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1# iperf, Copyright (c) 2014-2020, The Regents of the University of
2# California, through Lawrence Berkeley National Laboratory (subject
3# to receipt of any required approvals from the U.S. Dept. of
4# Energy).  All rights reserved.
5#
6# If you have questions about your rights to use or distribute this
7# software, please contact Berkeley Lab's Technology Transfer
8# Department at TTD@lbl.gov.
9#
10# NOTICE.  This software is owned by the U.S. Department of Energy.
11# As such, the U.S. Government has been granted for itself and others
12# acting on its behalf a paid-up, nonexclusive, irrevocable,
13# worldwide license in the Software to reproduce, prepare derivative
14# works, and perform publicly and display publicly.  Beginning five
15# (5) years after the date permission to assert copyright is obtained
16# from the U.S. Department of Energy, and subject to any subsequent
17# five (5) year renewals, the U.S. Government is granted for itself
18# and others acting on its behalf a paid-up, nonexclusive,
19# irrevocable, worldwide license in the Software to reproduce,
20# prepare derivative works, distribute copies to the public, perform
21# publicly and display publicly, and to permit others to do so.
22#
23# This code is distributed under a BSD style license, see the LICENSE
24# file for complete information.
25
26# Initialize the autoconf system for the specified tool, version and mailing list
27AC_INIT(iperf, 3.9, https://github.com/esnet/iperf, iperf, https://software.es.net/iperf/)
28m4_include([config/ax_check_openssl.m4])
29m4_include([config/iperf_config_static_bin.m4])
30AC_LANG(C)
31
32# Specify where the auxiliary files created by configure should go. The config
33# directory is picked so that they don't clutter up more useful directories.
34AC_CONFIG_AUX_DIR(config)
35
36
37# Initialize the automake system
38AM_INIT_AUTOMAKE([foreign])
39m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
40LT_INIT
41
42AM_MAINTAINER_MODE
43AM_CONFIG_HEADER(src/iperf_config.h)
44
45AC_CANONICAL_HOST
46
47# Checks for tools: c compiler, ranlib (used for creating static libraries),
48# symlinks and libtool
49AC_PROG_CC
50AC_PROG_RANLIB
51AC_PROG_LN_S
52AC_PROG_LIBTOOL
53
54# Add -Wall if we are using GCC.
55if test "x$GCC" = "xyes"; then
56  CFLAGS="$CFLAGS -Wall"
57fi
58
59# Check if enable profiling
60AC_ARG_ENABLE([profiling],
61    AS_HELP_STRING([--enable-profiling], [Enable iperf3 profiling binary]))
62AM_CONDITIONAL([ENABLE_PROFILING], [test x$enable_profiling = xyes])
63
64# Checks for header files.
65AC_HEADER_STDC
66
67# Check for systems which need -lsocket and -lnsl
68#AX_LIB_SOCKET_NSL
69
70# Check for the math library (needed by cjson on some platforms)
71AC_SEARCH_LIBS(floor, [m], [], [
72echo "floor()"
73exit 1
74])
75
76# On illumos we need -lsocket
77AC_SEARCH_LIBS(socket, [socket], [], [
78echo "socket()"
79exit 1
80])
81
82# On illumos inet_ntop in in -lnsl
83AC_SEARCH_LIBS(inet_ntop, [nsl], [], [
84echo "inet_ntop()"
85exit 1
86])
87
88# Checks for typedefs, structures, and compiler characteristics.
89AC_C_CONST
90
91# Check for poll.h (it's in POSIX so everyone should have it?)
92AC_CHECK_HEADERS([poll.h])
93
94# SCTP.  Allow user to disable SCTP support with --without-sctp.
95# Otherwise we try to find whatever support is required.
96try_sctp=true
97AC_ARG_WITH([sctp],
98    [AS_HELP_STRING([--without-sctp],
99        [disable SCTP])],
100    [
101        case "$withval" in
102	y | ye | yes)
103	  ;;
104	n | no)
105	try_sctp=false
106	  ;;
107	*)
108	AC_MSG_ERROR([Invalid --with-sctp value])
109	  ;;
110	esac
111    ], [
112        try_sctp=true
113    ]
114)
115
116# Check for SCTP support
117if $try_sctp; then
118AC_CHECK_HEADERS([sys/socket.h])
119AC_CHECK_HEADERS([netinet/sctp.h],
120		 AC_DEFINE([HAVE_SCTP_H], [1], [Have SCTP support.])
121		 AC_SEARCH_LIBS(sctp_bindx, [sctp])
122		 AC_CHECK_TYPES([struct sctp_assoc_value], [], [],
123				[[#include <netinet/sctp.h>]]),
124		 [],
125		 [#ifdef HAVE_SYS_SOCKET_H
126#include <sys/socket.h>
127#endif
128])
129fi
130
131AC_CHECK_HEADER([endian.h],
132		AC_DEFINE([HAVE_ENDIAN_H], [1], [Define to 1 if you have the <endian.h> header file.]),
133		AC_CHECK_HEADER([sys/endian.h],
134				AC_DEFINE([HAVE_SYS_ENDIAN_H], [1], [Define to 1 if you have the <sys/endian.h> header file.]),
135				AC_MSG_WARN([Couldn't find endian.h or sys/endian.h files: doing compile-time tests.])
136				)
137		)
138
139if test "x$with_openssl" = "xno"; then
140    AC_MSG_WARN( [Building without OpenSSL; disabling iperf_auth functionality.] )
141else
142    # Check for OPENSSL support
143    havs_ssl=false
144    AX_CHECK_OPENSSL(
145        [ AC_DEFINE([HAVE_SSL], [1], [OpenSSL Is Available])
146          have_ssl=true ],
147	[ if test "x$with_openssl" != "x"; then
148	  AC_MSG_FAILURE([--with-openssl was given, but test for OpenSSL failed])
149	  fi ]
150    )
151    if $have_ssl; then
152        case $host in
153           *-*-cygwin)
154             CFLAGS="$CFLAGS -DNOCRYPT"
155             ;;
156        esac
157        LDFLAGS="$LDFLAGS $OPENSSL_LDFLAGS"
158        LIBS="$OPENSSL_LIBS $LIBS"
159        CPPFLAGS="$OPENSSL_INCLUDES $CPPFLAGS"
160    fi
161fi
162
163# Check for TCP_CONGESTION sockopt (believed to be Linux and FreeBSD only)
164AC_CACHE_CHECK([TCP_CONGESTION socket option],
165[iperf3_cv_header_tcp_congestion],
166AC_EGREP_CPP(yes,
167[#include <netinet/tcp.h>
168#ifdef TCP_CONGESTION
169  yes
170#endif
171],iperf3_cv_header_tcp_congestion=yes,iperf3_cv_header_tcp_congestion=no))
172if test "x$iperf3_cv_header_tcp_congestion" = "xyes"; then
173    AC_DEFINE([HAVE_TCP_CONGESTION], [1], [Have TCP_CONGESTION sockopt.])
174fi
175
176# Check for IPv6 flowlabel support (believed to be Linux only)
177# We check for IPV6_FLOWLABEL_MGR in <linux/in6.h> even though we
178# don't use that file directly (we have our own stripped-down
179# copy, see src/flowlabel.h for more details).
180AC_CACHE_CHECK([IPv6 flowlabel support],
181[iperf3_cv_header_flowlabel],
182AC_EGREP_CPP(yes,
183[#include <sys/types.h>
184#include <linux/in6.h>
185#ifdef IPV6_FLOWLABEL_MGR
186  yes
187#endif
188],iperf3_cv_header_flowlabel=yes,iperf3_cv_header_flowlabel=no))
189if test "x$iperf3_cv_header_flowlabel" = "xyes"; then
190    AC_DEFINE([HAVE_FLOWLABEL], [1], [Have IPv6 flowlabel support.])
191fi
192
193# Check for CPU affinity support.  FreeBSD and Linux do this differently
194# unfortunately so we have to check separately for each of them.
195# FreeBSD uses cpuset_setaffinity while Linux uses sched_setaffinity.
196# Define HAVE_CPU_AFFINITY to indicate the CPU affinity setting as a
197# generic concept is available.
198AC_CHECK_FUNCS([cpuset_setaffinity sched_setaffinity SetProcessAffinityMask],
199	       AC_DEFINE([HAVE_CPU_AFFINITY], [1],
200	 	         [Have CPU affinity support.]))
201
202# Check for daemon().  Most systems have this but a few (IRIX) don't.
203AC_CHECK_FUNCS([daemon])
204
205# Check for sendfile support.  FreeBSD, Linux, and MacOS all support
206# this system call, but they're all different in terms of what headers
207# it needs and what arguments it expects.
208AC_CHECK_FUNCS([sendfile])
209
210# Check for getline support, used as a part of authenticated
211# connections.
212AC_CHECK_FUNCS([getline])
213
214# Check for packet pacing socket option (Linux only for now).
215AC_CACHE_CHECK([SO_MAX_PACING_RATE socket option],
216[iperf3_cv_header_so_max_pacing_rate],
217AC_EGREP_CPP(yes,
218[#include <sys/socket.h>
219#ifdef SO_MAX_PACING_RATE
220  yes
221#endif
222],iperf3_cv_header_so_max_pacing_rate=yes,iperf3_cv_header_so_max_pacing_rate=no))
223if test "x$iperf3_cv_header_so_max_pacing_rate" = "xyes"; then
224    AC_DEFINE([HAVE_SO_MAX_PACING_RATE], [1], [Have SO_MAX_PACING_RATE sockopt.])
225fi
226
227# Check if we need -lrt for clock_gettime
228AC_SEARCH_LIBS(clock_gettime, [rt posix4])
229# Check for clock_gettime support
230AC_CHECK_FUNCS([clock_gettime])
231
232AC_OUTPUT([Makefile src/Makefile src/version.h examples/Makefile iperf3.spec])
233