[daemon-fix] fixed getting uid and pid when transport is not kdbus
[platform/upstream/dbus.git] / cmake / modules / CheckStructMember.cmake
1 # - Check if the given struct or class has the specified member variable
2 # CHECK_STRUCT_MEMBER (STRUCT MEMBER HEADER VARIABLE)
3 #
4 #  STRUCT - the name of the struct or class you are interested in
5 #  MEMBER - the member which existence you want to check
6 #  HEADER - the header(s) where the prototype should be declared
7 #  VARIABLE - variable to store the result
8 #
9 # The following variables may be set before calling this macro to
10 # modify the way the check is run:
11 #
12 #  CMAKE_REQUIRED_FLAGS = string of compile command line flags
13 #  CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
14 #  CMAKE_REQUIRED_INCLUDES = list of include directories
15
16 INCLUDE(CheckCXXSourceCompiles)
17
18 MACRO (CHECK_STRUCT_MEMBER _STRUCT _MEMBER _HEADER _RESULT)
19    SET(_INCLUDE_FILES)
20    FOREACH (it ${_HEADER})
21       SET(_INCLUDE_FILES "${_INCLUDE_FILES}#include <${it}>\n")
22    ENDFOREACH (it)
23
24    SET(_CHECK_STRUCT_MEMBER_SOURCE_CODE "
25 ${_INCLUDE_FILES}
26 int main()
27 {
28    ${_STRUCT}* tmp;
29    tmp->${_MEMBER};
30   return 0;
31 }
32 ")
33    CHECK_CXX_SOURCE_COMPILES("${_CHECK_STRUCT_MEMBER_SOURCE_CODE}" ${_RESULT})
34
35 ENDMACRO (CHECK_STRUCT_MEMBER)
36