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(wspiapi.h    HAVE_WSPIAPI_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
  21 check_symbol_exists(backtrace    "execinfo.h"       HAVE_BACKTRACE)          #  dbus-sysdeps.c, dbus-sysdeps-win.c
  22 check_symbol_exists(getgrouplist "grp.h"            HAVE_GETGROUPLIST)       #  dbus-sysdeps.c
  23 check_symbol_exists(getpeerucred "ucred.h"          HAVE_GETPEERUCRED)       #  dbus-sysdeps.c, dbus-sysdeps-win.c
  24 check_symbol_exists(nanosleep    "time.h"           HAVE_NANOSLEEP)          #  dbus-sysdeps.c
  25 check_symbol_exists(getpwnam_r   "errno.h pwd.h"    HAVE_POSIX_GETPWNAM_R)   #  dbus-sysdeps-util-unix.c
  26 check_symbol_exists(setenv       "stdlib.h"         HAVE_SETENV)             #  dbus-sysdeps.c
  27 check_symbol_exists(socketpair   "sys/socket.h"     HAVE_SOCKETPAIR)         #  dbus-sysdeps.c
  28 check_symbol_exists(unsetenv     "stdlib.h"         HAVE_UNSETENV)           #  dbus-sysdeps.c
  29 check_symbol_exists(writev       "sys/uio.h"        HAVE_WRITEV)             #  dbus-sysdeps.c, dbus-sysdeps-win.c
  30 check_symbol_exists(setrlimit    "sys/resource.h"   HAVE_SETRLIMIT)          #  dbus-sysdeps.c, dbus-sysdeps-win.c, test/test-segfault.c
  31 check_symbol_exists(socklen_t    "sys/socket.h"     HAVE_SOCKLEN_T)          #  dbus-sysdeps-unix.c
  32
  33 check_struct_member(cmsgcred cmcred_pid "sys/types.h sys/socket.h" HAVE_CMSGCRED)   #  dbus-sysdeps.c
  34
  35 # missing:
  36 # HAVE_ABSTRACT_SOCKETS
  37 # DBUS_HAVE_GCC33_GCOV
  38
  39 check_type_size("short"     SIZEOF_SHORT)
  40 check_type_size("int"       SIZEOF_INT)
  41 check_type_size("long"      SIZEOF_LONG)
  42 check_type_size("long long" SIZEOF_LONG_LONG)
  43 check_type_size("__int64"   SIZEOF___INT64)
  44
  45 # DBUS_INT64_TYPE
  46 if(SIZEOF_INT EQUAL 8)
  47     set (DBUS_HAVE_INT64 1)
  48     set (DBUS_INT64_TYPE "int")
  49 else(SIZEOF_INT EQUAL 8)
  50     if(SIZEOF_LONG EQUAL 8)
  51         set (DBUS_HAVE_INT64 1)
  52         set (DBUS_INT64_TYPE "long")
  53     else(SIZEOF_LONG EQUAL 8)
  54         if(SIZEOF_LONG_LONG EQUAL 8)
  55             set (DBUS_HAVE_INT64 1)
  56             set (DBUS_INT64_TYPE "long long")
  57         else(SIZEOF_LONG_LONG EQUAL 8)
  58             if(SIZEOF___INT64 EQUAL 8)
  59                 set (DBUS_HAVE_INT64 1)
  60                 set (DBUS_INT64_TYPE "__int64")
  61             endif(SIZEOF___INT64 EQUAL 8)
  62         endif(SIZEOF_LONG_LONG EQUAL 8)
  63     endif(SIZEOF_LONG EQUAL 8)
  64 endif(SIZEOF_INT EQUAL 8)
  65
  66 # DBUS_INT32_TYPE
  67 if(SIZEOF_INT EQUAL 4)
  68     set (DBUS_INT32_TYPE "int")
  69 else(SIZEOF_INT EQUAL 4)
  70     if(SIZEOF_LONG EQUAL 4)
  71         set (DBUS_INT32_TYPE "long")
  72     else(SIZEOF_LONG EQUAL 4)
  73         if(SIZEOF_LONG_LONG EQUAL 4)
  74             set (DBUS_INT32_TYPE "long long")
  75         endif(SIZEOF_LONG_LONG EQUAL 4)
  76     endif(SIZEOF_LONG EQUAL 4)
  77 endif(SIZEOF_INT EQUAL 4)
  78
  79 # DBUS_INT16_TYPE
  80 if(SIZEOF_INT EQUAL 2)
  81     set (DBUS_INT16_TYPE "int")
  82 else(SIZEOF_INT EQUAL 2)
  83     if(SIZEOF_SHORT EQUAL 2)
  84         set (DBUS_INT16_TYPE "short")
  85     endif(SIZEOF_SHORT EQUAL 2)
  86 endif(SIZEOF_INT EQUAL 2)
  87
  88 find_program(DOXYGEN doxygen)
  89 find_program(XMLTO xmlto)
  90
  91 if(MSVC)
  92    SET(DBUS_VA_COPY_FUNC "_DBUS_VA_COPY_ASSIGN";)
  93 else(MSVC)
  94 write_file("${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/cmake_try_compile.c" "#include <stdarg.h>
  95         #include <stdlib.h>
  96         static void f (int i, ...) {
  97         va_list args1, args2;
  98         va_start (args1, i);
  99         va_copy (args2, args1);
 100         if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
 101           exit (1);
 102         va_end (args1); va_end (args2);
 103         }
 104         int main() {
 105           f (0, 42);
 106           return 0;
 107         }
 108 ")
 109 try_compile(DBUS_HAVE_VA_COPY
 110             ${CMAKE_BINARY_DIR}
 111             ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/cmake_try_compile.c)
 112
 113 if(DBUS_HAVE_VA_COPY)
 114   SET(DBUS_VA_COPY_FUNC va_copy CACHE STRING "va_copy function")
 115 else(DBUS_HAVE_VA_COPY)
 116   write_file("${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/cmake_try_compile.c" "#include <stdarg.h>
 117           #include <stdlib.h>
 118           static void f (int i, ...) {
 119           va_list args1, args2;
 120           va_start (args1, i);
 121           __va_copy (args2, args1);
 122           if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
 123             exit (1);
 124           va_end (args1); va_end (args2);
 125           }
 126           int main() {
 127             f (0, 42);
 128             return 0;
 129           }
 130   ")
 131   try_compile(DBUS_HAVE___VA_COPY
 132               ${CMAKE_BINARY_DIR}
 133               ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/cmake_try_compile.c)
 134   if(DBUS_HAVE___VA_COPY)
 135     SET(DBUS_VA_COPY_FUNC __va_copy CACHE STRING "va_copy function")
 136   else(DBUS_HAVE___VA_COPY)
 137     SET(DBUS_VA_COPY_AS_ARRAY "1" CACHE STRING "'va_lists' cannot be copies as values")
 138   endif(DBUS_HAVE___VA_COPY)
 139 endif(DBUS_HAVE_VA_COPY)
 140 endif(MSVC) # _not_ MSVC
 141 #### Abstract sockets
 142
 143 if (DBUS_ENABLE_ABSTRACT_SOCKETS)
 144
 145   try_compile(HAVE_ABSTRACT_SOCKETS
 146               ${CMAKE_BINARY_DIR}
 147               ${CMAKE_SOURCE_DIR}/modules/CheckForAbstractSockets.c)
 148
 149 endif(DBUS_ENABLE_ABSTRACT_SOCKETS)
 150
 151 if(HAVE_ABSTRACT_SOCKETS)
 152   set(DBUS_PATH_OR_ABSTRACT_VALUE abstract)
 153 else(HAVE_ABSTRACT_SOCKETS)
 154   set(DBUS_PATH_OR_ABSTRACT_VALUE path)
 155 endif(HAVE_ABSTRACT_SOCKETS)
 156