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([-fPIC], [CPPFLAGS="$CPPFLAGS -fPIC"])
74 AX_CHECK_LINK_FLAG([-Wl,-z,relro], [LDFLAGS="$LDFLAGS -Wl,-z,relro"])
75 AX_CHECK_LINK_FLAG([-Wl,-z,now], [LDFLAGS="$LDFLAGS -Wl,-z,now"])
79 dnl Allow building without Catta
80 AC_ARG_ENABLE([catta], AS_HELP_STRING([--disable-catta], [disable linking with the Catta library]))
81 AS_IF([test "x$enable_catta" != "xno"],
82 AC_DEFINE(HAVE_CATTA, 1, [Link with Catta])
83 AC_CONFIG_SUBDIRS([catta])
85 AM_CONDITIONAL(CATTA, test "x$enable_catta" != "xno")
88 AC_ARG_ENABLE([utcp_debug], AS_HELP_STRING([--enable-utcp-debug], [compile utcp with debug output]))
89 AS_IF([test "x$enable_utcp_debug" = "xyes"],
90 [AX_CHECK_COMPILE_FLAG([-DUTCP_DEBUG], [CPPFLAGS="$CPPFLAGS -DUTCP_DEBUG"])
94 dnl Install test binaries
95 AC_ARG_ENABLE([install_tests],
96 [AS_HELP_STRING([--enable-install-tests], [include test binaries in installation])],
97 [AS_IF([test "x$enable_install_tests" = "xyes"], [install_tests=true], [install_tests=false])],
101 AM_CONDITIONAL(INSTALL_TESTS, test "$install_tests" = true)
103 dnl Checks for header files.
104 dnl We do this in multiple stages, because unlike Linux all the other operating systems really suck and don't include their own dependencies.
106 AC_CHECK_HEADERS([syslog.h sys/file.h sys/param.h sys/resource.h sys/socket.h sys/time.h sys/un.h sys/wait.h netdb.h arpa/inet.h dirent.h])
108 dnl Checks for typedefs, structures, and compiler characteristics.
109 MeshLink_ATTRIBUTE(__malloc__)
110 MeshLink_ATTRIBUTE(__warn_unused_result__)
112 AC_CHECK_TYPES([socklen_t, struct addrinfo, struct sockaddr_in6], , ,
113 [#include "$srcdir/src/have.h"]
116 AC_CHECK_TYPES([struct sockaddr_storage], ,AC_MSG_ERROR([System must support struct sockaddr_storage.]),
117 [#include "$srcdir/src/have.h"]
120 dnl Checks for library functions.
122 AC_CHECK_FUNCS([asprintf fchmod fork gettimeofday random select strdup usleep],
123 [], [], [#include "$srcdir/src/have.h"]
126 dnl Support for SunOS
128 AC_CHECK_FUNC(socket, [], [
129 AC_CHECK_LIB(socket, connect)
131 AC_CHECK_FUNC(gethostbyname, [], [
132 AC_CHECK_LIB(nsl, gethostbyname)
135 AC_CHECK_DECLS([freeaddrinfo, gai_strerror, getaddrinfo, getnameinfo],
136 [], [], [#include "$srcdir/src/have.h"]
141 AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile test/Makefile examples/Makefile])