| # - Check if the system has the specified type |
| # CHECK_TYPE_EXISTS (TYPE HEADER VARIABLE) |
| # |
| # TYPE - the name of the type or struct or class you are interested in |
| # 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 |
| # Copyright (c) 2009, Michihiro NAKAJIMA |
| # Copyright (c) 2006, Alexander Neundorf, <neundorf@kde.org> |
| # |
| # Redistribution and use is allowed according to the terms of the BSD license. |
| # For details see the accompanying COPYING-CMAKE-SCRIPTS file. |
| |
| |
| INCLUDE(CheckCSourceCompiles) |
| |
| MACRO (CHECK_TYPE_EXISTS _TYPE _HEADER _RESULT) |
| SET(_INCLUDE_FILES) |
| FOREACH (it ${_HEADER}) |
| SET(_INCLUDE_FILES "${_INCLUDE_FILES}#include <${it}>\n") |
| ENDFOREACH (it) |
| |
| SET(_CHECK_TYPE_EXISTS_SOURCE_CODE " |
| ${_INCLUDE_FILES} |
| int main() |
| { |
| static ${_TYPE} tmp; |
| if (sizeof(tmp)) |
| return 0; |
| return 0; |
| } |
| ") |
| CHECK_C_SOURCE_COMPILES("${_CHECK_TYPE_EXISTS_SOURCE_CODE}" ${_RESULT}) |
| |
| ENDMACRO (CHECK_TYPE_EXISTS) |
| |