cmake_modules/CheckHaskellModuleExists.cmake
author sheepluva
Sun, 30 Nov 2014 17:20:37 +0100
changeset 10584 f44ec13e3082
parent 10109 91d126fbd7bd
child 10723 2cfa65083621
permissions -rw-r--r--
fix copypasta-fail that would cause splashes to use invalid sprite data pointer. should fix issue #838
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# Based on CheckLibraryExists.cmake from CMake
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#=============================================================================
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# Copyright 2002-2009 Kitware, Inc.
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#
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# Distributed under the OSI-approved BSD License
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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macro(CHECK_HASKELL_MODULE_EXISTS MODULE FUNCTION PARAMCOUNT LIBRARY)
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  set(VARIABLE "HS_MODULE_${LIBRARY}_${FUNCTION}")
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  if("${VARIABLE}" MATCHES "^${VARIABLE}$")
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    message(STATUS "Looking for ${FUNCTION} in ${MODULE}")
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    set(PARAMETERS "")
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    if(PARAMCOUNT GREATER 0)
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        foreach(__TRASH__ RANGE 1 ${PARAMCOUNT})
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            set(PARAMETERS "${PARAMETERS} undefined")
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        endforeach()
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    endif()
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    set(PARAMETERS "")
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    execute_process(COMMAND ${GHC_EXECUTABLE}
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                    "-DMODULE=${MODULE}"
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                    "-DFUNCTION=${FUNCTION}"
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                    "-DPARAMETERS=${PARAMETERS}"
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                    -cpp
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                    -c "${CMAKE_MODULE_PATH}/checkModule.hs"
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                    ERROR_VARIABLE BUILD_ERROR
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                    OUTPUT_STRIP_TRAILING_WHITESPACE
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                    )
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    if("${BUILD_ERROR}" STREQUAL "")
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      message(STATUS "Looking for ${FUNCTION} in ${MODULE} - found")
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      set(${VARIABLE} 1 CACHE INTERNAL "Have module ${MODULE}")
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      file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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        "Determining if the function ${FUNCTION} exists in the ${MODULE} passed\n\n")
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    else()
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      message(STATUS "Looking for ${FUNCTION} in ${MODULE} - not found")
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      set(${VARIABLE} "" CACHE INTERNAL "Have module ${MODULE}")
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      file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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        "Determining if the function ${FUNCTION} exists in the ${MODULE} "
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        "failed with the following output:\n"
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        "${BUILD_ERROR}\n\n")
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      message(FATAL_ERROR "Haskell library '${LIBRARY}' required")
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    endif()
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  endif()
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endmacro()