1 dnl Process this file with autoconf to produce a configure script.
4 AC_INIT([tinc], [1.0.35])
5 AC_CONFIG_SRCDIR([src/tincd.c])
6 AM_INIT_AUTOMAKE([1.11 check-news std-options subdir-objects nostdinc silent-rules -Wall])
7 AC_CONFIG_HEADERS([config.h])
8 AC_CONFIG_MACRO_DIR([m4])
11 # Enable GNU extensions.
12 # Define this here, not in acconfig's @TOP@ section, since definitions
13 # in the latter don't make it into the configure-time tests.
15 AC_DEFINE([__USE_BSD], 1, [Enable BSD extensions])
17 dnl Checks for programs.
31 AC_DEFINE(HAVE_LINUX, 1, [Linux])
35 AC_DEFINE(HAVE_FREEBSD, 1, [FreeBSD])
39 AC_DEFINE(HAVE_DARWIN, 1, [Darwin (MacOS/X)])
43 AC_DEFINE(HAVE_SOLARIS, 1, [Solaris/SunOS])
47 AC_DEFINE(HAVE_OPENBSD, 1, [OpenBSD])
51 AC_DEFINE(HAVE_NETBSD, 1, [NetBSD])
55 AC_DEFINE(HAVE_DRAGONFLY, 1, [DragonFly])
59 AC_MSG_WARN("Unknown BSD variant, tinc might not compile or work!")
60 AC_DEFINE(HAVE_BSD, 1, [Unknown BSD variant])
64 AC_DEFINE(HAVE_CYGWIN, 1, [Cygwin])
68 AC_DEFINE(HAVE_MINGW, 1, [MinGW])
69 LIBS="$LIBS -lws2_32 -lgdi32 -lcrypt32"
72 AC_MSG_ERROR("Unknown operating system.")
77 AS_HELP_STRING([--enable-uml], [enable support for User Mode Linux]),
78 [ AS_IF([test "x$enable_uml" = "xyes"],
79 [ AC_DEFINE(ENABLE_UML, 1, [Support for UML])
88 AS_HELP_STRING([--enable-vde], [enable support for Virtual Distributed Ethernet]),
89 [ AS_IF([test "x$enable_vde" = "xyes"],
90 [ AC_CHECK_HEADERS(libvdeplug_dyn.h, [], [AC_MSG_ERROR([VDE plug header files not found.]); break])
91 AC_DEFINE(ENABLE_VDE, 1, [Support for VDE])
100 AS_HELP_STRING([--enable-tunemu], [enable support for the tunemu driver]),
101 [ AS_IF([test "x$enable_tunemu" = "xyes"],
102 [ AC_DEFINE(ENABLE_TUNEMU, 1, [Support for tunemu])
110 AC_ARG_WITH(windows2000,
111 AS_HELP_STRING([--with-windows2000], [compile with support for Windows 2000. This disables support for tunneling over existing IPv6 networks.]),
112 [ AS_IF([test "x$with_windows2000" = "xyes"],
113 [AC_DEFINE(WITH_WINDOWS2000, 1, [Compile with support for Windows 2000])])
118 AS_HELP_STRING([--with-systemd@<:@=DIR@:>@], [install systemd service files @<:@to DIR if specified@:>@]),
119 [ systemd=true; systemd_path="$with_systemd" ],
123 AS_IF([test "x$with_systemd" = "xyes"], [systemd_path="\${libdir}/systemd/system"],
124 [AS_IF([test "x$with_systemd" = "xno"], [systemd=false])])
126 AC_SUBST(systemd_path, $systemd_path)
128 AM_CONDITIONAL(LINUX, test "$linux" = true)
129 AM_CONDITIONAL(BSD, test "$bsd" = true)
130 AM_CONDITIONAL(SOLARIS, test "$solaris" = true)
131 AM_CONDITIONAL(MINGW, test "$mingw" = true)
132 AM_CONDITIONAL(CYGWIN, test "$cygwin" = true)
133 AM_CONDITIONAL(UML, test "$uml" = true)
134 AM_CONDITIONAL(VDE, test "$vde" = true)
135 AM_CONDITIONAL(TUNEMU, test "$tunemu" = true)
136 AM_CONDITIONAL(WITH_SYSTEMD, test "$systemd" = true)
140 if test -d /sw/include ; then
141 CPPFLAGS="$CPPFLAGS -I/sw/include"
143 if test -d /sw/lib ; then
144 LIBS="$LIBS -L/sw/lib"
147 dnl Compiler hardening flags
148 dnl No -fstack-protector-all because it doesn't work on all platforms or architectures.
150 AX_CFLAGS_WARN_ALL(CFLAGS)
152 AC_ARG_ENABLE([hardening], AS_HELP_STRING([--disable-hardening], [disable compiler and linker hardening flags]))
153 AS_IF([test "x$enable_hardening" != "xno"],
154 [AX_CHECK_COMPILE_FLAG([-DFORTIFY_SOURCE=2], [CPPFLAGS="$CPPFLAGS -DFORTIFY_SOURCE=2"])
155 AX_CHECK_COMPILE_FLAG([-fwrapv], [CPPFLAGS="$CPPFLAGS -fwrapv"],
156 AX_CHECK_COMPILE_FLAG([-fno-strict-overflow], [CPPFLAGS="$CPPFLAGS -fno-strict-overflow"]))
159 AX_CHECK_LINK_FLAG([-Wl,--dynamicbase], [LDFLAGS="$LDFLAGS -Wl,--dynamicbase"])
160 AX_CHECK_LINK_FLAG([-Wl,--nxcompat], [LDFLAGS="$LDFLAGS -Wl,--nxcompat"])
163 AX_CHECK_COMPILE_FLAG([-fPIE], [CPPFLAGS="$CPPFLAGS -fPIE"])
164 AX_CHECK_LINK_FLAG([-pie], [LDFLAGS="$LDFLAGS -pie"])
167 AX_CHECK_LINK_FLAG([-Wl,-z,relro], [LDFLAGS="$LDFLAGS -Wl,-z,relro"])
168 AX_CHECK_LINK_FLAG([-Wl,-z,now], [LDFLAGS="$LDFLAGS -Wl,-z,now"])
172 dnl Checks for libraries.
174 dnl Checks for header files.
175 dnl We do this in multiple stages, because unlike Linux all the other operating systems really suck and don't include their own dependencies.
177 AC_CHECK_HEADERS([syslog.h sys/file.h sys/ioctl.h sys/mman.h sys/param.h sys/resource.h sys/socket.h sys/time.h sys/uio.h sys/wait.h netdb.h arpa/inet.h arpa/nameser.h dirent.h getopt.h])
178 AC_CHECK_HEADERS([net/if.h net/if_types.h linux/if_tun.h net/if_tun.h net/if_utun.h net/tun/if_tun.h net/if_tap.h net/tap/if_tap.h net/ethernet.h net/if_arp.h netinet/in_systm.h netinet/in.h netinet/in6.h netpacket/packet.h],
179 [], [], [#include "$srcdir/src/have.h"]
181 AC_CHECK_HEADERS([netinet/if_ether.h netinet/ip.h netinet/ip6.h resolv.h],
182 [], [], [#include "$srcdir/src/have.h"]
184 AC_CHECK_HEADERS([netinet/tcp.h netinet/ip_icmp.h netinet/icmp6.h],
185 [], [], [#include "$srcdir/src/have.h"]
188 dnl Checks for typedefs, structures, and compiler characteristics.
191 tinc_ATTRIBUTE(__malloc__)
193 AC_CHECK_TYPES([socklen_t, struct ether_header, struct arphdr, struct ether_arp, struct in_addr, struct addrinfo, struct ip, struct icmp, struct in6_addr, struct sockaddr_in6, struct ip6_hdr, struct icmp6_hdr, struct nd_neighbor_solicit, struct nd_opt_hdr], , ,
194 [#include "$srcdir/src/have.h"]
197 dnl Checks for library functions.
199 AC_CHECK_FUNCS([asprintf daemon fchmod flock fork gettimeofday mlockall pselect putenv strsignal system unsetenv usleep vsyslog devname fdevname],
200 [], [], [#include "$srcdir/src/have.h"]
203 AC_CHECK_FUNC(getopt_long, [getopt=true; AC_DEFINE(HAVE_GETOPT_LONG, 1, [getopt_long()])], [getopt=false])
204 AM_CONDITIONAL(GETOPT, test "$getopt" = true)
206 dnl Support for SunOS
208 AC_CHECK_FUNC(socket, [], [
209 AC_CHECK_LIB(socket, connect)
211 AC_CHECK_FUNC(gethostbyname, [], [
212 AC_CHECK_LIB(nsl, gethostbyname)
215 AC_CHECK_DECLS([freeaddrinfo, gai_strerror, getaddrinfo, getnameinfo],
216 [], [], [#include "$srcdir/src/have.h"]
219 AC_CHECK_DECLS([res_init], [AC_CHECK_LIB(resolv, res_init)], [], [
220 #include <netinet/in.h>
226 dnl These are defined in files in m4/
232 dnl Check if support for jumbograms is requested
233 AC_ARG_ENABLE(jumbograms,
234 AS_HELP_STRING([--enable-jumbograms], [enable support for jumbograms (packets up to 9000 bytes)]),
235 [ AS_IF([test "x$enable_jumbograms" = "xyes"],
236 [ AC_DEFINE(ENABLE_JUMBOGRAMS, 1, [Support for jumbograms (packets up to 9000 bytes)]) ])
240 dnl Ensure runstatedir is set if we are using a version of autoconf that does not suppport it
241 if test "x$runstatedir" = "x"; then
242 AC_SUBST([runstatedir], ['${localstatedir}/run'])
245 AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile systemd/Makefile])