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
  40 check_struct_member(cmsgcred cmcred_pid "sys/types.h sys/socket.h" HAVE_CMSGCRED)   #  dbus-sysdeps.c
  41
  42 # missing:
  43 # HAVE_ABSTRACT_SOCKETS
  44 # DBUS_HAVE_GCC33_GCOV
  45
  46 check_type_size("short"     SIZEOF_SHORT)
  47 check_type_size("int"       SIZEOF_INT)
  48 check_type_size("long"      SIZEOF_LONG)
  49 check_type_size("long long" SIZEOF_LONG_LONG)
  50 check_type_size("__int64"   SIZEOF___INT64)
  51
  52 # DBUS_INT64_TYPE
  53 if(SIZEOF_INT EQUAL 8)
  54     set (DBUS_INT64_TYPE "int")
  55     set (DBUS_INT64_CONSTANT  "(val)")
  56     set (DBUS_UINT64_CONSTANT "(val##U)")
  57 elseif(SIZEOF_LONG EQUAL 8)
  58     set (DBUS_INT64_TYPE "long")
  59     set (DBUS_INT64_CONSTANT  "(val##L)")
  60     set (DBUS_UINT64_CONSTANT "(val##UL)")
  61 elseif(SIZEOF_LONG_LONG EQUAL 8)
  62     set (DBUS_INT64_TYPE "long long")
  63     set (DBUS_INT64_CONSTANT  "(val##LL)")
  64     set (DBUS_UINT64_CONSTANT "(val##ULL)")
  65 elseif(SIZEOF___INT64 EQUAL 8)
  66     set (DBUS_INT64_TYPE "__int64")
  67     set (DBUS_INT64_CONSTANT  "(val##i64)")
  68     set (DBUS_UINT64_CONSTANT "(val##ui64)")
  69 else(SIZEOF_INT EQUAL 8)
  70     message (FATAL_ERROR "Could not find a 64-bit integer type")
  71 endif(SIZEOF_INT EQUAL 8)
  72
  73 # DBUS_INT32_TYPE
  74 if(SIZEOF_INT EQUAL 4)
  75     set (DBUS_INT32_TYPE "int")
  76 elseif(SIZEOF_LONG EQUAL 4)
  77     set (DBUS_INT32_TYPE "long")
  78 elseif(SIZEOF_LONG_LONG EQUAL 4)
  79     set (DBUS_INT32_TYPE "long long")
  80 endif(SIZEOF_INT EQUAL 4)
  81
  82 # DBUS_INT16_TYPE
  83 if(SIZEOF_INT EQUAL 2)
  84     set (DBUS_INT16_TYPE "int")
  85 elseif(SIZEOF_SHORT EQUAL 2)
  86     set (DBUS_INT16_TYPE "short")
  87 endif(SIZEOF_INT EQUAL 2)
  88
  89 find_program(DOXYGEN doxygen)
  90 find_program(XMLTO xmlto)
  91
  92 if(MSVC)
  93    SET(DBUS_VA_COPY_FUNC "_DBUS_VA_COPY_ASSIGN";)
  94 else(MSVC)
  95 write_file("${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/cmake_try_compile.c" "#include <stdarg.h>
  96         #include <stdlib.h>
  97         static void f (int i, ...) {
  98         va_list args1, args2;
  99         va_start (args1, i);
 100         va_copy (args2, args1);
 101         if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
 102           exit (1);
 103         va_end (args1); va_end (args2);
 104         }
 105         int main() {
 106           f (0, 42);
 107           return 0;
 108         }
 109 ")
 110 try_compile(DBUS_HAVE_VA_COPY
 111             ${CMAKE_BINARY_DIR}
 112             ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/cmake_try_compile.c)
 113
 114 if(DBUS_HAVE_VA_COPY)
 115   SET(DBUS_VA_COPY_FUNC va_copy CACHE STRING "va_copy function")
 116 else(DBUS_HAVE_VA_COPY)
 117   write_file("${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/cmake_try_compile.c" "#include <stdarg.h>
 118           #include <stdlib.h>
 119           static void f (int i, ...) {
 120           va_list args1, args2;
 121           va_start (args1, i);
 122           __va_copy (args2, args1);
 123           if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
 124             exit (1);
 125           va_end (args1); va_end (args2);
 126           }
 127           int main() {
 128             f (0, 42);
 129             return 0;
 130           }
 131   ")
 132   try_compile(DBUS_HAVE___VA_COPY
 133               ${CMAKE_BINARY_DIR}
 134               ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/cmake_try_compile.c)
 135   if(DBUS_HAVE___VA_COPY)
 136     SET(DBUS_VA_COPY_FUNC __va_copy CACHE STRING "va_copy function")
 137   else(DBUS_HAVE___VA_COPY)
 138     SET(DBUS_VA_COPY_AS_ARRAY "1" CACHE STRING "'va_lists' cannot be copies as values")
 139   endif(DBUS_HAVE___VA_COPY)
 140 endif(DBUS_HAVE_VA_COPY)
 141 endif(MSVC) # _not_ MSVC
 142 #### Abstract sockets
 143
 144 if (DBUS_ENABLE_ABSTRACT_SOCKETS)
 145
 146   try_compile(HAVE_ABSTRACT_SOCKETS
 147               ${CMAKE_BINARY_DIR}
 148               ${CMAKE_SOURCE_DIR}/modules/CheckForAbstractSockets.c)
 149
 150 endif(DBUS_ENABLE_ABSTRACT_SOCKETS)
 151
 152 if(HAVE_ABSTRACT_SOCKETS)
 153   set(DBUS_PATH_OR_ABSTRACT_VALUE abstract)
 154 else(HAVE_ABSTRACT_SOCKETS)
 155   set(DBUS_PATH_OR_ABSTRACT_VALUE path)
 156 endif(HAVE_ABSTRACT_SOCKETS)
 157