cmake/ConfigureChecks.cmake

   1 include(CheckIncludeFile)
   2 include(CheckSymbolExists)
   3 include(CheckStructMember)
   4 include(CheckTypeSize)
   5
   6 check_include_file(dirent.h     HAVE_DIRENT_H)  # dbus-sysdeps-util.c
   7 check_include_file(io.h         HAVE_IO_H)      # internal
   8 check_include_file(grp.h        HAVE_GRP_H)     # dbus-sysdeps-util-win.c
   9 check_include_file(sys/poll.h   HAVE_POLL)      # dbus-sysdeps.c, dbus-sysdeps-win.c
  10 check_include_file(sys/time.h   HAVE_SYS_TIME_H)# dbus-sysdeps-win.c
  11 check_include_file(sys/wait.h   HAVE_SYS_WAIT_H)# dbus-sysdeps-win.c
  12 check_include_file(time.h       HAVE_TIME_H)    # dbus-sysdeps-win.c
  13 check_include_file(ws2tcpip.h   HAVE_WS2TCPIP_H)# dbus-sysdeps-win.c
  14 check_include_file(unistd.h     HAVE_UNISTD_H)  # dbus-sysdeps-util-win.c
  15 check_include_file(stdio.h      HAVE_STDIO_H)   # dbus-sysdeps.h
  16 check_include_file(sys/syslimits.h    HAVE_SYS_SYSLIMITS_H)   # dbus-sysdeps-unix.c
  17 check_include_file(errno.h     HAVE_ERRNO_H)    # dbus-sysdeps.c
  18 check_include_file(signal.h     HAVE_SIGNAL_H)
  19 check_include_file(locale.h     HAVE_LOCALE_H)
  20 check_include_file(inttypes.h     HAVE_INTTYPES_H)   # dbus-pipe.h
  21 check_include_file(stdint.h     HAVE_STDINT_H)   # dbus-pipe.h
  22
  23 check_symbol_exists(backtrace    "execinfo.h"       HAVE_BACKTRACE)          #  dbus-sysdeps.c, dbus-sysdeps-win.c
  24 check_symbol_exists(getgrouplist "grp.h"            HAVE_GETGROUPLIST)       #  dbus-sysdeps.c
  25 check_symbol_exists(getpeerucred "ucred.h"          HAVE_GETPEERUCRED)       #  dbus-sysdeps.c, dbus-sysdeps-win.c
  26 check_symbol_exists(nanosleep    "time.h"           HAVE_NANOSLEEP)          #  dbus-sysdeps.c
  27 check_symbol_exists(getpwnam_r   "errno.h pwd.h"    HAVE_POSIX_GETPWNAM_R)   #  dbus-sysdeps-util-unix.c
  28 check_symbol_exists(setenv       "stdlib.h"         HAVE_SETENV)             #  dbus-sysdeps.c
  29 check_symbol_exists(unsetenv     "stdlib.h"         HAVE_UNSETENV)           #  dbus-sysdeps.c
  30 check_symbol_exists(clearenv     "stdlib.h"         HAVE_CLEARENV)           #  dbus-sysdeps.c
  31 check_symbol_exists(writev       "sys/uio.h"        HAVE_WRITEV)             #  dbus-sysdeps.c, dbus-sysdeps-win.c
  32 check_symbol_exists(setrlimit    "sys/resource.h"   HAVE_SETRLIMIT)          #  dbus-sysdeps.c, dbus-sysdeps-win.c, test/test-segfault.c
  33 check_symbol_exists(socketpair   "sys/socket.h"     HAVE_SOCKETPAIR)         #  dbus-sysdeps.c
  34 check_symbol_exists(socklen_t    "sys/socket.h"     HAVE_SOCKLEN_T)          #  dbus-sysdeps-unix.c
  35 check_symbol_exists(setlocale    "locale.h"         HAVE_SETLOCALE)          #  dbus-test-main.c
  36 check_symbol_exists(localeconv   "locale.h"         HAVE_LOCALECONV)         #  dbus-sysdeps.c
  37 check_symbol_exists(strtoll      "stdlib.h"         HAVE_STRTOLL)            #  dbus-send.c
  38 check_symbol_exists(strtoull     "stdlib.h"         HAVE_STRTOULL)           #  dbus-send.c
  39 set(CMAKE_REQUIRED_DEFINITIONS -D_GNU_SOURCE)
  40 check_symbol_exists(pipe2        "fcntl.h;unistd.h"         HAVE_PIPE2)
  41 check_symbol_exists(accept4      "sys/socket.h"             HAVE_ACCEPT4)
  42 check_symbol_exists(dirfd        "dirent.h"                 HAVE_DIRFD)
  43 check_symbol_exists(inotify_init1 "sys/inotify.h"           HAVE_INOTIFY_INIT1)
  44 check_symbol_exists(SCM_RIGHTS    "sys/types.h;sys/socket.h;sys/un.h" HAVE_UNIX_FD_PASSING)
  45
  46 check_struct_member(cmsgcred cmcred_pid "sys/types.h sys/socket.h" HAVE_CMSGCRED)   #  dbus-sysdeps.c
  47
  48 # missing:
  49 # HAVE_ABSTRACT_SOCKETS
  50 # DBUS_HAVE_GCC33_GCOV
  51
  52 check_type_size("short"     SIZEOF_SHORT)
  53 check_type_size("int"       SIZEOF_INT)
  54 check_type_size("long"      SIZEOF_LONG)
  55 check_type_size("long long" SIZEOF_LONG_LONG)
  56 check_type_size("__int64"   SIZEOF___INT64)
  57
  58 # DBUS_INT64_TYPE
  59 if(SIZEOF_INT EQUAL 8)
  60     set (DBUS_INT64_TYPE "int")
  61     set (DBUS_INT64_CONSTANT  "(val)")
  62     set (DBUS_UINT64_CONSTANT "(val##U)")
  63 elseif(SIZEOF_LONG EQUAL 8)
  64     set (DBUS_INT64_TYPE "long")
  65     set (DBUS_INT64_CONSTANT  "(val##L)")
  66     set (DBUS_UINT64_CONSTANT "(val##UL)")
  67 elseif(SIZEOF_LONG_LONG EQUAL 8)
  68     set (DBUS_INT64_TYPE "long long")
  69     set (DBUS_INT64_CONSTANT  "(val##LL)")
  70     set (DBUS_UINT64_CONSTANT "(val##ULL)")
  71 elseif(SIZEOF___INT64 EQUAL 8)
  72     set (DBUS_INT64_TYPE "__int64")
  73     set (DBUS_INT64_CONSTANT  "(val##i64)")
  74     set (DBUS_UINT64_CONSTANT "(val##ui64)")
  75 else(SIZEOF_INT EQUAL 8)
  76     message (FATAL_ERROR "Could not find a 64-bit integer type")
  77 endif(SIZEOF_INT EQUAL 8)
  78
  79 # DBUS_INT32_TYPE
  80 if(SIZEOF_INT EQUAL 4)
  81     set (DBUS_INT32_TYPE "int")
  82 elseif(SIZEOF_LONG EQUAL 4)
  83     set (DBUS_INT32_TYPE "long")
  84 elseif(SIZEOF_LONG_LONG EQUAL 4)
  85     set (DBUS_INT32_TYPE "long long")
  86 endif(SIZEOF_INT EQUAL 4)
  87
  88 # DBUS_INT16_TYPE
  89 if(SIZEOF_INT EQUAL 2)
  90     set (DBUS_INT16_TYPE "int")
  91 elseif(SIZEOF_SHORT EQUAL 2)
  92     set (DBUS_INT16_TYPE "short")
  93 endif(SIZEOF_INT EQUAL 2)
  94
  95 find_program(DOXYGEN doxygen)
  96 find_program(XMLTO xmlto)
  97
  98 if(MSVC)
  99    SET(DBUS_VA_COPY_FUNC "_DBUS_VA_COPY_ASSIGN")
 100 else(MSVC)
 101 write_file("${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/cmake_try_compile.c" "#include <stdarg.h>
 102         #include <stdlib.h>
 103         static void f (int i, ...) {
 104         va_list args1, args2;
 105         va_start (args1, i);
 106         va_copy (args2, args1);
 107         if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
 108           exit (1);
 109         va_end (args1); va_end (args2);
 110         }
 111         int main() {
 112           f (0, 42);
 113           return 0;
 114         }
 115 ")
 116 try_compile(DBUS_HAVE_VA_COPY
 117             ${CMAKE_BINARY_DIR}
 118             ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/cmake_try_compile.c)
 119
 120 if(DBUS_HAVE_VA_COPY)
 121   SET(DBUS_VA_COPY_FUNC va_copy CACHE STRING "va_copy function")
 122 else(DBUS_HAVE_VA_COPY)
 123   write_file("${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/cmake_try_compile.c" "#include <stdarg.h>
 124           #include <stdlib.h>
 125           static void f (int i, ...) {
 126           va_list args1, args2;
 127           va_start (args1, i);
 128           __va_copy (args2, args1);
 129           if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
 130             exit (1);
 131           va_end (args1); va_end (args2);
 132           }
 133           int main() {
 134             f (0, 42);
 135             return 0;
 136           }
 137   ")
 138   try_compile(DBUS_HAVE___VA_COPY
 139               ${CMAKE_BINARY_DIR}
 140               ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/cmake_try_compile.c)
 141   if(DBUS_HAVE___VA_COPY)
 142     SET(DBUS_VA_COPY_FUNC __va_copy CACHE STRING "va_copy function")
 143   else(DBUS_HAVE___VA_COPY)
 144     SET(DBUS_VA_COPY_AS_ARRAY "1" CACHE STRING "'va_lists' cannot be copies as values")
 145   endif(DBUS_HAVE___VA_COPY)
 146 endif(DBUS_HAVE_VA_COPY)
 147 endif(MSVC) # _not_ MSVC
 148 #### Abstract sockets
 149
 150 if (DBUS_ENABLE_ABSTRACT_SOCKETS)
 151
 152   try_compile(HAVE_ABSTRACT_SOCKETS
 153               ${CMAKE_BINARY_DIR}
 154               ${CMAKE_SOURCE_DIR}/modules/CheckForAbstractSockets.c)
 155
 156 endif(DBUS_ENABLE_ABSTRACT_SOCKETS)
 157
 158 if(HAVE_ABSTRACT_SOCKETS)
 159   set(DBUS_PATH_OR_ABSTRACT_VALUE abstract)
 160 else(HAVE_ABSTRACT_SOCKETS)
 161   set(DBUS_PATH_OR_ABSTRACT_VALUE path)
 162 endif(HAVE_ABSTRACT_SOCKETS)
 163