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