1 dnl Process this file with autoconf to produce a configure script.
4 AC_INIT([tinc], [1.0.24])
5 AC_CONFIG_SRCDIR([src/tincd.c])
6 AM_INIT_AUTOMAKE([1.11 check-news std-options subdir-objects nostdinc -Wall])
7 AC_CONFIG_HEADERS([config.h])
10 # Enable GNU extensions.
11 # Define this here, not in acconfig's @TOP@ section, since definitions
12 # in the latter don't make it into the configure-time tests.
14 AC_DEFINE([__USE_BSD], 1, [Enable BSD extensions])
16 dnl Checks for programs.
28 AC_DEFINE(HAVE_LINUX, 1, [Linux])
32 AC_DEFINE(HAVE_FREEBSD, 1, [FreeBSD])
36 AC_DEFINE(HAVE_DARWIN, 1, [Darwin (MacOS/X)])
40 AC_DEFINE(HAVE_SOLARIS, 1, [Solaris/SunOS])
44 AC_DEFINE(HAVE_OPENBSD, 1, [OpenBSD])
48 AC_DEFINE(HAVE_NETBSD, 1, [NetBSD])
52 AC_DEFINE(HAVE_DRAGONFLY, 1, [DragonFly])
56 AC_MSG_WARN("Unknown BSD variant, tinc might not compile or work!")
57 AC_DEFINE(HAVE_BSD, 1, [Unknown BSD variant])
61 AC_DEFINE(HAVE_CYGWIN, 1, [Cygwin])
65 AC_DEFINE(HAVE_MINGW, 1, [MinGW])
66 LIBS="$LIBS -lws2_32 -lgdi32 -lcrypt32"
69 AC_MSG_ERROR("Unknown operating system.")
74 AS_HELP_STRING([--enable-uml], [enable support for User Mode Linux]),
75 [ AS_IF([test "x$enable_uml" = "xyes"],
76 [ AC_DEFINE(ENABLE_UML, 1, [Support for UML])
85 AS_HELP_STRING([--enable-vde], [enable support for Virtual Distributed Ethernet]),
86 [ AS_IF([test "x$enable_vde" = "xyes"],
87 [ AC_CHECK_HEADERS(libvdeplug_dyn.h, [], [AC_MSG_ERROR([VDE plug header files not found.]); break])
88 AC_DEFINE(ENABLE_VDE, 1, [Support for VDE])
97 AS_HELP_STRING([--enable-tunemu], [enable support for the tunemu driver]),
98 [ AS_IF([test "x$enable_tunemu" = "xyes"],
99 [ AC_DEFINE(ENABLE_TUNEMU, 1, [Support for tunemu])
107 AC_ARG_WITH(windows2000,
108 AS_HELP_STRING([--with-windows2000], [compile with support for Windows 2000. This disables support for tunneling over existing IPv6 networks.]),
109 [ AS_IF([test "x$with_windows2000" = "xyes"],
110 [AC_DEFINE(WITH_WINDOWS2000, 1, [Compile with support for Windows 2000])])
114 AM_CONDITIONAL(LINUX, test "$linux" = true)
115 AM_CONDITIONAL(BSD, test "$bsd" = true)
116 AM_CONDITIONAL(SOLARIS, test "$solaris" = true)
117 AM_CONDITIONAL(MINGW, test "$mingw" = true)
118 AM_CONDITIONAL(CYGWIN, test "$cygwin" = true)
119 AM_CONDITIONAL(UML, test "$uml" = true)
120 AM_CONDITIONAL(VDE, test "$vde" = true)
121 AM_CONDITIONAL(TUNEMU, test "$tunemu" = true)
125 if test -d /sw/include ; then
126 CPPFLAGS="$CPPFLAGS -I/sw/include"
128 if test -d /sw/lib ; then
129 LIBS="$LIBS -L/sw/lib"
132 dnl Compiler hardening flags
133 dnl No -fstack-protector-all because it doesn't work on all platforms or architectures.
135 AC_ARG_ENABLE([hardening], AS_HELP_STRING([--disable-hardening], [disable compiler and linker hardening flags]))
136 AS_IF([test "x$enable_hardening" != "xno"],
137 [AX_CHECK_COMPILE_FLAG([-DFORTIFY_SOURCE=2], [CPPFLAGS="$CPPFLAGS -DFORITFY_SOURCE=2"])
138 AX_CHECK_COMPILE_FLAG([-fno-strict-overflow], [CPPFLAGS="$CPPFLAGS -fno-strict-overflow"])
139 AX_CHECK_COMPILE_FLAG([-fwrapv], [CPPFLAGS="$CPPFLAGS -fwrapv"])
142 AX_CHECK_LINK_FLAG([-Wl,--dynamicbase], [LDFLAGS="$LDFLAGS -Wl,--dynamicbase"])
143 AX_CHECK_LINK_FLAG([-Wl,--nxcompat], [LDFLAGS="$LDFLAGS -Wl,--nxcompat"])
146 AX_CHECK_COMPILE_FLAG([-fPIE], [CPPFLAGS="$CPPFLAGS -fPIE"])
147 AX_CHECK_LINK_FLAG([-pie], [LDFLAGS="$LDFLAGS -pie"])
150 AX_CHECK_LINK_FLAG([-Wl,-z,relro], [LDFLAGS="$LDFLAGS -Wl,-z,relro"])
151 AX_CHECK_LINK_FLAG([-Wl,-z,now], [LDFLAGS="$LDFLAGS -Wl,-z,now"])
155 dnl Checks for libraries.
157 dnl Checks for header files.
158 dnl We do this in multiple stages, because unlike Linux all the other operating systems really suck and don't include their own dependencies.
161 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])
162 AC_CHECK_HEADERS([net/if.h net/if_types.h linux/if_tun.h net/if_tun.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],
163 [], [], [#include "src/have.h"]
165 AC_CHECK_HEADERS([netinet/if_ether.h netinet/ip.h netinet/ip6.h resolv.h],
166 [], [], [#include "src/have.h"]
168 AC_CHECK_HEADERS([netinet/tcp.h netinet/ip_icmp.h netinet/icmp6.h],
169 [], [], [#include "src/have.h"]
172 dnl Checks for typedefs, structures, and compiler characteristics.
180 tinc_ATTRIBUTE(__malloc__)
182 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], , ,
183 [#include "src/have.h"]
186 dnl Checks for library functions.
188 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],
189 [], [], [#include "src/have.h"]
192 dnl Support for SunOS
194 AC_CHECK_FUNC(socket, [], [
195 AC_CHECK_LIB(socket, connect)
197 AC_CHECK_FUNC(gethostbyname, [], [
198 AC_CHECK_LIB(nsl, gethostbyname)
201 AC_CHECK_DECLS([freeaddrinfo, gai_strerror, getaddrinfo, getnameinfo],
202 [], [], [#include "src/have.h"]
205 AC_CHECK_DECLS([res_init], [], [], [
206 #include <netinet/in.h>
212 dnl These are defined in files in m4/
218 dnl Check if support for jumbograms is requested
219 AC_ARG_ENABLE(jumbograms,
220 AS_HELP_STRING([--enable-jumbograms], [enable support for jumbograms (packets up to 9000 bytes)]),
221 [ AS_IF([test "x$enable_jumbograms" = "xyes"],
222 [ AC_DEFINE(ENABLE_JUMBOGRAMS, 1, [Support for jumbograms (packets up to 9000 bytes)]) ])
226 AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile m4/Makefile])