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])
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.
33 AC_DEFINE(HAVE_LINUX, 1, [Linux])
37 AC_DEFINE(HAVE_FREEBSD, 1, [FreeBSD])
41 AC_DEFINE(HAVE_DARWIN, 1, [Darwin (MacOS/X)])
45 AC_DEFINE(HAVE_SOLARIS, 1, [Solaris/SunOS])
49 AC_DEFINE(HAVE_OPENBSD, 1, [OpenBSD])
53 AC_DEFINE(HAVE_NETBSD, 1, [NetBSD])
57 AC_DEFINE(HAVE_DRAGONFLY, 1, [DragonFly])
61 AC_MSG_WARN("Unknown BSD variant, tinc might not compile or work!")
62 AC_DEFINE(HAVE_BSD, 1, [Unknown BSD variant])
66 AC_DEFINE(HAVE_CYGWIN, 1, [Cygwin])
70 AC_DEFINE(HAVE_MINGW, 1, [MinGW])
71 LIBS="$LIBS -lws2_32 -lgdi32 -lcrypt32"
74 AC_MSG_ERROR("Unknown operating system.")
79 AS_HELP_STRING([--enable-uml], [enable support for User Mode Linux]),
80 [ AS_IF([test "x$enable_uml" = "xyes"],
81 [ AC_DEFINE(ENABLE_UML, 1, [Support for UML])
90 AS_HELP_STRING([--enable-vde], [enable support for Virtual Distributed Ethernet]),
91 [ AS_IF([test "x$enable_vde" = "xyes"],
92 [ AC_CHECK_HEADERS(libvdeplug_dyn.h, [], [AC_MSG_ERROR([VDE plug header files not found.]); break])
93 AC_DEFINE(ENABLE_VDE, 1, [Support for VDE])
101 AC_ARG_ENABLE(tunemu,
102 AS_HELP_STRING([--enable-tunemu], [enable support for the tunemu driver]),
103 [ AS_IF([test "x$enable_tunemu" = "xyes"],
104 [ AC_DEFINE(ENABLE_TUNEMU, 1, [Support for tunemu])
112 AC_ARG_WITH(windows2000,
113 AS_HELP_STRING([--with-windows2000], [compile with support for Windows 2000. This disables support for tunneling over existing IPv6 networks.]),
114 [ AS_IF([test "x$with_windows2000" = "xyes"],
115 [AC_DEFINE(WITH_WINDOWS2000, 1, [Compile with support for Windows 2000])])
119 AC_ARG_WITH([systemdsystemunitdir],
120 [AS_HELP_STRING([--with-systemdsystemunitdir=DIR], [Directory for systemd service files])],,
121 [with_systemdsystemunitdir=auto])
122 AS_IF([test "x$with_systemdsystemunitdir" = "xyes" -o "x$with_systemdsystemunitdir" = "xauto"], [
123 def_systemdsystemunitdir=$($PKG_CONFIG --variable=systemdsystemunitdir systemd)
125 AS_IF([test "x$def_systemdsystemunitdir" = "x"],
126 [AS_IF([test "x$with_systemdsystemunitdir" = "xyes"],
127 [AC_MSG_ERROR([systemd support requested but pkg-config unable to query systemd package])])
128 with_systemdsystemunitdir=no],
129 [with_systemdsystemunitdir="$def_systemdsystemunitdir"])])
130 AS_IF([test "x$with_systemdsystemunitdir" != "xno"],
131 [AC_SUBST([systemdsystemunitdir], [$with_systemdsystemunitdir])])
132 AM_CONDITIONAL([HAVE_SYSTEMD], [test "x$with_systemdsystemunitdir" != "xno"])
134 AM_CONDITIONAL(LINUX, test "$linux" = true)
135 AM_CONDITIONAL(BSD, test "$bsd" = true)
136 AM_CONDITIONAL(SOLARIS, test "$solaris" = true)
137 AM_CONDITIONAL(MINGW, test "$mingw" = true)
138 AM_CONDITIONAL(CYGWIN, test "$cygwin" = true)
139 AM_CONDITIONAL(UML, test "$uml" = true)
140 AM_CONDITIONAL(VDE, test "$vde" = true)
141 AM_CONDITIONAL(TUNEMU, test "$tunemu" = true)
145 if test -d /sw/include ; then
146 CPPFLAGS="$CPPFLAGS -I/sw/include"
148 if test -d /sw/lib ; then
149 LIBS="$LIBS -L/sw/lib"
152 dnl Compiler hardening flags
153 dnl No -fstack-protector-all because it doesn't work on all platforms or architectures.
155 AX_CFLAGS_WARN_ALL(CFLAGS)
157 AC_ARG_ENABLE([hardening], AS_HELP_STRING([--disable-hardening], [disable compiler and linker hardening flags]))
158 AS_IF([test "x$enable_hardening" != "xno"],
159 [AX_CHECK_COMPILE_FLAG([-DFORTIFY_SOURCE=2], [CPPFLAGS="$CPPFLAGS -DFORTIFY_SOURCE=2"])
160 AX_CHECK_COMPILE_FLAG([-fwrapv], [CPPFLAGS="$CPPFLAGS -fwrapv"],
161 AX_CHECK_COMPILE_FLAG([-fno-strict-overflow], [CPPFLAGS="$CPPFLAGS -fno-strict-overflow"]))
164 AX_CHECK_LINK_FLAG([-Wl,--dynamicbase], [LDFLAGS="$LDFLAGS -Wl,--dynamicbase"])
165 AX_CHECK_LINK_FLAG([-Wl,--nxcompat], [LDFLAGS="$LDFLAGS -Wl,--nxcompat"])
168 AX_CHECK_COMPILE_FLAG([-fPIE], [CPPFLAGS="$CPPFLAGS -fPIE"])
169 AX_CHECK_LINK_FLAG([-pie], [LDFLAGS="$LDFLAGS -pie"])
172 AX_CHECK_LINK_FLAG([-Wl,-z,relro], [LDFLAGS="$LDFLAGS -Wl,-z,relro"])
173 AX_CHECK_LINK_FLAG([-Wl,-z,now], [LDFLAGS="$LDFLAGS -Wl,-z,now"])
177 dnl Checks for libraries.
179 dnl Checks for header files.
180 dnl We do this in multiple stages, because unlike Linux all the other operating systems really suck and don't include their own dependencies.
182 AC_CHECK_HEADERS([syslog.h sys/file.h sys/ioctl.h sys/mman.h sys/param.h sys/resource.h sys/socket.h sys/time.h sys/uio.h sys/wait.h netdb.h arpa/inet.h arpa/nameser.h dirent.h getopt.h])
183 AC_CHECK_HEADERS([net/if.h net/if_types.h linux/if_tun.h net/if_tun.h net/if_utun.h net/tun/if_tun.h net/if_tap.h net/tap/if_tap.h net/ethernet.h net/if_arp.h netinet/in_systm.h netinet/in.h netinet/in6.h netpacket/packet.h],
184 [], [], [#include "$srcdir/src/have.h"]
186 AC_CHECK_HEADERS([netinet/if_ether.h netinet/ip.h netinet/ip6.h resolv.h],
187 [], [], [#include "$srcdir/src/have.h"]
189 AC_CHECK_HEADERS([netinet/tcp.h netinet/ip_icmp.h netinet/icmp6.h],
190 [], [], [#include "$srcdir/src/have.h"]
193 dnl Checks for typedefs, structures, and compiler characteristics.
196 tinc_ATTRIBUTE(__malloc__)
198 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], , ,
199 [#include "$srcdir/src/have.h"]
202 dnl Checks for library functions.
204 AC_CHECK_FUNCS([asprintf daemon fchmod flock fork gettimeofday mlockall pselect putenv strsignal system unsetenv usleep vsyslog devname fdevname],
205 [], [], [#include "$srcdir/src/have.h"]
208 AC_CHECK_FUNC(getopt_long, [getopt=true; AC_DEFINE(HAVE_GETOPT_LONG, 1, [getopt_long()])], [getopt=false])
209 AM_CONDITIONAL(GETOPT, test "$getopt" = true)
211 dnl Support for SunOS
213 AC_CHECK_FUNC(socket, [], [
214 AC_CHECK_LIB(socket, connect)
216 AC_CHECK_FUNC(gethostbyname, [], [
217 AC_CHECK_LIB(nsl, gethostbyname)
220 AC_CHECK_DECLS([freeaddrinfo, gai_strerror, getaddrinfo, getnameinfo],
221 [], [], [#include "$srcdir/src/have.h"]
224 AC_CHECK_DECLS([res_init], [AC_CHECK_LIB(resolv, res_init)], [], [
225 #include <netinet/in.h>
231 dnl These are defined in files in m4/
237 dnl Check if support for jumbograms is requested
238 AC_ARG_ENABLE(jumbograms,
239 AS_HELP_STRING([--enable-jumbograms], [enable support for jumbograms (packets up to 9000 bytes)]),
240 [ AS_IF([test "x$enable_jumbograms" = "xyes"],
241 [ AC_DEFINE(ENABLE_JUMBOGRAMS, 1, [Support for jumbograms (packets up to 9000 bytes)]) ])
245 AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile distro/Makefile])