ConfigureChecks.cmake

   1 include(CheckIncludeFile)
   2 include(CheckSymbolExists)
   3 include(CheckFunctionExists)
   4 include(CheckLibraryExists)
   5 include(CheckTypeSize)
   6 include(CheckStructHasMember)
   7 include(CheckPrototypeDefinition)
   8 include(TestBigEndian)
   9
  10 set(PACKAGE ${APPLICATION_NAME})
  11 set(VERSION ${APPLICATION_VERSION})
  12 set(DATADIR ${DATA_INSTALL_DIR})
  13 set(LIBDIR ${LIB_INSTALL_DIR})
  14 set(PLUGINDIR "${PLUGIN_INSTALL_DIR}-${LIBRARY_SOVERSION}")
  15 set(SYSCONFDIR ${SYSCONF_INSTALL_DIR})
  16
  17 set(BINARYDIR ${CMAKE_BINARY_DIR})
  18 set(SOURCEDIR ${CMAKE_SOURCE_DIR})
  19
  20 function(COMPILER_DUMPVERSION _OUTPUT_VERSION)
  21     # Remove whitespaces from the argument.
  22     # This is needed for CC="ccache gcc" cmake ..
  23     string(REPLACE " " "" _C_COMPILER_ARG "${CMAKE_C_COMPILER_ARG1}")
  24
  25     execute_process(
  26         COMMAND
  27             ${CMAKE_C_COMPILER} ${_C_COMPILER_ARG} -dumpversion
  28         OUTPUT_VARIABLE _COMPILER_VERSION
  29     )
  30
  31     string(REGEX REPLACE "([0-9])\\.([0-9])(\\.[0-9])?" "\\1\\2"
  32            _COMPILER_VERSION "${_COMPILER_VERSION}")
  33
  34     set(${_OUTPUT_VERSION} ${_COMPILER_VERSION} PARENT_SCOPE)
  35 endfunction()
  36
  37 if(CMAKE_COMPILER_IS_GNUCC AND NOT MINGW AND NOT OS2)
  38     compiler_dumpversion(GNUCC_VERSION)
  39     if (NOT GNUCC_VERSION EQUAL 34)
  40         set(CMAKE_REQUIRED_FLAGS "-fvisibility=hidden")
  41         check_c_source_compiles(
  42 "void __attribute__((visibility(\"default\"))) test() {}
  43 int main(void){ return 0; }
  44 " WITH_VISIBILITY_HIDDEN)
  45         set(CMAKE_REQUIRED_FLAGS "")
  46     endif (NOT GNUCC_VERSION EQUAL 34)
  47 endif(CMAKE_COMPILER_IS_GNUCC AND NOT MINGW AND NOT OS2)
  48
  49 # HEADERS
  50 check_include_file(sys/types.h HAVE_SYS_TYPES_H)
  51 check_include_file(pwd.h HAVE_PWD_H)
  52 check_include_file(shadow.h HAVE_SHADOW_H)
  53 check_include_file(grp.h HAVE_GRP_H)
  54 check_include_file(nss.h HAVE_NSS_H)
  55 check_include_file(nss_common.h HAVE_NSS_COMMON_H)
  56
  57 # FUNCTIONS
  58 check_function_exists(strncpy HAVE_STRNCPY)
  59 check_function_exists(vsnprintf HAVE_VSNPRINTF)
  60 check_function_exists(snprintf HAVE_SNPRINTF)
  61
  62 check_function_exists(getpwnam_r HAVE_GETPWNAM_R)
  63 check_function_exists(getpwuid_r HAVE_GETPWUID_R)
  64 check_function_exists(getpwent_r HAVE_GETPWENT_R)
  65
  66 check_function_exists(getgrnam_r HAVE_GETGRNAM_R)
  67 check_function_exists(getgrgid_r HAVE_GETGRGID_R)
  68 check_function_exists(getgrent_r HAVE_GETGRENT_R)
  69
  70 check_function_exists(getgrouplist HAVE_GETGROUPLIST)
  71
  72 check_function_exists(gethostbyaddr_r HAVE_GETHOSTBYADDR_R)
  73 check_function_exists(gethostbyname_r HAVE_GETHOSTBYNAME_R)
  74
  75 check_function_exists(gethostbyname2 HAVE_GETHOSTBYNAME2)
  76
  77 if (WIN32)
  78     check_function_exists(_vsnprintf_s HAVE__VSNPRINTF_S)
  79     check_function_exists(_vsnprintf HAVE__VSNPRINTF)
  80     check_function_exists(_snprintf HAVE__SNPRINTF)
  81     check_function_exists(_snprintf_s HAVE__SNPRINTF_S)
  82 endif (WIN32)
  83
  84 if (UNIX)
  85     if (NOT LINUX)
  86         # libsocket (Solaris)
  87         check_library_exists(socket getaddrinfo "" HAVE_LIBSOCKET)
  88         if (HAVE_LIBSOCKET)
  89           set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} socket)
  90         endif (HAVE_LIBSOCKET)
  91
  92         # libnsl/inet_pton (Solaris)
  93         check_library_exists(nsl inet_pton "" HAVE_LIBNSL)
  94         if (HAVE_LIBNSL)
  95             set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} nsl)
  96         endif (HAVE_LIBNSL)
  97     endif (NOT LINUX)
  98
  99     check_function_exists(getaddrinfo HAVE_GETADDRINFO)
 100 endif (UNIX)
 101
 102 if (SOLARIS)
 103     check_function_exists(__posix_getpwnam_r HAVE___POSIX_GETPWNAM_R)
 104     check_function_exists(__posix_getpwuid_r HAVE___POSIX_GETPWUID_R)
 105
 106     check_function_exists(__posix_getgrgid_r HAVE___POSIX_GETGRGID_R)
 107     check_function_exists(__posix_getgrnam_r HAVE___POSIX_GETGRNAM_R)
 108 endif (SOLARIS)
 109
 110 check_function_exists(asprintf HAVE_ASPRINTF)
 111 if (UNIX AND HAVE_ASPRINTF)
 112     add_definitions(-D_GNU_SOURCE)
 113 endif (UNIX AND HAVE_ASPRINTF)
 114
 115 set(CMAKE_REQUIRED_DEFINITIONS -D_POSIX_PTHREAD_SEMANTICS)
 116 check_prototype_definition(getpwent_r
 117     "struct passwd *getpwent_r(struct passwd *src, char *buf, int buflen)"
 118     "NULL"
 119     "unistd.h;pwd.h"
 120     HAVE_SOLARIS_GETPWENT_R)
 121
 122 check_prototype_definition(getpwnam_r
 123     "int getpwnam_r(const char *name, struct passwd *pwd, char *buf, int buflen, struct passwd **ppwd)"
 124     "-1"
 125     "unistd.h;pwd.h"
 126     HAVE_SOLARIS_GETPWNAM_R)
 127
 128 check_prototype_definition(getpwuid_r
 129     "int getpwuid_r(uid_t uid, struct passwd *pwd, char *buf, int buflen, struct passwd **ppwd)"
 130     "-1"
 131     "unistd.h;pwd.h"
 132     HAVE_SOLARIS_GETPWUID_R)
 133
 134 check_prototype_definition(getgrent_r
 135     "struct group *getgrent_r(struct group *src, char *buf, int buflen)"
 136     "NULL"
 137     "unistd.h;grp.h"
 138     HAVE_SOLARIS_GETGRENT_R)
 139
 140 check_prototype_definition(getgrnam_r
 141     "int getgrnam_r(const char *name, struct group *grp, char *buf, int buflen, struct group **pgrp)"
 142     "-1"
 143     "unistd.h;grp.h"
 144     HAVE_SOLARIS_GETGRNAM_R)
 145
 146 check_prototype_definition(getgrgid_r
 147     "int getgrgid_r(gid_t gid, struct group *grp, char *buf, int buflen, struct group **pgrp)"
 148     "-1"
 149     "unistd.h;grp.h"
 150     HAVE_SOLARIS_GETGRGID_R)
 151
 152 check_prototype_definition(sethostent
 153     "int sethostent(int stayopen)"
 154     "-1"
 155     "unistd.h;netdb.h"
 156     HAVE_SOLARIS_SETHOSTENT)
 157
 158 check_prototype_definition(endhostent
 159     "int endhostent(void)"
 160     "-1"
 161     "unistd.h;netdb.h"
 162     HAVE_SOLARIS_ENDHOSTENT)
 163
 164 check_prototype_definition(gethostname
 165     "int gethostname(char *name, int len)"
 166     "-1"
 167     "unistd.h;netdb.h"
 168     HAVE_SOLARIS_GETHOSTNAME)
 169 set(CMAKE_REQUIRED_DEFINITIONS)
 170
 171 check_prototype_definition(setgrent
 172     "int setgrent(void)"
 173     "-1"
 174     "unistd.h;grp.h"
 175     HAVE_BSD_SETGRENT)
 176
 177 check_prototype_definition(getnameinfo
 178     "int getnameinfo (const struct sockaddr *sa, socklen_t salen, char *host, socklen_t __hostlen, char *serv, socklen_t servlen, int flags)"
 179     "-1"
 180     "unistd.h;netdb.h"
 181     HAVE_LINUX_GETNAMEINFO)
 182
 183 check_prototype_definition(getnameinfo
 184     "int getnameinfo (const struct sockaddr *sa, socklen_t salen, char *host, socklen_t __hostlen, char *serv, socklen_t servlen, unsigned int flags)"
 185     "-1"
 186     "unistd.h;netdb.h"
 187     HAVE_LINUX_GETNAMEINFO_UNSIGNED)
 188
 189 # STRUCT MEMBERS
 190 check_struct_has_member("struct sockaddr" sa_len "sys/socket.h netinet/in.h" HAVE_STRUCT_SOCKADDR_SA_LEN)
 191
 192 # IPV6
 193 check_c_source_compiles("
 194     #include <stdlib.h>
 195     #include <sys/socket.h>
 196     #include <netdb.h>
 197     #include <netinet/in.h>
 198     #include <net/if.h>
 199
 200 int main(void) {
 201     struct sockaddr_storage sa_store;
 202     struct addrinfo *ai = NULL;
 203     struct in6_addr in6addr;
 204     int idx = if_nametoindex(\"iface1\");
 205     int s = socket(AF_INET6, SOCK_STREAM, 0);
 206     int ret = getaddrinfo(NULL, NULL, NULL, &ai);
 207     if (ret != 0) {
 208         const char *es = gai_strerror(ret);
 209     }
 210
 211     freeaddrinfo(ai);
 212     {
 213         int val = 1;
 214 #ifdef HAVE_LINUX_IPV6_V6ONLY_26
 215 #define IPV6_V6ONLY 26
 216 #endif
 217         ret = setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY,
 218                          (const void *)&val, sizeof(val));
 219     }
 220
 221     return 0;
 222 }" HAVE_IPV6)
 223
 224 check_c_source_compiles("
 225 void log_fn(const char *format, ...) __attribute__ ((format (printf, 1, 2)));
 226
 227 int main(void) {
 228     return 0;
 229 }" HAVE_ATTRIBUTE_PRINTF_FORMAT)
 230
 231 check_c_source_compiles("
 232 void test_destructor_attribute(void) __attribute__ ((destructor));
 233
 234 void test_destructor_attribute(void)
 235 {
 236     return;
 237 }
 238
 239 int main(void) {
 240     return 0;
 241 }" HAVE_DESTRUCTOR_ATTRIBUTE)
 242
 243 check_library_exists(dl dlopen "" HAVE_LIBDL)
 244 if (HAVE_LIBDL)
 245     find_library(DLFCN_LIBRARY dl)
 246     set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${DLFCN_LIBRARY})
 247 endif (HAVE_LIBDL)
 248
 249 # ENDIAN
 250 if (NOT WIN32)
 251     test_big_endian(WORDS_BIGENDIAN)
 252 endif (NOT WIN32)
 253
 254 set(NWRAP_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} CACHE INTERNAL "nss_wrapper required system libraries")