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(setspent HAVE_SETSPENT)
  67 check_function_exists(getspnam HAVE_GETSPNAM)
  68
  69 check_function_exists(getgrnam_r HAVE_GETGRNAM_R)
  70 check_function_exists(getgrgid_r HAVE_GETGRGID_R)
  71 check_function_exists(getgrent_r HAVE_GETGRENT_R)
  72
  73 check_function_exists(getgrouplist HAVE_GETGROUPLIST)
  74
  75 check_function_exists(gethostbyaddr_r HAVE_GETHOSTBYADDR_R)
  76 check_function_exists(gethostbyname_r HAVE_GETHOSTBYNAME_R)
  77
  78 check_function_exists(gethostbyname2 HAVE_GETHOSTBYNAME2)
  79
  80 if (WIN32)
  81     check_function_exists(_vsnprintf_s HAVE__VSNPRINTF_S)
  82     check_function_exists(_vsnprintf HAVE__VSNPRINTF)
  83     check_function_exists(_snprintf HAVE__SNPRINTF)
  84     check_function_exists(_snprintf_s HAVE__SNPRINTF_S)
  85 endif (WIN32)
  86
  87 if (UNIX)
  88     if (NOT LINUX)
  89         # libsocket (Solaris)
  90         check_library_exists(socket getaddrinfo "" HAVE_LIBSOCKET)
  91         if (HAVE_LIBSOCKET)
  92           set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} socket)
  93         endif (HAVE_LIBSOCKET)
  94
  95         # libnsl/inet_pton (Solaris)
  96         check_library_exists(nsl inet_pton "" HAVE_LIBNSL)
  97         if (HAVE_LIBNSL)
  98             set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} nsl)
  99         endif (HAVE_LIBNSL)
 100     endif (NOT LINUX)
 101
 102     check_function_exists(getaddrinfo HAVE_GETADDRINFO)
 103 endif (UNIX)
 104
 105 if (SOLARIS)
 106     check_function_exists(__posix_getpwnam_r HAVE___POSIX_GETPWNAM_R)
 107     check_function_exists(__posix_getpwuid_r HAVE___POSIX_GETPWUID_R)
 108
 109     check_function_exists(__posix_getgrgid_r HAVE___POSIX_GETGRGID_R)
 110     check_function_exists(__posix_getgrnam_r HAVE___POSIX_GETGRNAM_R)
 111 endif (SOLARIS)
 112
 113 check_function_exists(asprintf HAVE_ASPRINTF)
 114 if (UNIX AND HAVE_ASPRINTF)
 115     add_definitions(-D_GNU_SOURCE)
 116 endif (UNIX AND HAVE_ASPRINTF)
 117
 118 set(CMAKE_REQUIRED_DEFINITIONS -D_POSIX_PTHREAD_SEMANTICS)
 119 check_prototype_definition(getpwent_r
 120     "struct passwd *getpwent_r(struct passwd *src, char *buf, int buflen)"
 121     "NULL"
 122     "unistd.h;pwd.h"
 123     HAVE_SOLARIS_GETPWENT_R)
 124
 125 check_prototype_definition(getpwnam_r
 126     "int getpwnam_r(const char *name, struct passwd *pwd, char *buf, int buflen, struct passwd **ppwd)"
 127     "-1"
 128     "unistd.h;pwd.h"
 129     HAVE_SOLARIS_GETPWNAM_R)
 130
 131 check_prototype_definition(getpwuid_r
 132     "int getpwuid_r(uid_t uid, struct passwd *pwd, char *buf, int buflen, struct passwd **ppwd)"
 133     "-1"
 134     "unistd.h;pwd.h"
 135     HAVE_SOLARIS_GETPWUID_R)
 136
 137 check_prototype_definition(getgrent_r
 138     "struct group *getgrent_r(struct group *src, char *buf, int buflen)"
 139     "NULL"
 140     "unistd.h;grp.h"
 141     HAVE_SOLARIS_GETGRENT_R)
 142
 143 check_prototype_definition(getgrnam_r
 144     "int getgrnam_r(const char *name, struct group *grp, char *buf, int buflen, struct group **pgrp)"
 145     "-1"
 146     "unistd.h;grp.h"
 147     HAVE_SOLARIS_GETGRNAM_R)
 148
 149 check_prototype_definition(getgrgid_r
 150     "int getgrgid_r(gid_t gid, struct group *grp, char *buf, int buflen, struct group **pgrp)"
 151     "-1"
 152     "unistd.h;grp.h"
 153     HAVE_SOLARIS_GETGRGID_R)
 154
 155 check_prototype_definition(sethostent
 156     "int sethostent(int stayopen)"
 157     "-1"
 158     "unistd.h;netdb.h"
 159     HAVE_SOLARIS_SETHOSTENT)
 160
 161 check_prototype_definition(endhostent
 162     "int endhostent(void)"
 163     "-1"
 164     "unistd.h;netdb.h"
 165     HAVE_SOLARIS_ENDHOSTENT)
 166
 167 check_prototype_definition(gethostname
 168     "int gethostname(char *name, int len)"
 169     "-1"
 170     "unistd.h;netdb.h"
 171     HAVE_SOLARIS_GETHOSTNAME)
 172 set(CMAKE_REQUIRED_DEFINITIONS)
 173
 174 check_prototype_definition(setgrent
 175     "int setgrent(void)"
 176     "-1"
 177     "unistd.h;grp.h"
 178     HAVE_BSD_SETGRENT)
 179
 180 check_prototype_definition(getnameinfo
 181     "int getnameinfo (const struct sockaddr *sa, socklen_t salen, char *host, socklen_t __hostlen, char *serv, socklen_t servlen, int flags)"
 182     "-1"
 183     "unistd.h;netdb.h"
 184     HAVE_LINUX_GETNAMEINFO)
 185
 186 check_prototype_definition(getnameinfo
 187     "int getnameinfo (const struct sockaddr *sa, socklen_t salen, char *host, socklen_t __hostlen, char *serv, socklen_t servlen, unsigned int flags)"
 188     "-1"
 189     "unistd.h;netdb.h"
 190     HAVE_LINUX_GETNAMEINFO_UNSIGNED)
 191
 192 # STRUCT MEMBERS
 193 check_struct_has_member("struct sockaddr" sa_len "sys/socket.h netinet/in.h" HAVE_STRUCT_SOCKADDR_SA_LEN)
 194
 195 # IPV6
 196 check_c_source_compiles("
 197     #include <stdlib.h>
 198     #include <sys/socket.h>
 199     #include <netdb.h>
 200     #include <netinet/in.h>
 201     #include <net/if.h>
 202
 203 int main(void) {
 204     struct sockaddr_storage sa_store;
 205     struct addrinfo *ai = NULL;
 206     struct in6_addr in6addr;
 207     int idx = if_nametoindex(\"iface1\");
 208     int s = socket(AF_INET6, SOCK_STREAM, 0);
 209     int ret = getaddrinfo(NULL, NULL, NULL, &ai);
 210     if (ret != 0) {
 211         const char *es = gai_strerror(ret);
 212     }
 213
 214     freeaddrinfo(ai);
 215     {
 216         int val = 1;
 217 #ifdef HAVE_LINUX_IPV6_V6ONLY_26
 218 #define IPV6_V6ONLY 26
 219 #endif
 220         ret = setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY,
 221                          (const void *)&val, sizeof(val));
 222     }
 223
 224     return 0;
 225 }" HAVE_IPV6)
 226
 227 check_c_source_compiles("
 228 void log_fn(const char *format, ...) __attribute__ ((format (printf, 1, 2)));
 229
 230 int main(void) {
 231     return 0;
 232 }" HAVE_ATTRIBUTE_PRINTF_FORMAT)
 233
 234 check_c_source_compiles("
 235 void test_destructor_attribute(void) __attribute__ ((destructor));
 236
 237 void test_destructor_attribute(void)
 238 {
 239     return;
 240 }
 241
 242 int main(void) {
 243     return 0;
 244 }" HAVE_DESTRUCTOR_ATTRIBUTE)
 245
 246 check_library_exists(dl dlopen "" HAVE_LIBDL)
 247 if (HAVE_LIBDL)
 248     find_library(DLFCN_LIBRARY dl)
 249     set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${DLFCN_LIBRARY})
 250 endif (HAVE_LIBDL)
 251
 252 # ENDIAN
 253 if (NOT WIN32)
 254     test_big_endian(WORDS_BIGENDIAN)
 255 endif (NOT WIN32)
 256
 257 set(NWRAP_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} CACHE INTERNAL "nss_wrapper required system libraries")