ - Latency reporting improved. When the -v (verbose mode) option is 
+   configured with the dnsperf command, the command output now includes 
+   latency measurements and the DNS RCODE of each response. This enables 
+   users to create their own latency graphs.
+
+ - Performance was enhanced on modern operating systems so that faster 
+   name servers can be tested.
+
+ - The dnsperf command output is enhanced to display more information in a 
+   compact format.
+
+The following options were removed from the dnsperf command:
+
+ - The -A option for displaying command line arguments passed to the 
+   dnsperf tool in the final statistics output. Now, the dnsperf command
+   output always displays command line arguments.
+
+ - The -T option for printing a histogram showing response latency after 
+   completing a test run. Now, the -v option enables users to include 
+   latency measurements in the dnsperf command output.
+
+ - The -H option for configuring the number of buckets for which response 
+   latency is displayed. Now, the -v option enables users to include
+   latency measurements in the dnsperf command output.
+
+ - The -1 option for configuring the dnsperf tool to run through the input 
+   file exactly one time. (Now, you use the -n 1 option to configure the 
+   dnsperf tool to run through the input file one time.)
+
+ - The -c option for including the number of responses received (for 
+   each DNS RCODE) in the final statistics output. Now, DNS RCODE responses 
+   are always reported.
+
+In the resperf command, the following changes occurred:
+ 
+ - The socket buffer size is no longer set to 32 kilobytes by default.
+
+ - The -A option, which displayed command line arguments passed to the 
+   resperf tool in the final statistics output, was removed. Now, the 
+   resperf command output always displays command line arguments.
+
+
+-----------------------
+Nominum dnsperf 1.0.2.0
+December 22, 2011
+
+This release adds support for RHEL6-64 and for Solaris 10 x86-64.
+
+Some new configuration options have been added. You can now specify:
+
+	- the local port from which to send requests
+	- the local address from which to send requests
+	- the maximum number of runs through the input file, up
+	  to the timeout limit.
+	- when using TSIG, algorithms other than hmac-md5 can be used.
+
+One default has been changed:
+
+	- The maximum number of outstanding requests now defaults
+	  to 100.
+
+A new example query file for IPv6, queryfile-example-ipv6, is now
+included with the distribution.
+
+
+-----------------------
+Nominum dnsperf 1.0.1.0
+January 10, 2008
+
+This release makes binary builds of dnsperf available in addition to
+the source code version previously released.
+
+This release of dnsperf includes a sample query file containing
+100,000 queries to help with performance testing.  This query file is
+useful for checking latencies or a continuous dnsperf run. In the
+binary distribution, this file is found at:
+
+	/usr/local/nom/examples/dnsperf/queryfile-example-100thousand
+
+In the source distribution, it is at:
+
+	./examples/queryfile-example-100thousand
+
+where "." is the directory made by extracting the source tarball.
+
+Nominum recommends using a query file with at least 3 million queries
+for a full resperf run as described in the man page; we make such a
+file available for download at:
+
+ftp://ftp.nominum.com/pub/nominum/dnsperf/data/queryfile-example-3million.gz
+
+The following fix is included in the source distribution:
+
+ - 20996: makefile.in does not allow overriding mandir
+
+   The --mandir argument to configure, which allows the user to
+   specify the location man pages are installed, was incorrectly
+   ignored.
+
+"queryparse" is a contributed program available in the source
+distribution of dnsperf. It can be found at contrib/queryparse/.
+The following changes were made to that program:
+
+ - 19717: contrib/queryparse includes outgoing queries
+
+   The queryparse script had no way of distinguishing between incoming
+   queries and outgoing queries when applied to a traffic trace from a
+   caching server. This was addressed by adding a new flag (-r) that,
+   when included in the command line, will keep queries with
+   RD=0. Otherwise, it will default to discarding them.
+   
+ - The ability to parse responses instead of queries was added.
+
+ - A check was added to avoid short packets.
+
+ - Logic was added to detect link type and correctly set the initial
+   offset to handle both Ethernet and Cisco HDLC frames.
+
+ - Queryparse now uses pcapy instead of the btk python libcap module.
+
+Note that announcements of new releases of dnsperf are sent to the
+mailing list: dnsperf-announce@nominum.com.  To be added to the
+mailing list, send a message to dnsperf-announce-request@nominum.com
+with "subscribe" as the subject.
+
+Known Issues:
+
+  - None.
+
+-----------------------
+Nominum dnsperf 1.0.0.1
+December 21, 2006
+
+This release addresses the following issue in the dnsperf program:
+
+  - 18838/18782: dnsperf slow down issue
+
+    Because of an error in how timeout checking was being done, queries
+    were rarely timing out, so the number of valid queries in flight kept
+    dropping.  This error has been corrected.
+
+
+

aclocal.m4

+sinclude(./acx_pthread.m4)dnl
+

acx_pthread.m4

+dnl @synopsis ACX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
+dnl
+dnl @summary figure out how to build C programs using POSIX threads
+dnl
+dnl This macro figures out how to build C programs using POSIX threads.
+dnl It sets the PTHREAD_LIBS output variable to the threads library and
+dnl linker flags, and the PTHREAD_CFLAGS output variable to any special
+dnl C compiler flags that are needed. (The user can also force certain
+dnl compiler flags/libs to be tested by setting these environment
+dnl variables.)
+dnl
+dnl Also sets PTHREAD_CC to any special C compiler that is needed for
+dnl multi-threaded programs (defaults to the value of CC otherwise).
+dnl (This is necessary on AIX to use the special cc_r compiler alias.)
+dnl
+dnl NOTE: You are assumed to not only compile your program with these
+dnl flags, but also link it with them as well. e.g. you should link
+dnl with $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS
+dnl $LIBS
+dnl
+dnl If you are only building threads programs, you may wish to use
+dnl these variables in your default LIBS, CFLAGS, and CC:
+dnl
+dnl        LIBS="$PTHREAD_LIBS $LIBS"
+dnl        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+dnl        CC="$PTHREAD_CC"
+dnl
+dnl In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute
+dnl constant has a nonstandard name, defines PTHREAD_CREATE_JOINABLE to
+dnl that name (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
+dnl
+dnl ACTION-IF-FOUND is a list of shell commands to run if a threads
+dnl library is found, and ACTION-IF-NOT-FOUND is a list of commands to
+dnl run it if it is not found. If ACTION-IF-FOUND is not specified, the
+dnl default action will define HAVE_PTHREAD.
+dnl
+dnl Please let the authors know if this macro fails on any platform, or
+dnl if you have any other suggestions or comments. This macro was based
+dnl on work by SGJ on autoconf scripts for FFTW (www.fftw.org) (with
+dnl help from M. Frigo), as well as ac_pthread and hb_pthread macros
+dnl posted by Alejandro Forero Cuervo to the autoconf macro repository.
+dnl We are also grateful for the helpful feedback of numerous users.
+dnl
+dnl @category InstalledPackages
+dnl @author Steven G. Johnson <stevenj@alum.mit.edu>
+dnl @version 2006-05-29
+dnl @license GPLWithACException
+
+AC_DEFUN([ACX_PTHREAD], [
+AC_REQUIRE([AC_CANONICAL_HOST])
+AC_LANG_SAVE
+AC_LANG_C
+acx_pthread_ok=no
+
+# We used to check for pthread.h first, but this fails if pthread.h
+# requires special compiler flags (e.g. on True64 or Sequent).
+# It gets checked for in the link test anyway.
+
+# First of all, check if the user has set any of the PTHREAD_LIBS,
+# etcetera environment variables, and if threads linking works using
+# them:
+if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
+        save_CFLAGS="$CFLAGS"
+        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+        save_LIBS="$LIBS"
+        LIBS="$PTHREAD_LIBS $LIBS"
+        AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS])
+        AC_TRY_LINK_FUNC(pthread_join, acx_pthread_ok=yes)
+        AC_MSG_RESULT($acx_pthread_ok)
+        if test x"$acx_pthread_ok" = xno; then
+                PTHREAD_LIBS=""
+                PTHREAD_CFLAGS=""
+        fi
+        LIBS="$save_LIBS"
+        CFLAGS="$save_CFLAGS"
+fi
+
+# We must check for the threads library under a number of different
+# names; the ordering is very important because some systems
+# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
+# libraries is broken (non-POSIX).
+
+# Create a list of thread flags to try.  Items starting with a "-" are
+# C compiler flags, and other items are library names, except for "none"
+# which indicates that we try without any flags at all, and "pthread-config"
+# which is a program returning the flags for the Pth emulation library.
+
+acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
+
+# The ordering *is* (sometimes) important.  Some notes on the
+# individual items follow:
+
+# pthreads: AIX (must check this before -lpthread)
+# none: in case threads are in libc; should be tried before -Kthread and
+#       other compiler flags to prevent continual compiler warnings
+# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
+# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
+# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
+# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
+# -pthreads: Solaris/gcc
+# -mthreads: Mingw32/gcc, Lynx/gcc
+# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
+#      doesn't hurt to check since this sometimes defines pthreads too;
+#      also defines -D_REENTRANT)
+#      ... -mt is also the pthreads flag for HP/aCC
+# pthread: Linux, etcetera
+# --thread-safe: KAI C++
+# pthread-config: use pthread-config program (for GNU Pth library)
+
+case "${host_cpu}-${host_os}" in
+        *solaris*)
+
+        # On Solaris (at least, for some versions), libc contains stubbed
+        # (non-functional) versions of the pthreads routines, so link-based
+        # tests will erroneously succeed.  (We need to link with -pthreads/-mt/
+        # -lpthread.)  (The stubs are missing pthread_cleanup_push, or rather
+        # a function called by this macro, so we could check for that, but
+        # who knows whether they'll stub that too in a future libc.)  So,
+        # we'll just look for -pthreads and -lpthread first:
+
+        acx_pthread_flags="-pthreads pthread -mt -pthread $acx_pthread_flags"
+        ;;
+esac
+
+if test x"$acx_pthread_ok" = xno; then
+for flag in $acx_pthread_flags; do
+
+        case $flag in
+                none)
+                AC_MSG_CHECKING([whether pthreads work without any flags])
+                ;;
+
+                -*)
+                AC_MSG_CHECKING([whether pthreads work with $flag])
+                PTHREAD_CFLAGS="$flag"
+                ;;
+
+		pthread-config)
+		AC_CHECK_PROG(acx_pthread_config, pthread-config, yes, no)
+		if test x"$acx_pthread_config" = xno; then continue; fi
+		PTHREAD_CFLAGS="`pthread-config --cflags`"
+		PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
+		;;
+
+                *)
+                AC_MSG_CHECKING([for the pthreads library -l$flag])
+                PTHREAD_LIBS="-l$flag"
+                ;;
+        esac
+
+        save_LIBS="$LIBS"
+        save_CFLAGS="$CFLAGS"
+        LIBS="$PTHREAD_LIBS $LIBS"
+        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+
+        # Check for various functions.  We must include pthread.h,
+        # since some functions may be macros.  (On the Sequent, we
+        # need a special flag -Kthread to make this header compile.)
+        # We check for pthread_join because it is in -lpthread on IRIX
+        # while pthread_create is in libc.  We check for pthread_attr_init
+        # due to DEC craziness with -lpthreads.  We check for
+        # pthread_cleanup_push because it is one of the few pthread
+        # functions on Solaris that doesn't have a non-functional libc stub.
+        # We try pthread_create on general principles.
+        AC_TRY_LINK([#include <pthread.h>],
+                    [pthread_t th; pthread_join(th, 0);
+                     pthread_attr_init(0); pthread_cleanup_push(0, 0);
+                     pthread_create(0,0,0,0); pthread_cleanup_pop(0); ],
+                    [acx_pthread_ok=yes])
+
+        LIBS="$save_LIBS"
+        CFLAGS="$save_CFLAGS"
+
+        AC_MSG_RESULT($acx_pthread_ok)
+        if test "x$acx_pthread_ok" = xyes; then
+                break;
+        fi
+
+        PTHREAD_LIBS=""
+        PTHREAD_CFLAGS=""
+done
+fi
+
+# Various other checks:
+if test "x$acx_pthread_ok" = xyes; then
+        save_LIBS="$LIBS"
+        LIBS="$PTHREAD_LIBS $LIBS"
+        save_CFLAGS="$CFLAGS"
+        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+
+        # Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
+	AC_MSG_CHECKING([for joinable pthread attribute])
+	attr_name=unknown
+	for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
+	    AC_TRY_LINK([#include <pthread.h>], [int attr=$attr; return attr;],
+                        [attr_name=$attr; break])
+	done
+        AC_MSG_RESULT($attr_name)
+        if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
+            AC_DEFINE_UNQUOTED(PTHREAD_CREATE_JOINABLE, $attr_name,
+                               [Define to necessary symbol if this constant
+                                uses a non-standard name on your system.])
+        fi
+
+        AC_MSG_CHECKING([if more special flags are required for pthreads])
+        flag=no
+        case "${host_cpu}-${host_os}" in
+            *-aix* | *-freebsd* | *-darwin*) flag="-D_THREAD_SAFE";;
+            *solaris* | *-osf* | *-hpux*) flag="-D_REENTRANT";;
+        esac
+        AC_MSG_RESULT(${flag})
+        if test "x$flag" != xno; then
+            PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
+        fi
+
+        LIBS="$save_LIBS"
+        CFLAGS="$save_CFLAGS"
+
+        # More AIX lossage: must compile with xlc_r or cc_r
+	if test x"$GCC" != xyes; then
+          AC_CHECK_PROGS(PTHREAD_CC, xlc_r cc_r, ${CC})
+        else
+          PTHREAD_CC=$CC
+	fi
+else
+        PTHREAD_CC="$CC"
+fi
+
+AC_SUBST(PTHREAD_LIBS)
+AC_SUBST(PTHREAD_CFLAGS)
+AC_SUBST(PTHREAD_CC)
+
+# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
+if test x"$acx_pthread_ok" = xyes; then
+        ifelse([$1],,AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.]),[$1])
+        :
+else
+        acx_pthread_ok=no
+        $2
+fi
+AC_LANG_RESTORE
+])dnl ACX_PTHREAD

config.guess

+#! /bin/sh
+# Attempt to guess a canonical system name.
+#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+#   2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+
+timestamp='2009-01-17'
+
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# Originally written by Per Bothner <per@bothner.com>.
+# Please send patches to <config-patches@gnu.org>.  Submit a context
+# diff and a properly formatted ChangeLog entry.
+#
+# This script attempts to guess a canonical system name similar to
+# config.sub.  If it succeeds, it prints the system name on stdout, and
+# exits with 0.  Otherwise, it exits with 1.
+#
+# The plan is that this can be called by configure scripts if you
+# don't specify an explicit build system type.
+
+me=`echo "$0" | sed -e 's,.*/,,'`
+
+usage="\
+Usage: $0 [OPTION]
+
+Output the configuration name of the system \`$me' is run on.
+
+Operation modes:
+  -h, --help         print this help, then exit
+  -t, --time-stamp   print date of last modification, then exit
+  -v, --version      print version number, then exit
+
+Report bugs and patches to <config-patches@gnu.org>."
+
+version="\
+GNU config.guess ($timestamp)
+
+Originally written by Per Bothner.
+Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
+Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+  case $1 in
+    --time-stamp | --time* | -t )
+       echo "$timestamp" ; exit 0 ;;
+    --version | -v )
+       echo "$version" ; exit 0 ;;
+    --help | --h* | -h )
+       echo "$usage"; exit 0 ;;
+    -- )     # Stop option processing
+       shift; break ;;
+    - )	# Use stdin as input.
+       break ;;
+    -* )
+       echo "$me: invalid option $1$help" >&2
+       exit 1 ;;
+    * )
+       break ;;
+  esac
+done
+
+if test $# != 0; then
+  echo "$me: too many arguments$help" >&2
+  exit 1
+fi
+
+trap 'exit 1' 1 2 15
+
+# CC_FOR_BUILD -- compiler used by this script. Note that the use of a
+# compiler to aid in system detection is discouraged as it requires
+# temporary files to be created and, as you can see below, it is a
+# headache to deal with in a portable fashion.
+
+# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still
+# use `HOST_CC' if defined, but it is deprecated.
+
+# Portable tmp directory creation inspired by the Autoconf team.
+
+set_cc_for_build='
+trap "exitcode=\$?; (rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null) && exit \$exitcode" 0 ;
+trap "rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null; exit 1" 1 2 13 15 ;
+: ${TMPDIR=/tmp} ;
+ { tmp=`(umask 077 && mktemp -d -q "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" ; } ||
+ { test -n "$RANDOM" && tmp=$TMPDIR/cg$$-$RANDOM && (umask 077 && mkdir $tmp) ; } ||
+ { tmp=$TMPDIR/cg-$$ && (umask 077 && mkdir $tmp) && echo "Warning: creating insecure temp directory" >&2 ; } ||
+ { echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; } ;
+dummy=$tmp/dummy ;
+tmpfiles="$dummy.c $dummy.o $dummy.rel $dummy" ;
+case $CC_FOR_BUILD,$HOST_CC,$CC in
+ ,,)    echo "int x;" > $dummy.c ;
+	for c in cc gcc c89 c99 ; do
+	  if ($c -c -o $dummy.o $dummy.c) >/dev/null 2>&1 ; then
+	     CC_FOR_BUILD="$c"; break ;
+	  fi ;
+	done ;
+	if test x"$CC_FOR_BUILD" = x ; then
+	  CC_FOR_BUILD=no_compiler_found ;
+	fi
+	;;
+ ,,*)   CC_FOR_BUILD=$CC ;;
+ ,*,*)  CC_FOR_BUILD=$HOST_CC ;;
+esac ;'
+
+# This is needed to find uname on a Pyramid OSx when run in the BSD universe.
+# (ghazi@noc.rutgers.edu 1994-08-24)
+if (test -f /.attbin/uname) >/dev/null 2>&1 ; then
+	PATH=$PATH:/.attbin ; export PATH
+fi
+
+UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown
+UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
+UNAME_SYSTEM=`(uname -s) 2>/dev/null`  || UNAME_SYSTEM=unknown
+UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
+
+# Note: order is significant - the case branches are not exclusive.
+
+case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
+    *:NetBSD:*:*)
+	# NetBSD (nbsd) targets should (where applicable) match one or
+	# more of the tuples: *-*-netbsdelf*, *-*-netbsdaout*,
+	# *-*-netbsdecoff* and *-*-netbsd*.  For targets that recently
+	# switched to ELF, *-*-netbsd* would select the old
+	# object file format.  This provides both forward
+	# compatibility and a consistent mechanism for selecting the
+	# object file format.
+	#
+	# Note: NetBSD doesn't particularly care about the vendor
+	# portion of the name.  We always set it to "unknown".
+	sysctl="sysctl -n hw.machine_arch"
+	UNAME_MACHINE_ARCH=`(/sbin/$sysctl 2>/dev/null || \
+	    /usr/sbin/$sysctl 2>/dev/null || echo unknown)`
+	case "${UNAME_MACHINE_ARCH}" in
+	    armeb) machine=armeb-unknown ;;
+	    arm*) machine=arm-unknown ;;
+	    sh3el) machine=shl-unknown ;;
+	    sh3eb) machine=sh-unknown ;;