1 # this module defines two macros:
2 # MACRO_PUSH_REQUIRED_VARS()
4 # MACRO_POP_REQUIRED_VARS()
5 # use these if you call cmake macros which use
6 # any of the CMAKE_REQUIRED_XXX variables
9 # MACRO_PUSH_REQUIRED_VARS()
10 # SET(CMAKE_REQUIRED_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS} -DSOME_MORE_DEF)
11 # CHECK_FUNCTION_EXISTS(...)
12 # MACRO_POP_REQUIRED_VARS()
14 # Copyright (c) 2006, Alexander Neundorf, <neundorf@kde.org>
16 # Redistribution and use is allowed according to the terms of the BSD license.
17 # For details see the accompanying COPYING-CMAKE-SCRIPTS file.
19 MACRO(MACRO_PUSH_REQUIRED_VARS)
21 IF(NOT DEFINED _PUSH_REQUIRED_VARS_COUNTER)
22 SET(_PUSH_REQUIRED_VARS_COUNTER 0)
23 ENDIF(NOT DEFINED _PUSH_REQUIRED_VARS_COUNTER)
25 MATH(EXPR _PUSH_REQUIRED_VARS_COUNTER "${_PUSH_REQUIRED_VARS_COUNTER}+1")
27 SET(_CMAKE_REQUIRED_INCLUDES_SAVE_${_PUSH_REQUIRED_VARS_COUNTER} ${CMAKE_REQUIRED_INCLUDES})
28 SET(_CMAKE_REQUIRED_DEFINITIONS_SAVE_${_PUSH_REQUIRED_VARS_COUNTER} ${CMAKE_REQUIRED_DEFINITIONS})
29 SET(_CMAKE_REQUIRED_LIBRARIES_SAVE_${_PUSH_REQUIRED_VARS_COUNTER} ${CMAKE_REQUIRED_LIBRARIES})
30 SET(_CMAKE_REQUIRED_FLAGS_SAVE_${_PUSH_REQUIRED_VARS_COUNTER} ${CMAKE_REQUIRED_FLAGS})
31 ENDMACRO(MACRO_PUSH_REQUIRED_VARS)
33 MACRO(MACRO_POP_REQUIRED_VARS)
35 # don't pop more than we pushed
36 IF("${_PUSH_REQUIRED_VARS_COUNTER}" GREATER "0")
38 SET(CMAKE_REQUIRED_INCLUDES ${_CMAKE_REQUIRED_INCLUDES_SAVE_${_PUSH_REQUIRED_VARS_COUNTER}})
39 SET(CMAKE_REQUIRED_DEFINITIONS ${_CMAKE_REQUIRED_DEFINITIONS_SAVE_${_PUSH_REQUIRED_VARS_COUNTER}})
40 SET(CMAKE_REQUIRED_LIBRARIES ${_CMAKE_REQUIRED_LIBRARIES_SAVE_${_PUSH_REQUIRED_VARS_COUNTER}})
41 SET(CMAKE_REQUIRED_FLAGS ${_CMAKE_REQUIRED_FLAGS_SAVE_${_PUSH_REQUIRED_VARS_COUNTER}})
43 MATH(EXPR _PUSH_REQUIRED_VARS_COUNTER "${_PUSH_REQUIRED_VARS_COUNTER}-1")
44 ENDIF("${_PUSH_REQUIRED_VARS_COUNTER}" GREATER "0")
46 ENDMACRO(MACRO_POP_REQUIRED_VARS)