1 dnl Process this file with autoconf to produce a configure script.
4 AC_INIT([tinc], [1.1pre9])
5 AC_CONFIG_SRCDIR([src/tincd.c])
7 AM_INIT_AUTOMAKE([check-news std-options subdir-objects -Wall])
8 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.
32 AC_DEFINE(HAVE_LINUX, 1, [Linux])
36 AC_DEFINE(HAVE_FREEBSD, 1, [FreeBSD])
40 AC_DEFINE(HAVE_DARWIN, 1, [Darwin (MacOS/X)])
44 AC_DEFINE(HAVE_SOLARIS, 1, [Solaris/SunOS])
48 AC_DEFINE(HAVE_OPENBSD, 1, [OpenBSD])
52 AC_DEFINE(HAVE_NETBSD, 1, [NetBSD])
56 AC_DEFINE(HAVE_DRAGONFLY, 1, [DragonFly])
60 AC_MSG_WARN("Unknown BSD variant, tinc might not compile or work!")
61 AC_DEFINE(HAVE_BSD, 1, [Unknown BSD variant])
65 AC_DEFINE(HAVE_CYGWIN, 1, [Cygwin])
69 AC_DEFINE(HAVE_MINGW, 1, [MinGW])
70 LIBS="$LIBS -lws2_32 -lgdi32 -lcrypt32"
73 AC_MSG_ERROR("Unknown operating system.")
78 AS_HELP_STRING([--enable-uml], [enable support for User Mode Linux]),
79 [ AS_IF([test "x$enable_uml" = "xyes"],
80 [ AC_DEFINE(ENABLE_UML, 1, [Support for UML])
89 AS_HELP_STRING([--enable-vde], [enable support for Virtual Distributed Ethernet]),
90 [ AS_IF([test "x$enable_vde" = "xyes"],
91 [ AC_CHECK_HEADERS(libvdeplug_dyn.h, [], [AC_MSG_ERROR([VDE plug header files not found.]); break])
92 AC_DEFINE(ENABLE_VDE, 1, [Support for VDE])
100 AC_ARG_ENABLE(tunemu,
101 AS_HELP_STRING([--enable-tunemu], [enable support for the tunemu driver]),
102 [ AS_IF([test "x$enable_tunemu" = "xyes"],
103 [ AC_DEFINE(ENABLE_TUNEMU, 1, [Support for tunemu])
111 AC_ARG_WITH(windows2000,
112 AS_HELP_STRING([--with-windows2000], [compile with support for Windows 2000. This disables support for tunneling over existing IPv6 networks.]),
113 [ AS_IF([test "x$with_windows2000" = "xyes"],
114 [AC_DEFINE(WITH_WINDOWS2000, 1, [Compile with support for Windows 2000])])
118 AM_CONDITIONAL(LINUX, test "$linux" = true)
119 AM_CONDITIONAL(BSD, test "$bsd" = true)
120 AM_CONDITIONAL(SOLARIS, test "$solaris" = true)
121 AM_CONDITIONAL(MINGW, test "$mingw" = true)
122 AM_CONDITIONAL(CYGWIN, test "$cygwin" = true)
123 AM_CONDITIONAL(UML, test "$uml" = true)
124 AM_CONDITIONAL(VDE, test "$vde" = true)
125 AM_CONDITIONAL(TUNEMU, test "$tunemu" = true)
129 if test -d /sw/include ; then
130 CPPFLAGS="$CPPFLAGS -I/sw/include"
132 if test -d /sw/lib ; then
133 LIBS="$LIBS -L/sw/lib"
136 dnl Compiler hardening flags
137 dnl No -fstack-protector-all because it doesn't work on all platforms or architectures.
139 AC_ARG_ENABLE([hardening], AS_HELP_STRING([--disable-hardening], [disable compiler and linker hardening flags]))
140 AS_IF([test "x$enable_hardening" != "xno"],
141 [AX_CHECK_COMPILE_FLAG([-DFORTIFY_SOURCE=2], [CPPFLAGS="$CPPFLAGS -DFORITFY_SOURCE=2"])
142 AX_CHECK_COMPILE_FLAG([-fno-strict-overflow], [CPPFLAGS="$CPPFLAGS -fno-strict-overflow"])
143 AX_CHECK_COMPILE_FLAG([-fwrapv], [CPPFLAGS="$CPPFLAGS -fwrapv"])
146 AX_CHECK_LINK_FLAG([-Wl,--dynamicbase], [LDFLAGS="$LDFLAGS -Wl,--dynamicbase"])
147 AX_CHECK_LINK_FLAG([-Wl,--nxcompat], [LDFLAGS="$LDFLAGS -Wl,--nxcompat"])
150 AX_CHECK_COMPILE_FLAG([-fPIE], [CPPFLAGS="$CPPFLAGS -fPIE"])
151 AX_CHECK_LINK_FLAG([-pie], [LDFLAGS="$LDFLAGS -pie"])
154 AX_CHECK_LINK_FLAG([-Wl,-z,relro], [LDFLAGS="$LDFLAGS -Wl,-z,relro"])
155 AX_CHECK_LINK_FLAG([-Wl,-z,now], [LDFLAGS="$LDFLAGS -Wl,-z,now"])
159 dnl Checks for header files.
160 dnl We do this in multiple stages, because unlike Linux all the other operating systems really suck and don't include their own dependencies.
163 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 sys/uio.h sys/un.h sys/wait.h netdb.h arpa/inet.h dirent.h])
164 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 time.h netpacket/packet.h],
165 [], [], [#include "src/have.h"]
167 AC_CHECK_HEADERS([netinet/if_ether.h netinet/ip.h netinet/ip6.h],
168 [], [], [#include "src/have.h"]
170 AC_CHECK_HEADERS([netinet/tcp.h netinet/ip_icmp.h netinet/icmp6.h],
171 [], [], [#include "src/have.h"]
174 dnl Checks for typedefs, structures, and compiler characteristics.
182 tinc_ATTRIBUTE(__malloc__)
183 tinc_ATTRIBUTE(__warn_unused_result__)
185 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], , ,
186 [#include "src/have.h"]
189 dnl Checks for library functions.
191 AC_CHECK_FUNCS([asprintf daemon fchmod flock ftime fork get_current_dir_name gettimeofday mlockall putenv random select strdup strerror strsignal strtol system time usleep unsetenv vsyslog writev],
192 [], [], [#include "src/have.h"]
195 dnl Support for SunOS
197 AC_CHECK_FUNC(socket, [], [
198 AC_CHECK_LIB(socket, connect)
200 AC_CHECK_FUNC(gethostbyname, [], [
201 AC_CHECK_LIB(nsl, gethostbyname)
204 AC_CHECK_DECLS([freeaddrinfo, gai_strerror, getaddrinfo, getnameinfo],
205 [], [], [#include "src/have.h"]
210 dnl These are defined in files in m4/
212 dnl AC_ARG_WITH(libgcrypt, AC_HELP_STRING([--with-libgcrypt], [enable use of libgcrypt instead of OpenSSL])], [])
219 if test -n "$with_libgcrypt"; then
227 AM_CONDITIONAL(OPENSSL, test -n "$openssl")
228 AM_CONDITIONAL(GCRYPT, test -n "$gcrypt")
230 dnl Check if support for jumbograms is requested
231 AC_ARG_ENABLE(jumbograms,
232 AS_HELP_STRING([--enable-jumbograms], [enable support for jumbograms (packets up to 9000 bytes)]),
233 [ AS_IF([test "x$enable_jumbograms" = "xyes"],
234 [ AC_DEFINE(ENABLE_JUMBOGRAMS, 1, [Support for jumbograms (packets up to 9000 bytes)]) ])
238 AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile m4/Makefile gui/Makefile test/Makefile])