1 include(CheckCSourceCompiles) 2 # The begin of the sources (macros and includes) 3 set(_source_epilogue "#undef inline") 4 5 macro(add_header_include check header) 6 if(${check}) 7 set(_source_epilogue "${_source_epilogue}\n#include <${header}>") 8 endif(${check}) 9 endmacro(add_header_include) 10 11 set(signature_call_conv) 12 if(HAVE_WINDOWS_H) 13 add_header_include(HAVE_WINSOCK2_H "winsock2.h") 14 add_header_include(HAVE_WINDOWS_H "windows.h") 15 add_header_include(HAVE_WINSOCK_H "winsock.h") 16 set(_source_epilogue 17 "${_source_epilogue}\n#ifndef WIN32_LEAN_AND_MEAN\n#define WIN32_LEAN_AND_MEAN\n#endif") 18 set(signature_call_conv "PASCAL") 19 if(HAVE_LIBWS2_32) 20 set(CMAKE_REQUIRED_LIBRARIES ws2_32) 21 endif() 22 else(HAVE_WINDOWS_H) 23 add_header_include(HAVE_SYS_TYPES_H "sys/types.h") 24 add_header_include(HAVE_SYS_SOCKET_H "sys/socket.h") 25 endif(HAVE_WINDOWS_H) 26 27 check_c_source_compiles("${_source_epilogue} 28 int main(void) { 29 recv(0, 0, 0, 0); 30 return 0; 31 }" curl_cv_recv) 32 if(curl_cv_recv) 33 if(NOT DEFINED curl_cv_func_recv_args OR "${curl_cv_func_recv_args}" STREQUAL "unknown") 34 foreach(recv_retv "int" "ssize_t" ) 35 foreach(recv_arg1 "SOCKET" "int" ) 36 foreach(recv_arg2 "char *" "void *" ) 37 foreach(recv_arg3 "int" "size_t" "socklen_t" "unsigned int") 38 foreach(recv_arg4 "int" "unsigned int") 39 if(NOT curl_cv_func_recv_done) 40 unset(curl_cv_func_recv_test CACHE) 41 check_c_source_compiles(" 42 ${_source_epilogue} 43 extern ${recv_retv} ${signature_call_conv} 44 recv(${recv_arg1}, ${recv_arg2}, ${recv_arg3}, ${recv_arg4}); 45 int main(void) { 46 ${recv_arg1} s=0; 47 ${recv_arg2} buf=0; 48 ${recv_arg3} len=0; 49 ${recv_arg4} flags=0; 50 ${recv_retv} res = recv(s, buf, len, flags); 51 (void) res; 52 return 0; 53 }" 54 curl_cv_func_recv_test) 55 message(STATUS 56 "Tested: ${recv_retv} recv(${recv_arg1}, ${recv_arg2}, ${recv_arg3}, ${recv_arg4})") 57 if(curl_cv_func_recv_test) 58 set(curl_cv_func_recv_args 59 "${recv_arg1},${recv_arg2},${recv_arg3},${recv_arg4},${recv_retv}") 60 set(RECV_TYPE_ARG1 "${recv_arg1}") 61 set(RECV_TYPE_ARG2 "${recv_arg2}") 62 set(RECV_TYPE_ARG3 "${recv_arg3}") 63 set(RECV_TYPE_ARG4 "${recv_arg4}") 64 set(RECV_TYPE_RETV "${recv_retv}") 65 set(HAVE_RECV 1) 66 set(curl_cv_func_recv_done 1) 67 endif(curl_cv_func_recv_test) 68 endif(NOT curl_cv_func_recv_done) 69 endforeach(recv_arg4) 70 endforeach(recv_arg3) 71 endforeach(recv_arg2) 72 endforeach(recv_arg1) 73 endforeach(recv_retv) 74 else() 75 string(REGEX REPLACE "^([^,]*),[^,]*,[^,]*,[^,]*,[^,]*$" "\\1" RECV_TYPE_ARG1 "${curl_cv_func_recv_args}") 76 string(REGEX REPLACE "^[^,]*,([^,]*),[^,]*,[^,]*,[^,]*$" "\\1" RECV_TYPE_ARG2 "${curl_cv_func_recv_args}") 77 string(REGEX REPLACE "^[^,]*,[^,]*,([^,]*),[^,]*,[^,]*$" "\\1" RECV_TYPE_ARG3 "${curl_cv_func_recv_args}") 78 string(REGEX REPLACE "^[^,]*,[^,]*,[^,]*,([^,]*),[^,]*$" "\\1" RECV_TYPE_ARG4 "${curl_cv_func_recv_args}") 79 string(REGEX REPLACE "^[^,]*,[^,]*,[^,]*,[^,]*,([^,]*)$" "\\1" RECV_TYPE_RETV "${curl_cv_func_recv_args}") 80 endif() 81 82 if("${curl_cv_func_recv_args}" STREQUAL "unknown") 83 message(FATAL_ERROR "Cannot find proper types to use for recv args") 84 endif("${curl_cv_func_recv_args}" STREQUAL "unknown") 85 else(curl_cv_recv) 86 message(FATAL_ERROR "Unable to link function recv") 87 endif(curl_cv_recv) 88 set(curl_cv_func_recv_args "${curl_cv_func_recv_args}" CACHE INTERNAL "Arguments for recv") 89 set(HAVE_RECV 1) 90 91 check_c_source_compiles("${_source_epilogue} 92 int main(void) { 93 send(0, 0, 0, 0); 94 return 0; 95 }" curl_cv_send) 96 if(curl_cv_send) 97 if(NOT DEFINED curl_cv_func_send_args OR "${curl_cv_func_send_args}" STREQUAL "unknown") 98 foreach(send_retv "int" "ssize_t" ) 99 foreach(send_arg1 "SOCKET" "int" "ssize_t" ) 100 foreach(send_arg2 "const char *" "const void *" "void *" "char *") 101 foreach(send_arg3 "int" "size_t" "socklen_t" "unsigned int") 102 foreach(send_arg4 "int" "unsigned int") 103 if(NOT curl_cv_func_send_done) 104 unset(curl_cv_func_send_test CACHE) 105 check_c_source_compiles(" 106 ${_source_epilogue} 107 extern ${send_retv} ${signature_call_conv} 108 send(${send_arg1}, ${send_arg2}, ${send_arg3}, ${send_arg4}); 109 int main(void) { 110 ${send_arg1} s=0; 111 ${send_arg2} buf=0; 112 ${send_arg3} len=0; 113 ${send_arg4} flags=0; 114 ${send_retv} res = send(s, buf, len, flags); 115 (void) res; 116 return 0; 117 }" 118 curl_cv_func_send_test) 119 message(STATUS 120 "Tested: ${send_retv} send(${send_arg1}, ${send_arg2}, ${send_arg3}, ${send_arg4})") 121 if(curl_cv_func_send_test) 122 string(REGEX REPLACE "(const) .*" "\\1" send_qual_arg2 "${send_arg2}") 123 string(REGEX REPLACE "const (.*)" "\\1" send_arg2 "${send_arg2}") 124 set(curl_cv_func_send_args 125 "${send_arg1},${send_arg2},${send_arg3},${send_arg4},${send_retv},${send_qual_arg2}") 126 set(SEND_TYPE_ARG1 "${send_arg1}") 127 set(SEND_TYPE_ARG2 "${send_arg2}") 128 set(SEND_TYPE_ARG3 "${send_arg3}") 129 set(SEND_TYPE_ARG4 "${send_arg4}") 130 set(SEND_TYPE_RETV "${send_retv}") 131 set(HAVE_SEND 1) 132 set(curl_cv_func_send_done 1) 133 endif(curl_cv_func_send_test) 134 endif(NOT curl_cv_func_send_done) 135 endforeach(send_arg4) 136 endforeach(send_arg3) 137 endforeach(send_arg2) 138 endforeach(send_arg1) 139 endforeach(send_retv) 140 else() 141 string(REGEX REPLACE "^([^,]*),[^,]*,[^,]*,[^,]*,[^,]*,[^,]*$" "\\1" SEND_TYPE_ARG1 "${curl_cv_func_send_args}") 142 string(REGEX REPLACE "^[^,]*,([^,]*),[^,]*,[^,]*,[^,]*,[^,]*$" "\\1" SEND_TYPE_ARG2 "${curl_cv_func_send_args}") 143 string(REGEX REPLACE "^[^,]*,[^,]*,([^,]*),[^,]*,[^,]*,[^,]*$" "\\1" SEND_TYPE_ARG3 "${curl_cv_func_send_args}") 144 string(REGEX REPLACE "^[^,]*,[^,]*,[^,]*,([^,]*),[^,]*,[^,]*$" "\\1" SEND_TYPE_ARG4 "${curl_cv_func_send_args}") 145 string(REGEX REPLACE "^[^,]*,[^,]*,[^,]*,[^,]*,([^,]*),[^,]*$" "\\1" SEND_TYPE_RETV "${curl_cv_func_send_args}") 146 string(REGEX REPLACE "^[^,]*,[^,]*,[^,]*,[^,]*,[^,]*,([^,]*)$" "\\1" SEND_QUAL_ARG2 "${curl_cv_func_send_args}") 147 endif() 148 149 if("${curl_cv_func_send_args}" STREQUAL "unknown") 150 message(FATAL_ERROR "Cannot find proper types to use for send args") 151 endif("${curl_cv_func_send_args}" STREQUAL "unknown") 152 set(SEND_QUAL_ARG2 "const") 153 else(curl_cv_send) 154 message(FATAL_ERROR "Unable to link function send") 155 endif(curl_cv_send) 156 set(curl_cv_func_send_args "${curl_cv_func_send_args}" CACHE INTERNAL "Arguments for send") 157 set(HAVE_SEND 1) 158 159 check_c_source_compiles("${_source_epilogue} 160 int main(void) { 161 int flag = MSG_NOSIGNAL; 162 (void)flag; 163 return 0; 164 }" HAVE_MSG_NOSIGNAL) 165 166 if(NOT HAVE_WINDOWS_H) 167 add_header_include(HAVE_SYS_TIME_H "sys/time.h") 168 add_header_include(TIME_WITH_SYS_TIME "time.h") 169 add_header_include(HAVE_TIME_H "time.h") 170 endif() 171 check_c_source_compiles("${_source_epilogue} 172 int main(void) { 173 struct timeval ts; 174 ts.tv_sec = 0; 175 ts.tv_usec = 0; 176 (void)ts; 177 return 0; 178 }" HAVE_STRUCT_TIMEVAL) 179 180 181 include(CheckCSourceRuns) 182 # See HAVE_POLL in CMakeLists.txt for why poll is disabled on macOS 183 if(NOT APPLE) 184 set(CMAKE_REQUIRED_FLAGS) 185 if(HAVE_SYS_POLL_H) 186 set(CMAKE_REQUIRED_FLAGS "-DHAVE_SYS_POLL_H") 187 endif(HAVE_SYS_POLL_H) 188 check_c_source_runs(" 189 #ifdef HAVE_SYS_POLL_H 190 # include <sys/poll.h> 191 #endif 192 int main(void) { 193 return poll((void *)0, 0, 10 /*ms*/); 194 }" HAVE_POLL_FINE) 195 endif() 196 197 set(HAVE_SIG_ATOMIC_T 1) 198 set(CMAKE_REQUIRED_FLAGS) 199 if(HAVE_SIGNAL_H) 200 set(CMAKE_REQUIRED_FLAGS "-DHAVE_SIGNAL_H") 201 set(CMAKE_EXTRA_INCLUDE_FILES "signal.h") 202 endif(HAVE_SIGNAL_H) 203 check_type_size("sig_atomic_t" SIZEOF_SIG_ATOMIC_T) 204 if(HAVE_SIZEOF_SIG_ATOMIC_T) 205 check_c_source_compiles(" 206 #ifdef HAVE_SIGNAL_H 207 # include <signal.h> 208 #endif 209 int main(void) { 210 static volatile sig_atomic_t dummy = 0; 211 (void)dummy; 212 return 0; 213 }" HAVE_SIG_ATOMIC_T_NOT_VOLATILE) 214 if(NOT HAVE_SIG_ATOMIC_T_NOT_VOLATILE) 215 set(HAVE_SIG_ATOMIC_T_VOLATILE 1) 216 endif(NOT HAVE_SIG_ATOMIC_T_NOT_VOLATILE) 217 endif(HAVE_SIZEOF_SIG_ATOMIC_T) 218 219 if(HAVE_WINDOWS_H) 220 set(CMAKE_EXTRA_INCLUDE_FILES winsock2.h) 221 else() 222 set(CMAKE_EXTRA_INCLUDE_FILES) 223 if(HAVE_SYS_SOCKET_H) 224 set(CMAKE_EXTRA_INCLUDE_FILES sys/socket.h) 225 endif(HAVE_SYS_SOCKET_H) 226 endif() 227 228 check_type_size("struct sockaddr_storage" SIZEOF_STRUCT_SOCKADDR_STORAGE) 229 if(HAVE_SIZEOF_STRUCT_SOCKADDR_STORAGE) 230 set(HAVE_STRUCT_SOCKADDR_STORAGE 1) 231 endif(HAVE_SIZEOF_STRUCT_SOCKADDR_STORAGE) 232 233
