1 include(CheckIncludeFile)
2 include(CheckSymbolExists)
3 include(CheckFunctionExists)
4 include(CheckLibraryExists)
6 include(CheckStructHasMember)
7 include(CheckPrototypeDefinition)
10 set(SOCKET_WRAPPER_PACKAGE ${PROJECT_NAME})
11 set(SOCKET_WRAPPER_VERSION ${PROJECT_VERSION})
13 set(BINARYDIR ${CMAKE_BINARY_DIR})
14 set(SOURCEDIR ${CMAKE_SOURCE_DIR})
16 function(COMPILER_DUMPVERSION _OUTPUT_VERSION)
17 # Remove whitespaces from the argument.
18 # This is needed for CC="ccache gcc" cmake ..
19 string(REPLACE " " "" _C_COMPILER_ARG "${CMAKE_C_COMPILER_ARG1}")
23 ${CMAKE_C_COMPILER} ${_C_COMPILER_ARG} -dumpversion
24 OUTPUT_VARIABLE _COMPILER_VERSION
27 string(REGEX REPLACE "([0-9])\\.([0-9])(\\.[0-9])?" "\\1\\2"
28 _COMPILER_VERSION "${_COMPILER_VERSION}")
30 set(${_OUTPUT_VERSION} ${_COMPILER_VERSION} PARENT_SCOPE)
33 if(CMAKE_COMPILER_IS_GNUCC AND NOT MINGW AND NOT OS2)
34 compiler_dumpversion(GNUCC_VERSION)
35 if (NOT GNUCC_VERSION EQUAL 34)
36 set(CMAKE_REQUIRED_FLAGS "-fvisibility=hidden")
37 check_c_source_compiles(
38 "void __attribute__((visibility(\"default\"))) test() {}
39 int main(void){ return 0; }
40 " WITH_VISIBILITY_HIDDEN)
41 unset(CMAKE_REQUIRED_FLAGS)
42 endif (NOT GNUCC_VERSION EQUAL 34)
43 endif(CMAKE_COMPILER_IS_GNUCC AND NOT MINGW AND NOT OS2)
46 check_include_file(netinet/tcp_fsm.h HAVE_NETINET_TCP_FSM_H)
47 check_include_file(sys/filio.h HAVE_SYS_FILIO_H)
48 check_include_file(sys/signalfd.h HAVE_SYS_SIGNALFD_H)
49 check_include_file(sys/eventfd.h HAVE_SYS_EVENTFD_H)
50 check_include_file(sys/timerfd.h HAVE_SYS_TIMERFD_H)
51 check_include_file(gnu/lib-names.h HAVE_GNU_LIB_NAMES_H)
52 check_include_file(rpc/rpc.h HAVE_RPC_RPC_H)
55 set(CMAKE_REQUIRED_FLAGS -D_GNU_SOURCE)
56 check_symbol_exists(program_invocation_short_name
58 HAVE_PROGRAM_INVOCATION_SHORT_NAME)
59 unset(CMAKE_REQUIRED_FLAGS)
62 check_function_exists(strncpy HAVE_STRNCPY)
63 check_function_exists(vsnprintf HAVE_VSNPRINTF)
64 check_function_exists(snprintf HAVE_SNPRINTF)
65 check_function_exists(signalfd HAVE_SIGNALFD)
66 check_function_exists(eventfd HAVE_EVENTFD)
67 check_function_exists(timerfd_create HAVE_TIMERFD_CREATE)
68 check_function_exists(bindresvport HAVE_BINDRESVPORT)
69 check_function_exists(accept4 HAVE_ACCEPT4)
70 check_function_exists(open64 HAVE_OPEN64)
71 check_function_exists(fopen64 HAVE_FOPEN64)
72 check_function_exists(getprogname HAVE_GETPROGNAME)
73 check_function_exists(getexecname HAVE_GETEXECNAME)
74 check_function_exists(pledge HAVE_PLEDGE)
75 check_function_exists(_socket HAVE__SOCKET)
76 check_function_exists(_close HAVE__CLOSE)
79 find_library(DLFCN_LIBRARY dl)
81 list(APPEND _REQUIRED_LIBRARIES ${DLFCN_LIBRARY})
83 check_function_exists(dlopen HAVE_DLOPEN)
85 message(FATAL_ERROR "FATAL: No dlopen() function detected")
91 check_library_exists(socket getaddrinfo "" HAVE_LIBSOCKET)
93 list(APPEND _REQUIRED_LIBRARIES socket)
94 endif (HAVE_LIBSOCKET)
96 # libnsl/inet_pton (Solaris)
97 check_library_exists(nsl inet_pton "" HAVE_LIBNSL)
99 list(APPEND _REQUIRED_LIBRARIES nsl)
103 check_function_exists(getaddrinfo HAVE_GETADDRINFO)
107 check_struct_has_member("struct in_pktinfo" ipi_addr "sys/types.h;sys/socket.h;netinet/in.h" HAVE_STRUCT_IN_PKTINFO)
108 set(CMAKE_REQUIRED_FLAGS -D_GNU_SOURCE)
109 check_struct_has_member("struct in6_pktinfo" ipi6_addr "sys/types.h;sys/socket.h;netinet/in.h" HAVE_STRUCT_IN6_PKTINFO)
110 unset(CMAKE_REQUIRED_FLAGS)
113 check_struct_has_member("struct sockaddr" sa_len "sys/types.h;sys/socket.h;netinet/in.h" HAVE_STRUCT_SOCKADDR_SA_LEN)
114 check_struct_has_member("struct msghdr" msg_control "sys/types.h;sys/socket.h" HAVE_STRUCT_MSGHDR_MSG_CONTROL)
117 check_prototype_definition(gettimeofday
118 "int gettimeofday(struct timeval *tv, struct timezone *tz)"
121 HAVE_GETTIMEOFDAY_TZ)
123 check_prototype_definition(gettimeofday
124 "int gettimeofday(struct timeval *tv, void *tzp)"
127 HAVE_GETTIMEOFDAY_TZ_VOID)
129 check_prototype_definition(accept
130 "int accept(int s, struct sockaddr *addr, Psocklen_t addrlen)"
132 "sys/types.h;sys/socket.h"
133 HAVE_ACCEPT_PSOCKLEN_T)
135 check_prototype_definition(ioctl
136 "int ioctl(int s, int r, ...)"
138 "unistd.h;sys/ioctl.h"
142 check_prototype_definition(eventfd
143 "int eventfd(unsigned int count, int flags)"
146 HAVE_EVENTFD_UNSIGNED_INT)
150 check_c_source_compiles("
152 #include <sys/socket.h>
154 #include <netinet/in.h>
158 struct sockaddr_storage sa_store;
159 struct addrinfo *ai = NULL;
160 struct in6_addr in6addr;
161 int idx = if_nametoindex(\"iface1\");
162 int s = socket(AF_INET6, SOCK_STREAM, 0);
163 int ret = getaddrinfo(NULL, NULL, NULL, &ai);
165 const char *es = gai_strerror(ret);
171 #ifdef HAVE_LINUX_IPV6_V6ONLY_26
172 #define IPV6_V6ONLY 26
174 ret = setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY,
175 (const void *)&val, sizeof(val));
181 check_c_source_compiles("
182 #include <sys/socket.h>
185 struct sockaddr_storage s;
188 }" HAVE_SOCKADDR_STORAGE)
190 ###########################################################
191 # For detecting attributes we need to treat warnings as
193 set(CMAKE_REQUIRED_FLAGS "-Werror")
195 check_c_source_compiles("
196 void test_constructor_attribute(void) __attribute__ ((constructor));
198 void test_constructor_attribute(void)
205 }" HAVE_CONSTRUCTOR_ATTRIBUTE)
207 check_c_source_compiles("
208 void test_destructor_attribute(void) __attribute__ ((destructor));
210 void test_destructor_attribute(void)
217 }" HAVE_DESTRUCTOR_ATTRIBUTE)
219 check_c_source_compiles("
220 #pragma init (test_constructor)
221 void test_constructor(void);
223 void test_constructor(void)
232 check_c_source_compiles("
233 #pragma fini (test_destructor)
234 void test_destructor(void);
236 void test_destructor(void)
245 check_c_source_compiles("
246 #define FALL_THROUGH __attribute__((fallthrough))
261 }" HAVE_FALLTHROUGH_ATTRIBUTE)
263 check_c_source_compiles("
268 }" HAVE_GCC_THREAD_LOCAL_STORAGE)
270 check_c_source_compiles("
271 void log_fn(const char *format, ...) __attribute__ ((format (printf, 1, 2)));
275 }" HAVE_FUNCTION_ATTRIBUTE_FORMAT)
277 check_c_source_compiles("
278 void test_address_sanitizer_attribute(void) __attribute__((no_sanitize_address));
280 void test_address_sanitizer_attribute(void)
287 }" HAVE_ADDRESS_SANITIZER_ATTRIBUTE)
289 # Stop treating wanrings as errors
290 unset(CMAKE_REQUIRED_FLAGS)
291 ###########################################################
299 test_big_endian(WORDS_BIGENDIAN)
302 check_type_size(pid_t SIZEOF_PID_T)
304 set(SWRAP_REQUIRED_LIBRARIES ${_REQUIRED_LIBRARIES} CACHE INTERNAL "socket_wrapper required system libraries")