1 dnl Process this file with autoconf to produce a configure script.
4 AC_INIT([tinc], [1.0.32])
5 AC_CONFIG_SRCDIR([src/tincd.c])
6 AM_INIT_AUTOMAKE([1.11 check-news std-options subdir-objects nostdinc silent-rules -Wall info-in-builddir])
7 AC_CONFIG_HEADERS([config.h])
8 AC_CONFIG_MACRO_DIR([m4])
10 AM_SILENT_RULES([yes])
12 # Enable GNU extensions.
13 # Define this here, not in acconfig's @TOP@ section, since definitions
14 # in the latter don't make it into the configure-time tests.
16 AC_DEFINE([__USE_BSD], 1, [Enable BSD extensions])
18 dnl Checks for programs.
34 AC_DEFINE(HAVE_LINUX, 1, [Linux])
38 AC_DEFINE(HAVE_FREEBSD, 1, [FreeBSD])
42 AC_DEFINE(HAVE_DARWIN, 1, [Darwin (MacOS/X)])
46 AC_DEFINE(HAVE_SOLARIS, 1, [Solaris/SunOS])
50 AC_DEFINE(HAVE_OPENBSD, 1, [OpenBSD])
54 AC_DEFINE(HAVE_NETBSD, 1, [NetBSD])
58 AC_DEFINE(HAVE_DRAGONFLY, 1, [DragonFly])
62 AC_MSG_WARN("Unknown BSD variant, tinc might not compile or work!")
63 AC_DEFINE(HAVE_BSD, 1, [Unknown BSD variant])
67 AC_DEFINE(HAVE_CYGWIN, 1, [Cygwin])
71 AC_DEFINE(HAVE_MINGW, 1, [MinGW])
72 LIBS="$LIBS -lws2_32 -lgdi32 -lcrypt32"
75 AC_MSG_ERROR("Unknown operating system.")
80 AS_HELP_STRING([--enable-uml], [enable support for User Mode Linux]),
81 [ AS_IF([test "x$enable_uml" = "xyes"],
82 [ AC_DEFINE(ENABLE_UML, 1, [Support for UML])
91 AS_HELP_STRING([--enable-vde], [enable support for Virtual Distributed Ethernet]),
92 [ AS_IF([test "x$enable_vde" = "xyes"],
93 [ AC_CHECK_HEADERS(libvdeplug_dyn.h, [], [AC_MSG_ERROR([VDE plug header files not found.]); break])
94 AC_DEFINE(ENABLE_VDE, 1, [Support for VDE])
102 AC_ARG_ENABLE(tunemu,
103 AS_HELP_STRING([--enable-tunemu], [enable support for the tunemu driver]),
104 [ AS_IF([test "x$enable_tunemu" = "xyes"],
105 [ AC_DEFINE(ENABLE_TUNEMU, 1, [Support for tunemu])
113 AC_ARG_WITH(windows2000,
114 AS_HELP_STRING([--with-windows2000], [compile with support for Windows 2000. This disables support for tunneling over existing IPv6 networks.]),
115 [ AS_IF([test "x$with_windows2000" = "xyes"],
116 [AC_DEFINE(WITH_WINDOWS2000, 1, [Compile with support for Windows 2000])])
120 AC_ARG_WITH([systemdsystemunitdir],
121 [AS_HELP_STRING([--with-systemdsystemunitdir=DIR], [Directory for systemd service files])],,
122 [with_systemdsystemunitdir=auto])
123 AS_IF([test "x$with_systemdsystemunitdir" = "xyes" -o "x$with_systemdsystemunitdir" = "xauto"], [
124 def_systemdsystemunitdir=$($PKG_CONFIG --variable=systemdsystemunitdir systemd)
126 AS_IF([test "x$def_systemdsystemunitdir" = "x"],
127 [AS_IF([test "x$with_systemdsystemunitdir" = "xyes"],
128 [AC_MSG_ERROR([systemd support requested but pkg-config unable to query systemd package])])
129 with_systemdsystemunitdir=no],
130 [with_systemdsystemunitdir="$def_systemdsystemunitdir"])])
131 AS_IF([test "x$with_systemdsystemunitdir" != "xno"],
132 [AC_SUBST([systemdsystemunitdir], [$with_systemdsystemunitdir])])
133 AM_CONDITIONAL([HAVE_SYSTEMD], [test "x$with_systemdsystemunitdir" != "xno"])
135 AM_CONDITIONAL(LINUX, test "$linux" = true)
136 AM_CONDITIONAL(BSD, test "$bsd" = true)
137 AM_CONDITIONAL(SOLARIS, test "$solaris" = true)
138 AM_CONDITIONAL(MINGW, test "$mingw" = true)
139 AM_CONDITIONAL(CYGWIN, test "$cygwin" = true)
140 AM_CONDITIONAL(UML, test "$uml" = true)
141 AM_CONDITIONAL(VDE, test "$vde" = true)
142 AM_CONDITIONAL(TUNEMU, test "$tunemu" = true)
146 if test -d /sw/include ; then
147 CPPFLAGS="$CPPFLAGS -I/sw/include"
149 if test -d /sw/lib ; then
150 LIBS="$LIBS -L/sw/lib"
153 dnl Compiler hardening flags
154 dnl No -fstack-protector-all because it doesn't work on all platforms or architectures.
156 AX_CFLAGS_WARN_ALL(CFLAGS)
158 AC_ARG_ENABLE([hardening], AS_HELP_STRING([--disable-hardening], [disable compiler and linker hardening flags]))
159 AS_IF([test "x$enable_hardening" != "xno"],
160 [AX_CHECK_COMPILE_FLAG([-DFORTIFY_SOURCE=2], [CPPFLAGS="$CPPFLAGS -DFORTIFY_SOURCE=2"])
161 AX_CHECK_COMPILE_FLAG([-fwrapv], [CPPFLAGS="$CPPFLAGS -fwrapv"],
162 AX_CHECK_COMPILE_FLAG([-fno-strict-overflow], [CPPFLAGS="$CPPFLAGS -fno-strict-overflow"]))
165 AX_CHECK_LINK_FLAG([-Wl,--dynamicbase], [LDFLAGS="$LDFLAGS -Wl,--dynamicbase"])
166 AX_CHECK_LINK_FLAG([-Wl,--nxcompat], [LDFLAGS="$LDFLAGS -Wl,--nxcompat"])
169 AX_CHECK_COMPILE_FLAG([-fPIE], [CPPFLAGS="$CPPFLAGS -fPIE"])
170 AX_CHECK_LINK_FLAG([-pie], [LDFLAGS="$LDFLAGS -pie"])
173 AX_CHECK_LINK_FLAG([-Wl,-z,relro], [LDFLAGS="$LDFLAGS -Wl,-z,relro"])
174 AX_CHECK_LINK_FLAG([-Wl,-z,now], [LDFLAGS="$LDFLAGS -Wl,-z,now"])
178 dnl Checks for libraries.
180 dnl Checks for header files.
181 dnl We do this in multiple stages, because unlike Linux all the other operating systems really suck and don't include their own dependencies.
183 save_CPPFLAGS="$CPPFLAGS"
184 CPPFLAGS="$CPPFLAGS -I${srcdir}"
186 AC_CHECK_HEADERS([stdbool.h syslog.h sys/file.h sys/ioctl.h sys/mman.h sys/param.h sys/resource.h sys/socket.h sys/time.h time.h sys/uio.h sys/wait.h netdb.h arpa/inet.h arpa/nameser.h dirent.h getopt.h])
187 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],
188 [], [], [#include "src/have.h"]
190 AC_CHECK_HEADERS([netinet/if_ether.h netinet/ip.h netinet/ip6.h resolv.h],
191 [], [], [#include "src/have.h"]
193 AC_CHECK_HEADERS([netinet/tcp.h netinet/ip_icmp.h netinet/icmp6.h],
194 [], [], [#include "src/have.h"]
197 dnl Checks for typedefs, structures, and compiler characteristics.
205 tinc_ATTRIBUTE(__malloc__)
207 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], , ,
208 [#include "src/have.h"]
211 dnl Checks for library functions.
213 AC_CHECK_FUNCS([asprintf daemon fchmod flock ftime fork get_current_dir_name gettimeofday mlockall pselect putenv random select strdup strerror strsignal strtol system unsetenv usleep vsyslog writev devname fdevname],
214 [], [], [#include "src/have.h"]
217 AC_CHECK_FUNC(getopt_long, [getopt=true; AC_DEFINE(HAVE_GETOPT_LONG, 1, [getopt_long()])], [getopt=false])
218 AM_CONDITIONAL(GETOPT, test "$getopt" = true)
220 dnl Support for SunOS
222 AC_CHECK_FUNC(socket, [], [
223 AC_CHECK_LIB(socket, connect)
225 AC_CHECK_FUNC(gethostbyname, [], [
226 AC_CHECK_LIB(nsl, gethostbyname)
229 AC_CHECK_DECLS([freeaddrinfo, gai_strerror, getaddrinfo, getnameinfo],
230 [], [], [#include "src/have.h"]
233 CPPFLAGS="$save_CPPFLAGS"
235 AC_CHECK_DECLS([res_init], [AC_CHECK_LIB(resolv, res_init)], [], [
236 #include <netinet/in.h>
242 dnl These are defined in files in m4/
248 dnl Check if support for jumbograms is requested
249 AC_ARG_ENABLE(jumbograms,
250 AS_HELP_STRING([--enable-jumbograms], [enable support for jumbograms (packets up to 9000 bytes)]),
251 [ AS_IF([test "x$enable_jumbograms" = "xyes"],
252 [ AC_DEFINE(ENABLE_JUMBOGRAMS, 1, [Support for jumbograms (packets up to 9000 bytes)]) ])
256 AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile distro/Makefile])