1 dnl Process this file with autoconf to produce a configure script.
4 AC_INIT([tinc], [1.0.27])
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])
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="$LIBS -L/sw/lib"
152 dnl Compiler hardening flags
153 dnl No -fstack-protector-all because it doesn't work on all platforms or architectures.
155 AC_ARG_ENABLE([hardening], AS_HELP_STRING([--disable-hardening], [disable compiler and linker hardening flags]))
156 AS_IF([test "x$enable_hardening" != "xno"],
157 [AX_CHECK_COMPILE_FLAG([-DFORTIFY_SOURCE=2], [CPPFLAGS="$CPPFLAGS -DFORTIFY_SOURCE=2"])
158 AX_CHECK_COMPILE_FLAG([-fwrapv], [CPPFLAGS="$CPPFLAGS -fwrapv"],
159 AX_CHECK_COMPILE_FLAG([-fno-strict-overflow], [CPPFLAGS="$CPPFLAGS -fno-strict-overflow"]))
162 AX_CHECK_LINK_FLAG([-Wl,--dynamicbase], [LDFLAGS="$LDFLAGS -Wl,--dynamicbase"])
163 AX_CHECK_LINK_FLAG([-Wl,--nxcompat], [LDFLAGS="$LDFLAGS -Wl,--nxcompat"])
166 AX_CHECK_COMPILE_FLAG([-fPIE], [CPPFLAGS="$CPPFLAGS -fPIE"])
167 AX_CHECK_LINK_FLAG([-pie], [LDFLAGS="$LDFLAGS -pie"])
170 AX_CHECK_LINK_FLAG([-Wl,-z,relro], [LDFLAGS="$LDFLAGS -Wl,-z,relro"])
171 AX_CHECK_LINK_FLAG([-Wl,-z,now], [LDFLAGS="$LDFLAGS -Wl,-z,now"])
175 dnl Checks for libraries.
177 dnl Checks for header files.
178 dnl We do this in multiple stages, because unlike Linux all the other operating systems really suck and don't include their own dependencies.
181 AC_CHECK_HEADERS([stdbool.h syslog.h sys/file.h sys/ioctl.h sys/mman.h sys/param.h sys/resource.h sys/socket.h sys/time.h time.h sys/uio.h sys/wait.h netdb.h arpa/inet.h arpa/nameser.h dirent.h getopt.h])
182 AC_CHECK_HEADERS([net/if.h net/if_types.h linux/if_tun.h net/if_tun.h net/if_utun.h net/tun/if_tun.h net/if_tap.h net/tap/if_tap.h net/ethernet.h net/if_arp.h netinet/in_systm.h netinet/in.h netinet/in6.h netpacket/packet.h],
183 [], [], [#include "src/have.h"]
185 AC_CHECK_HEADERS([netinet/if_ether.h netinet/ip.h netinet/ip6.h resolv.h],
186 [], [], [#include "src/have.h"]
188 AC_CHECK_HEADERS([netinet/tcp.h netinet/ip_icmp.h netinet/icmp6.h],
189 [], [], [#include "src/have.h"]
192 dnl Checks for typedefs, structures, and compiler characteristics.
200 tinc_ATTRIBUTE(__malloc__)
202 AC_CHECK_TYPES([socklen_t, struct ether_header, struct arphdr, struct ether_arp, struct in_addr, struct addrinfo, struct ip, struct icmp, struct in6_addr, struct sockaddr_in6, struct ip6_hdr, struct icmp6_hdr, struct nd_neighbor_solicit, struct nd_opt_hdr], , ,
203 [#include "src/have.h"]
206 dnl Checks for library functions.
208 AC_CHECK_FUNCS([asprintf daemon fchmod flock ftime fork get_current_dir_name gettimeofday mlockall pselect putenv random select strdup strerror strsignal strtol system unsetenv usleep vsyslog writev devname fdevname],
209 [], [], [#include "src/have.h"]
212 AC_CHECK_FUNC(getopt_long, [getopt=true; AC_DEFINE(HAVE_GETOPT_LONG, 1, [getopt_long()])], [getopt=false])
213 AM_CONDITIONAL(GETOPT, test "$getopt" = true)
215 dnl Support for SunOS
217 AC_CHECK_FUNC(socket, [], [
218 AC_CHECK_LIB(socket, connect)
220 AC_CHECK_FUNC(gethostbyname, [], [
221 AC_CHECK_LIB(nsl, gethostbyname)
224 AC_CHECK_DECLS([freeaddrinfo, gai_strerror, getaddrinfo, getnameinfo],
225 [], [], [#include "src/have.h"]
228 AC_CHECK_DECLS([res_init], [AC_CHECK_LIB(resolv, res_init)], [], [
229 #include <netinet/in.h>
235 dnl These are defined in files in m4/
241 dnl Check if support for jumbograms is requested
242 AC_ARG_ENABLE(jumbograms,
243 AS_HELP_STRING([--enable-jumbograms], [enable support for jumbograms (packets up to 9000 bytes)]),
244 [ AS_IF([test "x$enable_jumbograms" = "xyes"],
245 [ AC_DEFINE(ENABLE_JUMBOGRAMS, 1, [Support for jumbograms (packets up to 9000 bytes)]) ])
249 AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile m4/Makefile distro/Makefile])