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(unistd.h     HAVE_UNISTD_H)  # dbus-sysdeps-util-win.c
  14 check_include_file(stdio.h      HAVE_STDIO_H)   # dbus-sysdeps.h
  15 check_include_file(sys/syslimits.h    HAVE_SYS_SYSLIMITS_H)   # dbus-sysdeps-unix.c
  16 check_include_file(errno.h     HAVE_ERRNO_H)    # dbus-sysdeps.c
  17
  18 check_symbol_exists(backtrace    "execinfo.h"       HAVE_BACKTRACE)          #  dbus-sysdeps.c, dbus-sysdeps-win.c
  19 check_symbol_exists(getgrouplist "grp.h"            HAVE_GETGROUPLIST)       #  dbus-sysdeps.c
  20 check_symbol_exists(getpeerucred "ucred.h"          HAVE_GETPEERUCRED)       #  dbus-sysdeps.c, dbus-sysdeps-win.c
  21 check_symbol_exists(nanosleep    "time.h"           HAVE_NANOSLEEP)          #  dbus-sysdeps.c
  22 check_symbol_exists(getpwnam_r   "errno.h pwd.h"    HAVE_POSIX_GETPWNAM_R)   #  dbus-sysdeps-util-unix.c
  23 check_symbol_exists(setenv       "stdlib.h"         HAVE_SETENV)             #  dbus-sysdeps.c
  24 check_symbol_exists(socketpair   "sys/socket.h"     HAVE_SOCKETPAIR)         #  dbus-sysdeps.c
  25 check_symbol_exists(unsetenv     "stdlib.h"         HAVE_UNSETENV)           #  dbus-sysdeps.c
  26 check_symbol_exists(writev       "sys/uio.h"        HAVE_WRITEV)             #  dbus-sysdeps.c, dbus-sysdeps-win.c
  27 check_symbol_exists(setrlimit    "sys/resource.h"   HAVE_SETRLIMIT)          #  dbus-sysdeps.c, dbus-sysdeps-win.c, test/test-segfault.c
  28 check_symbol_exists(socklen_t    "sys/socket.h"     HAVE_SOCKLEN_T)          #  dbus-sysdeps-unix.c
  29
  30 check_struct_member(cmsgcred cmcred_pid "sys/types.h sys/socket.h" HAVE_CMSGCRED)   #  dbus-sysdeps.c
  31
  32 # missing:
  33 # HAVE_ABSTRACT_SOCKETS
  34 # DBUS_HAVE_GCC33_GCOV
  35
  36 check_type_size("short"     SIZEOF_SHORT)
  37 check_type_size("int"       SIZEOF_INT)
  38 check_type_size("long"      SIZEOF_LONG)
  39 check_type_size("long long" SIZEOF_LONG_LONG)
  40 check_type_size("__int64"   SIZEOF___INT64)
  41
  42 # DBUS_INT64_TYPE
  43 if(SIZEOF_INT EQUAL 8)
  44     set (DBUS_HAVE_INT64 1)
  45     set (DBUS_INT64_TYPE "int")
  46 else(SIZEOF_INT EQUAL 8)
  47     if(SIZEOF_LONG EQUAL 8)
  48         set (DBUS_HAVE_INT64 1)
  49         set (DBUS_INT64_TYPE "long")
  50     else(SIZEOF_LONG EQUAL 8)
  51         if(SIZEOF_LONG_LONG EQUAL 8)
  52             set (DBUS_HAVE_INT64 1)
  53             set (DBUS_INT64_TYPE "long long")
  54         else(SIZEOF_LONG_LONG EQUAL 8)
  55             if(SIZEOF___INT64 EQUAL 8)
  56                 set (DBUS_HAVE_INT64 1)
  57                 set (DBUS_INT64_TYPE "__int64")
  58             endif(SIZEOF___INT64 EQUAL 8)
  59         endif(SIZEOF_LONG_LONG EQUAL 8)
  60     endif(SIZEOF_LONG EQUAL 8)
  61 endif(SIZEOF_INT EQUAL 8)
  62
  63 # DBUS_INT32_TYPE
  64 if(SIZEOF_INT EQUAL 4)
  65     set (DBUS_INT32_TYPE "int")
  66 else(SIZEOF_INT EQUAL 4)
  67     if(SIZEOF_LONG EQUAL 4)
  68         set (DBUS_INT32_TYPE "long")
  69     else(SIZEOF_LONG EQUAL 4)
  70         if(SIZEOF_LONG_LONG EQUAL 4)
  71             set (DBUS_INT32_TYPE "long long")
  72         endif(SIZEOF_LONG_LONG EQUAL 4)
  73     endif(SIZEOF_LONG EQUAL 4)
  74 endif(SIZEOF_INT EQUAL 4)
  75
  76 # DBUS_INT16_TYPE
  77 if(SIZEOF_INT EQUAL 2)
  78     set (DBUS_INT16_TYPE "int")
  79 else(SIZEOF_INT EQUAL 2)
  80     if(SIZEOF_SHORT EQUAL 2)
  81         set (DBUS_INT16_TYPE "short")
  82     endif(SIZEOF_SHORT EQUAL 2)
  83 endif(SIZEOF_INT EQUAL 2)
  84
  85 find_program(DOXYGEN doxygen)
  86 find_program(XMLTO xmlto)
  87
  88 write_file("${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/cmake_try_compile.c" "#include <stdarg.h>
  89         void f (int i, ...) {
  90         va_list args1, args2;
  91         va_start (args1, i);
  92         va_copy (args2, args1);
  93         if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
  94           exit (1);
  95         va_end (args1); va_end (args2);
  96         }
  97         int main() {
  98           f (0, 42);
  99           return 0;
 100         }
 101 ")
 102 try_compile(DBUS_HAVE_VA_COPY
 103             ${CMAKE_BINARY_DIR}
 104             ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/cmake_try_compile.c)
 105
 106 if(DBUS_HAVE_VA_COPY)
 107   SET(DBUS_VA_COPY va_copy CACHE STRING "va_copy function")
 108 else(DBUS_HAVE_VA_COPY)
 109   write_file("${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/cmake_try_compile.c" "#include <stdarg.h>
 110           void f (int i, ...) {
 111           va_list args1, args2;
 112           va_start (args1, i);
 113           __va_copy (args2, args1);
 114           if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
 115             exit (1);
 116           va_end (args1); va_end (args2);
 117           }
 118           int main() {
 119             f (0, 42);
 120             return 0;
 121           }
 122   ")
 123   try_compile(DBUS_HAVE_VA_COPY
 124               ${CMAKE_BINARY_DIR}
 125               ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/cmake_try_compile.c)
 126   if(DBUS_HAVE___VA_COPY)
 127     SET(DBUS_VA_COPY __va_copy CACHE STRING "va_copy function")
 128   endif(DBUS_HAVE___VA_COPY)
 129 endif(DBUS_HAVE_VA_COPY)