max@0: # - Check if the prototype for a non-overloaded function exists in a specified namespace.
max@0: # ARMA_CHECK_PROTO (FUNCTION NAMESPACE HEADER VARIABLE)
max@0: #
max@0: #  FUNCTION  - the name of the function you are looking for
max@0: #  NAMESPACE - the name of the namespace
max@0: #  HEADER    - the header(s) where the prototype should be declared
max@0: #  VARIABLE  - variable to store the result
max@0: #
max@0: # The following variables may be set before calling this macro to
max@0: # modify the way the check is run:
max@0: #
max@0: #  CMAKE_REQUIRED_FLAGS = string of compile command line flags
max@0: #  CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
max@0: #  CMAKE_REQUIRED_INCLUDES = list of include directories
max@0: 
max@0: # adapted from "CheckPrototypeExists.cmake"
max@0: # ( http://websvn.kde.org/trunk/KDE/kdelibs/cmake/modules/CheckPrototypeExists.cmake )
max@0: # on 2009-06-19 by Conrad Sanderson (conradsand at ieee dot org)
max@0: 
max@0: # original copyright for "CheckPrototypeExists.cmake":
max@0: # 
max@0: # Copyright (c) 2006, Alexander Neundorf, <neundorf@kde.org>
max@0: #
max@0: # Redistribution and use is allowed according to the terms of the BSD license.
max@0: # For details see the accompanying COPYING-CMAKE-SCRIPTS file.
max@0: 
max@0: 
max@0: INCLUDE(CheckCXXSourceCompiles)
max@0: 
max@0: MACRO (ARMA_CHECK_PROTO _SYMBOL _NAMESPACE _HEADER _RESULT)
max@0: 
max@0:   SET(_INCLUDE_FILES)
max@0: 
max@0:   FOREACH (it ${_HEADER})
max@0:     SET(_INCLUDE_FILES "${_INCLUDE_FILES}#include <${it}>\n")
max@0:   ENDFOREACH (it)
max@0: 
max@0:   SET(_TMP_SOURCE_CODE "
max@0: ${_INCLUDE_FILES}
max@0: int
max@0: main()
max@0:   {
max@0:   #if !defined(${_SYMBOL})
max@0:     int i = sizeof(&(${_NAMESPACE}::${_SYMBOL}));
max@0:   #endif
max@0:   return 0;
max@0:   }
max@0: ")
max@0: 
max@0:   CHECK_CXX_SOURCE_COMPILES("${_TMP_SOURCE_CODE}" ${_RESULT})
max@0: 
max@0: ENDMACRO (ARMA_CHECK_PROTO _SYMBOL _NAMESPACE _HEADER _RESULT)
max@0: