# iperf, Copyright (c) 2014-2018, The Regents of the University of

# California, through Lawrence Berkeley National Laboratory (subject

# to receipt of any required approvals from the U.S. Dept. of

# Energy).  All rights reserved.

#

# If you have questions about your rights to use or distribute this

# software, please contact Berkeley Lab's Technology Transfer

# Department at TTD@lbl.gov.

#

# NOTICE.  This software is owned by the U.S. Department of Energy.

# As such, the U.S. Government has been granted for itself and others

# acting on its behalf a paid-up, nonexclusive, irrevocable,

# worldwide license in the Software to reproduce, prepare derivative

# works, and perform publicly and display publicly.  Beginning five

# (5) years after the date permission to assert copyright is obtained

# from the U.S. Department of Energy, and subject to any subsequent

# five (5) year renewals, the U.S. Government is granted for itself

# and others acting on its behalf a paid-up, nonexclusive,

# irrevocable, worldwide license in the Software to reproduce,

# prepare derivative works, distribute copies to the public, perform

# publicly and display publicly, and to permit others to do so.

#

# This code is distributed under a BSD style license, see the LICENSE

# file for complete information.

# Initialize the autoconf system for the specified tool, version and mailing list

AC_INIT(iperf, 3.5, https://github.com/esnet/iperf, iperf, http://software.es.net/iperf/)

m4_include([config/ax_check_openssl.m4])

AC_LANG(C)

# Specify where the auxiliary files created by configure should go. The config

# directory is picked so that they don't clutter up more useful directories.

AC_CONFIG_AUX_DIR(config)

# Initialize the automake system

AM_INIT_AUTOMAKE

AM_MAINTAINER_MODE

AM_CONFIG_HEADER(src/iperf_config.h)

AC_CANONICAL_HOST

# Checks for tools: c compiler, ranlib (used for creating static libraries),

# symlinks and libtool

AC_PROG_CC

AC_PROG_RANLIB

AC_PROG_LN_S

AC_PROG_LIBTOOL

# Add -Wall if we are using GCC.

if test "x$GCC" = "xyes"; then

  CFLAGS="$CFLAGS -Wall"

fi

# Checks for header files.

AC_HEADER_STDC

# Check for systems which need -lsocket and -lnsl

#AX_LIB_SOCKET_NSL

# Check for the math library (needed by cjson on some platforms)

AC_SEARCH_LIBS(floor, [m], [], [

echo "floor()"

exit 1

])

# On illumos we need -lsocket

AC_SEARCH_LIBS(socket, [socket], [], [

echo "socket()"

exit 1

])

# On illumos inet_ntop in in -lnsl

AC_SEARCH_LIBS(inet_ntop, [nsl], [], [

echo "inet_ntop()"

exit 1

])

# Checks for typedefs, structures, and compiler characteristics.

AC_C_CONST

# Check for poll.h (it's in POSIX so everyone should have it?)

AC_CHECK_HEADERS([poll.h])

# Check for SCTP support

AC_CHECK_HEADERS([sys/socket.h])

AC_CHECK_HEADERS([netinet/sctp.h],

		 AC_DEFINE([HAVE_SCTP], [1], [Have SCTP support.])

		 AC_SEARCH_LIBS(sctp_bindx, [sctp])

		 AC_CHECK_TYPES([struct sctp_assoc_value], [], [],

				[[#include <netinet/sctp.h>]]),

		 [],

		 [#ifdef HAVE_SYS_SOCKET_H

#include <sys/socket.h>

#endif

])

AC_CHECK_HEADER([endian.h],

		AC_DEFINE([HAVE_ENDIAN_H], [1], [Define to 1 if you have the <endian.h> header file.]),

		AC_CHECK_HEADER([sys/endian.h],

				AC_DEFINE([HAVE_SYS_ENDIAN_H], [1], [Define to 1 if you have the <sys/endian.h> header file.]),

				AC_MSG_WARN([Couldn't find endian.h or sys/endian.h files: doing compile-time tests.])

				)

		)

if test "x$with_openssl" = "xno"; then

    AC_MSG_WARN( [Building without OpenSSL; disabling iperf_auth functionality.] )

else

    # Check for OPENSSL support

    AX_CHECK_OPENSSL(

        [ AC_DEFINE([HAVE_SSL], [1], [OpenSSL Is Available]) ],

	[ if test "x$with_openssl" != "x"; then

	  AC_MSG_FAILURE([--with-openssl was given, but test for OpenSSL failed])

	  fi ]

    )

    LDFLAGS="$LDFLAGS $OPENSSL_LDFLAGS"

    LIBS="$OPENSSL_LIBS $LIBS"

    CPPFLAGS="$OPENSSL_INCLUDES $CPPFLAGS"

fi

# Check for TCP_CONGESTION sockopt (believed to be Linux and FreeBSD only)

AC_CACHE_CHECK([TCP_CONGESTION socket option],

[iperf3_cv_header_tcp_congestion],

AC_EGREP_CPP(yes,

[#include <netinet/tcp.h>

#ifdef TCP_CONGESTION

  yes

#endif

],iperf3_cv_header_tcp_congestion=yes,iperf3_cv_header_tcp_congestion=no))

if test "x$iperf3_cv_header_tcp_congestion" = "xyes"; then

    AC_DEFINE([HAVE_TCP_CONGESTION], [1], [Have TCP_CONGESTION sockopt.])

fi

# Check for IPv6 flowlabel support (believed to be Linux only)

# We check for IPV6_FLOWLABEL_MGR in <linux/in6.h> even though we

# don't use that file directly (we have our own stripped-down

# copy, see src/flowlabel.h for more details).

AC_CACHE_CHECK([IPv6 flowlabel support],

[iperf3_cv_header_flowlabel],

AC_EGREP_CPP(yes,

[#include <sys/types.h>

#include <linux/in6.h>

#ifdef IPV6_FLOWLABEL_MGR

  yes

#endif

],iperf3_cv_header_flowlabel=yes,iperf3_cv_header_flowlabel=no))

if test "x$iperf3_cv_header_flowlabel" = "xyes"; then

    AC_DEFINE([HAVE_FLOWLABEL], [1], [Have IPv6 flowlabel support.])

fi

# Check for CPU affinity support.  FreeBSD and Linux do this differently

# unfortunately so we have to check separately for each of them.

# FreeBSD uses cpuset_setaffinity while Linux uses sched_setaffinity.

# Define HAVE_CPU_AFFINITY to indicate the CPU affinity setting as a

# generic concept is available.

AC_CHECK_FUNCS([cpuset_setaffinity sched_setaffinity SetProcessAffinityMask],

	       AC_DEFINE([HAVE_CPU_AFFINITY], [1], 

	 	         [Have CPU affinity support.]))

# Check for daemon().  Most systems have this but a few (IRIX) don't.

AC_CHECK_FUNCS([daemon])

# Check for sendfile support.  FreeBSD, Linux, and MacOS all support

# this system call, but they're all different in terms of what headers

# it needs and what arguments it expects.

AC_CHECK_FUNCS([sendfile])

# Check for getline support, used as a part of authenticated

# connections.

AC_CHECK_FUNCS([getline])

# Check for packet pacing socket option (Linux only for now).

AC_CACHE_CHECK([SO_MAX_PACING_RATE socket option],

[iperf3_cv_header_so_max_pacing_rate],

AC_EGREP_CPP(yes,

[#include <sys/socket.h>

#ifdef SO_MAX_PACING_RATE

  yes

#endif

],iperf3_cv_header_so_max_pacing_rate=yes,iperf3_cv_header_so_max_pacing_rate=no))

if test "x$iperf3_cv_header_so_max_pacing_rate" = "xyes"; then

    AC_DEFINE([HAVE_SO_MAX_PACING_RATE], [1], [Have SO_MAX_PACING_RATE sockopt.])

fi

AC_OUTPUT([Makefile src/Makefile src/version.h examples/Makefile iperf3.spec])