|
|
|
|
# - Check if the given struct or class has the specified member variable
|
|
|
|
|
# CHECK_STRUCT_HAS_MEMBER (STRUCT MEMBER HEADER VARIABLE)
|
|
|
|
|
#
|
|
|
|
|
# STRUCT - the name of the struct or class you are interested in
|
|
|
|
|
# MEMBER - the member which existence you want to check
|
|
|
|
|
# HEADER - the header(s) where the prototype should be declared
|
|
|
|
|
# VARIABLE - variable to store the result
|
|
|
|
|
#
|
|
|
|
|
# The following variables may be set before calling this macro to
|
|
|
|
|
# modify the way the check is run:
|
|
|
|
|
#
|
|
|
|
|
# CMAKE_REQUIRED_FLAGS = string of compile command line flags
|
|
|
|
|
# CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
|
|
|
|
|
# CMAKE_REQUIRED_INCLUDES = list of include directories
|
|
|
|
|
#
|
|
|
|
|
# Example: CHECK_STRUCT_HAS_MEMBER("struct timeval" tv_sec sys/select.h HAVE_TIMEVAL_TV_SEC)
|
|
|
|
|
|
|
|
|
|
#=============================================================================
|
|
|
|
|
# Copyright 2007-2009 Kitware, Inc.
|
|
|
|
|
#
|
|
|
|
|
# Distributed under the OSI-approved BSD License (the "License");
|
|
|
|
|
# see accompanying file Copyright.txt for details.
|
|
|
|
|
#
|
|
|
|
|
# This software is distributed WITHOUT ANY WARRANTY; without even the
|
|
|
|
|
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
|
|
|
# See the License for more information.
|
|
|
|
|
#=============================================================================
|
|
|
|
|
# (To distributed this file outside of CMake, substitute the full
|
|
|
|
|
# License text for the above reference.)
|
|
|
|
|
|
|
|
|
|
INCLUDE(CheckCSourceCompiles)
|
|
|
|
|
|
|
|
|
|
MACRO (CHECK_STRUCT_HAS_MEMBER _STRUCT _MEMBER _HEADER _RESULT)
|
|
|
|
|
SET(_INCLUDE_FILES)
|
|
|
|
|
FOREACH (it ${_HEADER})
|
|
|
|
|
SET(_INCLUDE_FILES "${_INCLUDE_FILES}#include <${it}>\n")
|
|
|
|
|
ENDFOREACH (it)
|
|
|
|
|
|
|
|
|
|
SET(_CHECK_STRUCT_MEMBER_SOURCE_CODE "
|
|
|
|
|
${_INCLUDE_FILES}
|
|
|
|
|
int main()
|
|
|
|
|
{
|
|
|
|
|
${_STRUCT}* tmp;
|
|
|
|
|
tmp->${_MEMBER};
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
")
|
|
|
|
|
CHECK_C_SOURCE_COMPILES("${_CHECK_STRUCT_MEMBER_SOURCE_CODE}" ${_RESULT})
|
|
|
|
|
|
|
|
|
|
ENDMACRO (CHECK_STRUCT_HAS_MEMBER)
|
|
|
|
|
|
