diff options
Diffstat (limited to 'cmake/modules/MacroPushRequiredVars.cmake')
| -rw-r--r-- | cmake/modules/MacroPushRequiredVars.cmake | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/cmake/modules/MacroPushRequiredVars.cmake b/cmake/modules/MacroPushRequiredVars.cmake new file mode 100644 index 000000000..650b566ee --- /dev/null +++ b/cmake/modules/MacroPushRequiredVars.cmake @@ -0,0 +1,47 @@ +# this module defines two macros: +# MACRO_PUSH_REQUIRED_VARS() +# and +# MACRO_POP_REQUIRED_VARS() +# use these if you call cmake macros which use +# any of the CMAKE_REQUIRED_XXX variables +# +# Usage: +# MACRO_PUSH_REQUIRED_VARS() +# SET(CMAKE_REQUIRED_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS} -DSOME_MORE_DEF) +# CHECK_FUNCTION_EXISTS(...) +# MACRO_POP_REQUIRED_VARS() + +# Copyright (c) 2006, Alexander Neundorf, <neundorf@kde.org> +# +# Redistribution and use is allowed according to the terms of the BSD license. +# For details see the accompanying COPYING-CMAKE-SCRIPTS file. + +MACRO(MACRO_PUSH_REQUIRED_VARS) + + IF(NOT DEFINED _PUSH_REQUIRED_VARS_COUNTER) + SET(_PUSH_REQUIRED_VARS_COUNTER 0) + ENDIF(NOT DEFINED _PUSH_REQUIRED_VARS_COUNTER) + + MATH(EXPR _PUSH_REQUIRED_VARS_COUNTER "${_PUSH_REQUIRED_VARS_COUNTER}+1") + + SET(_CMAKE_REQUIRED_INCLUDES_SAVE_${_PUSH_REQUIRED_VARS_COUNTER} ${CMAKE_REQUIRED_INCLUDES}) + SET(_CMAKE_REQUIRED_DEFINITIONS_SAVE_${_PUSH_REQUIRED_VARS_COUNTER} ${CMAKE_REQUIRED_DEFINITIONS}) + SET(_CMAKE_REQUIRED_LIBRARIES_SAVE_${_PUSH_REQUIRED_VARS_COUNTER} ${CMAKE_REQUIRED_LIBRARIES}) + SET(_CMAKE_REQUIRED_FLAGS_SAVE_${_PUSH_REQUIRED_VARS_COUNTER} ${CMAKE_REQUIRED_FLAGS}) +ENDMACRO(MACRO_PUSH_REQUIRED_VARS) + +MACRO(MACRO_POP_REQUIRED_VARS) + +# don't pop more than we pushed + IF("${_PUSH_REQUIRED_VARS_COUNTER}" GREATER "0") + + SET(CMAKE_REQUIRED_INCLUDES ${_CMAKE_REQUIRED_INCLUDES_SAVE_${_PUSH_REQUIRED_VARS_COUNTER}}) + SET(CMAKE_REQUIRED_DEFINITIONS ${_CMAKE_REQUIRED_DEFINITIONS_SAVE_${_PUSH_REQUIRED_VARS_COUNTER}}) + SET(CMAKE_REQUIRED_LIBRARIES ${_CMAKE_REQUIRED_LIBRARIES_SAVE_${_PUSH_REQUIRED_VARS_COUNTER}}) + SET(CMAKE_REQUIRED_FLAGS ${_CMAKE_REQUIRED_FLAGS_SAVE_${_PUSH_REQUIRED_VARS_COUNTER}}) + + MATH(EXPR _PUSH_REQUIRED_VARS_COUNTER "${_PUSH_REQUIRED_VARS_COUNTER}-1") + ENDIF("${_PUSH_REQUIRED_VARS_COUNTER}" GREATER "0") + +ENDMACRO(MACRO_POP_REQUIRED_VARS) + |