1 dnl Process this file with autoconf to produce a configure script.
4 AC_INIT([MeshLink], [0.1])
5 AM_INIT_AUTOMAKE([std-options subdir-objects nostdinc silent-rules -Wall])
6 AC_CONFIG_HEADERS([config.h])
7 AC_CONFIG_MACRO_DIR([m4])
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.
34 AC_DEFINE(HAVE_LINUX, 1, [Linux])
38 AC_DEFINE(HAVE_MINGW, 1, [MinGW])
39 LIBS="$LIBS -lws2_32 -lgdi32 -lcrypt32"
43 AM_CONDITIONAL(LINUX, test "$linux" = true)
44 AM_CONDITIONAL(MINGW, test "$mingw" = true)
48 if test -d /sw/include ; then
49 CPPFLAGS="$CPPFLAGS -I/sw/include"
51 if test -d /sw/lib ; then
52 LIBS="$LIBS -L/sw/lib"
55 dnl Compiler hardening flags
56 dnl No -fstack-protector-all because it doesn't work on all platforms or architectures.
58 AC_ARG_ENABLE([hardening], AS_HELP_STRING([--disable-hardening], [disable compiler and linker hardening flags]))
59 AS_IF([test "x$enable_hardening" != "xno"],
60 [CPPFLAGS="$CPPFLAGS -W -pedantic"
61 AX_CHECK_COMPILE_FLAG([-DFORTIFY_SOURCE=2], [CPPFLAGS="$CPPFLAGS -DFORITFY_SOURCE=2"])
62 AX_CHECK_COMPILE_FLAG([-fwrapv], [CPPFLAGS="$CPPFLAGS -fwrapv"],
63 [AX_CHECK_COMPILE_FLAG([-fno-strict-overflow], [CPPFLAGS="$CPPFLAGS -fno-strict-overflow"])]
67 AX_CHECK_LINK_FLAG([-Wl,--dynamicbase], [LDFLAGS="$LDFLAGS -Wl,--dynamicbase"])
68 AX_CHECK_LINK_FLAG([-Wl,--nxcompat], [LDFLAGS="$LDFLAGS -Wl,--nxcompat"])
71 AX_CHECK_COMPILE_FLAG([-fPIE], [CPPFLAGS="$CPPFLAGS -fPIE"])
72 AX_CHECK_COMPILE_FLAG([-fPIC], [CPPFLAGS="$CPPFLAGS -fPIC"])
73 AX_CHECK_LINK_FLAG([-pie], [LDFLAGS="$LDFLAGS -pie"])
76 AX_CHECK_LINK_FLAG([-Wl,-z,relro], [LDFLAGS="$LDFLAGS -Wl,-z,relro"])
77 AX_CHECK_LINK_FLAG([-Wl,-z,now], [LDFLAGS="$LDFLAGS -Wl,-z,now"])
81 dnl Allow building without Catta
82 AC_ARG_ENABLE([catta], AS_HELP_STRING([--disable-catta], [disable linking with the Catta library]))
83 AS_IF([test "x$enable_catta" != "xno"],
84 AC_DEFINE(HAVE_CATTA, 1, [Link with Catta])
85 AC_CONFIG_SUBDIRS([catta])
87 AM_CONDITIONAL(CATTA, test "x$enable_catta" != "xno")
90 AC_ARG_ENABLE([utcp_debug], AS_HELP_STRING([--enable-utcp-debug], [compile utcp with debug output]))
91 AS_IF([test "x$enable_utcp_debug" = "xyes"],
92 [AX_CHECK_COMPILE_FLAG([-DUTCP_DEBUG], [CPPFLAGS="$CPPFLAGS -DUTCP_DEBUG"])
96 dnl Install test binaries
97 AC_ARG_ENABLE([install_tests],
98 [AS_HELP_STRING([--enable-install-tests], [include test binaries in installation])],
99 [AS_IF([test "x$enable_install_tests" = "xyes"], [install_tests=true], [install_tests=false])],
100 [install_tests=false]
103 AM_CONDITIONAL(INSTALL_TESTS, test "$install_tests" = true)
105 dnl Checks for header files.
106 dnl We do this in multiple stages, because unlike Linux all the other operating systems really suck and don't include their own dependencies.
108 AC_CHECK_HEADERS([syslog.h sys/file.h sys/param.h sys/resource.h sys/socket.h sys/time.h sys/un.h sys/wait.h netdb.h arpa/inet.h dirent.h])
110 dnl Checks for typedefs, structures, and compiler characteristics.
111 MeshLink_ATTRIBUTE(__malloc__)
112 MeshLink_ATTRIBUTE(__warn_unused_result__)
114 AC_CHECK_TYPES([socklen_t, struct addrinfo, struct sockaddr_in6], , ,
115 [#include "$srcdir/src/have.h"]
118 AC_CHECK_TYPES([struct sockaddr_storage], ,AC_MSG_ERROR([System must support struct sockaddr_storage.]),
119 [#include "$srcdir/src/have.h"]
122 dnl Checks for library functions.
124 AC_CHECK_FUNCS([asprintf fchmod fork gettimeofday random select strdup usleep],
125 [], [], [#include "$srcdir/src/have.h"]
128 dnl Support for SunOS
130 AC_CHECK_FUNC(socket, [], [
131 AC_CHECK_LIB(socket, connect)
133 AC_CHECK_FUNC(gethostbyname, [], [
134 AC_CHECK_LIB(nsl, gethostbyname)
137 AC_CHECK_DECLS([freeaddrinfo, gai_strerror, getaddrinfo, getnameinfo],
138 [], [], [#include "$srcdir/src/have.h"]
143 AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile test/Makefile examples/Makefile])