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Handle network change detection on macOS and iOS.
[meshlink] / configure.ac
1 dnl Process this file with autoconf to produce a configure script.
2
3 AC_PREREQ(2.61)
4 AC_INIT([MeshLink], [0.1])
5 DX_PS_FEATURE(OFF)
6 DX_INIT_DOXYGEN([MeshLink], [$(top_srcdir)/Doxyfile])
7 AM_INIT_AUTOMAKE([std-options subdir-objects nostdinc silent-rules -Wall])
8 AC_CONFIG_HEADERS([config.h])
9 AC_CONFIG_MACRO_DIR([m4])
10 AM_SILENT_RULES([yes])
11
12 # Enable GNU extensions.
13 # Define this here, not in acconfig's @TOP@ section, since definitions
14 # in the latter don't make it into the configure-time tests.
15 AC_USE_SYSTEM_EXTENSIONS
16 AC_DEFINE([__USE_BSD], 1, [Enable BSD extensions])
17 AC_DEFINE([_POSIX_C_SOURCE], 200809L, [Enable POSIX features])
18
19 dnl Checks for programs.
20 AM_PROG_CC_C_O
21 AM_PROG_AR
22 AC_PROG_CC_C99
23 AC_PROG_CXX
24 AC_PROG_CPP
25 AC_PROG_INSTALL
26 AC_PROG_LN_S
27 AC_PROG_LIBTOOL
28 AX_PTHREAD
29
30 dnl Check and set OS
31
32 AC_CANONICAL_HOST
33
34 case $host_os in
35   *linux*)
36     linux=true
37     AC_DEFINE(HAVE_LINUX, 1, [Linux])
38   ;;
39   *mingw*)
40     mingw=true
41     AC_DEFINE(HAVE_MINGW, 1, [MinGW])
42     LIBS="$LIBS -lws2_32 -lgdi32 -lcrypt32"
43   ;;
44   *darwin*)
45     LIBS="$LIBS -framework SystemConfiguration -framework CoreServices"
46   ;;
47 esac
48
49 AM_CONDITIONAL(LINUX, test "$linux" = true)
50 AM_CONDITIONAL(MINGW, test "$mingw" = true)
51
52 AC_CACHE_SAVE
53
54 if test -d /sw/include ; then
55   CPPFLAGS="$CPPFLAGS -I/sw/include"
56 fi
57 if test -d /sw/lib ; then
58   LIBS="$LIBS -L/sw/lib"
59 fi
60
61 AX_CHECK_COMPILE_FLAG([-std=c11], [CFLAGS="$CFLAGS -std=c11"])
62
63 dnl Compiler hardening flags
64 dnl No -fstack-protector-all because it doesn't work on all platforms or architectures.
65
66 AC_ARG_ENABLE([hardening], AS_HELP_STRING([--disable-hardening], [disable compiler and linker hardening flags]))
67 AS_IF([test "x$enable_hardening" != "xno"],
68   [CPPFLAGS="$CPPFLAGS -Wall -W -pedantic"
69    AX_CHECK_COMPILE_FLAG([-DFORTIFY_SOURCE=2], [CPPFLAGS="$CPPFLAGS -DFORITFY_SOURCE=2"])
70    AX_CHECK_COMPILE_FLAG([-fwrapv], [CPPFLAGS="$CPPFLAGS -fwrapv"],
71      [AX_CHECK_COMPILE_FLAG([-fno-strict-overflow], [CPPFLAGS="$CPPFLAGS -fno-strict-overflow"])]
72    )
73    case $host_os in
74      *mingw*)
75        AX_CHECK_LINK_FLAG([-Wl,--dynamicbase], [LDFLAGS="$LDFLAGS -Wl,--dynamicbase"])
76        AX_CHECK_LINK_FLAG([-Wl,--nxcompat], [LDFLAGS="$LDFLAGS -Wl,--nxcompat"])
77        ;;
78      *)
79        AX_CHECK_COMPILE_FLAG([-fPIC], [CPPFLAGS="$CPPFLAGS -fPIC"])
80        ;;
81    esac
82    AX_CHECK_LINK_FLAG([-Wl,-z,relro], [LDFLAGS="$LDFLAGS -Wl,-z,relro"])
83    AX_CHECK_LINK_FLAG([-Wl,-z,now], [LDFLAGS="$LDFLAGS -Wl,-z,now"])
84    AX_CHECK_COMPILE_FLAG([-Wextra -pedantic -Wreturn-type -Wold-style-definition -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wredundant-decls -Wshadow -Wbad-function-cast -Wwrite-strings -fdiagnostics-show-option -fstrict-aliasing -Wmissing-noreturn], [CPPFLAGS="$CPPFLAGS -Wextra -pedantic -Wreturn-type -Wold-style-definition -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wredundant-decls -Wshadow -Wbad-function-cast -Wwrite-strings -fdiagnostics-show-option -fstrict-aliasing -Wmissing-noreturn"])
85   ]
86 );
87
88 dnl UTCP debug flags
89 AC_ARG_ENABLE([utcp_debug], AS_HELP_STRING([--enable-utcp-debug], [compile utcp with debug output]))
90 AS_IF([test "x$enable_utcp_debug" = "xyes"],
91   [AX_CHECK_COMPILE_FLAG([-DUTCP_DEBUG], [CPPFLAGS="$CPPFLAGS -DUTCP_DEBUG"])
92   ]
93 );
94
95 dnl Blackbox test suite
96 PKG_CHECK_MODULES([CMOCKA], [cmocka >= 1.1.0], [cmocka=true], [cmocka=false])
97 PKG_CHECK_MODULES([LXC], [lxc >= 2.0.0], [lxc=true], [lxc=false])
98 AM_CONDITIONAL(BLACKBOX_TESTS, test "$cmocka" = true -a "$lxc" = true)
99
100
101 dnl Additional example code
102 PKG_CHECK_MODULES([NCURSES], [ncurses >= 5], [curses=true], [curses=false])
103 AC_ARG_ENABLE([monitor_code], 
104         [AS_HELP_STRING([--enable-monitor-code], [Add monitor example code to the build])],
105   [AS_IF([test "x$enable_monitor_code" = "xyes"], [monitor_code=true], [monitor_code=false])],
106   [monitor_code=false]
107 )
108 AM_CONDITIONAL(MONITOR, test "$monitor_code" = true)
109
110 dnl Install test binaries
111 AC_ARG_ENABLE([install_tests],
112   [AS_HELP_STRING([--enable-install-tests], [include test binaries in installation])],
113   [AS_IF([test "x$enable_install_tests" = "xyes"], [install_tests=true], [install_tests=false])],
114   [install_tests=false]
115 )
116
117 AM_CONDITIONAL(INSTALL_TESTS, test "$install_tests" = true)
118
119 dnl Checks for header files.
120 dnl We do this in multiple stages, because unlike Linux all the other operating systems really suck and don't include their own dependencies.
121
122 AC_CHECK_HEADERS([syslog.h sys/file.h sys/param.h sys/resource.h sys/socket.h sys/time.h sys/un.h sys/wait.h netdb.h arpa/inet.h dirent.h curses.h ifaddrs.h stdatomic.h])
123
124 dnl Checks for typedefs, structures, and compiler characteristics.
125 MeshLink_ATTRIBUTE(__malloc__)
126 MeshLink_ATTRIBUTE(__warn_unused_result__)
127
128 dnl Checks for library functions.
129 AC_TYPE_SIGNAL
130 AC_CHECK_FUNCS([asprintf fchmod fork gettimeofday random pselect select setns strdup usleep getifaddrs freeifaddrs],
131   [], [], [#include "$srcdir/src/have.h"]
132 )
133
134 dnl Support for SunOS
135
136 AC_CHECK_FUNC(socket, [], [
137   AC_CHECK_LIB(socket, connect)
138 ])
139
140 AC_CACHE_SAVE
141
142 AC_CONFIG_FILES([
143          Makefile
144          src/Makefile
145          test/Makefile
146          test/blackbox/Makefile
147          test/blackbox/run_blackbox_tests/Makefile
148          test/blackbox/test_case_channel_conn_01/Makefile
149          test/blackbox/test_case_channel_conn_02/Makefile
150          test/blackbox/test_case_channel_conn_03/Makefile
151          test/blackbox/test_case_channel_conn_04/Makefile
152          test/blackbox/test_case_channel_conn_05/Makefile
153          test/blackbox/test_case_channel_conn_06/Makefile
154          test/blackbox/test_case_channel_conn_07/Makefile
155          test/blackbox/test_case_channel_conn_08/Makefile
156          test/blackbox/test_case_meta_conn_01/Makefile
157          test/blackbox/test_case_meta_conn_02/Makefile
158          test/blackbox/test_case_meta_conn_03/Makefile
159          test/blackbox/test_case_meta_conn_04/Makefile
160          test/blackbox/test_case_meta_conn_05/Makefile
161          test/blackbox/test_cases_submesh01/Makefile
162          test/blackbox/test_cases_submesh02/Makefile
163          test/blackbox/test_cases_submesh03/Makefile
164          test/blackbox/test_cases_submesh04/Makefile
165          examples/Makefile
166 ])
167
168 AC_OUTPUT