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In commit 'Create KWSYS_PLATFORM_INFO_TEST macro' (2009-11-20) we implemented the macro to use a cache entry to avoid re-running the try_compile(). However, the output copied from the try_compile is needed on every configure. If the user wipes out the build tree but not the cache file then the try_compile() will not re-run to recreate the needed file. We address the problem by teaching the macro to run the try_compile() whenever its output file does not exist.
217 lines
8.1 KiB
CMake
217 lines
8.1 KiB
CMake
#=============================================================================
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# KWSys - Kitware System Library
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# Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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#
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# Distributed under the OSI-approved BSD License (the "License");
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# see accompanying file Copyright.txt for details.
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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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SET(KWSYS_PLATFORM_TEST_FILE_C kwsysPlatformTestsC.c)
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SET(KWSYS_PLATFORM_TEST_FILE_CXX kwsysPlatformTestsCXX.cxx)
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MACRO(KWSYS_PLATFORM_TEST lang var description invert)
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IF("${var}_COMPILED" MATCHES "^${var}_COMPILED$")
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MESSAGE(STATUS "${description}")
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TRY_COMPILE(${var}_COMPILED
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${CMAKE_CURRENT_BINARY_DIR}
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${CMAKE_CURRENT_SOURCE_DIR}/${KWSYS_PLATFORM_TEST_FILE_${lang}}
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COMPILE_DEFINITIONS -DTEST_${var} ${KWSYS_PLATFORM_TEST_DEFINES} ${KWSYS_PLATFORM_TEST_EXTRA_FLAGS}
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OUTPUT_VARIABLE OUTPUT)
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IF(${var}_COMPILED)
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FILE(APPEND
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${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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"${description} compiled with the following output:\n${OUTPUT}\n\n")
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ELSE(${var}_COMPILED)
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FILE(APPEND
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${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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"${description} failed to compile with the following output:\n${OUTPUT}\n\n")
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ENDIF(${var}_COMPILED)
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IF(${invert} MATCHES INVERT)
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IF(${var}_COMPILED)
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MESSAGE(STATUS "${description} - no")
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ELSE(${var}_COMPILED)
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MESSAGE(STATUS "${description} - yes")
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ENDIF(${var}_COMPILED)
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ELSE(${invert} MATCHES INVERT)
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IF(${var}_COMPILED)
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MESSAGE(STATUS "${description} - yes")
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ELSE(${var}_COMPILED)
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MESSAGE(STATUS "${description} - no")
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ENDIF(${var}_COMPILED)
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ENDIF(${invert} MATCHES INVERT)
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ENDIF("${var}_COMPILED" MATCHES "^${var}_COMPILED$")
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IF(${invert} MATCHES INVERT)
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IF(${var}_COMPILED)
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SET(${var} 0)
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ELSE(${var}_COMPILED)
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SET(${var} 1)
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ENDIF(${var}_COMPILED)
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ELSE(${invert} MATCHES INVERT)
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IF(${var}_COMPILED)
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SET(${var} 1)
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ELSE(${var}_COMPILED)
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SET(${var} 0)
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ENDIF(${var}_COMPILED)
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ENDIF(${invert} MATCHES INVERT)
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ENDMACRO(KWSYS_PLATFORM_TEST)
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MACRO(KWSYS_PLATFORM_TEST_RUN lang var description invert)
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IF("${var}" MATCHES "^${var}$")
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MESSAGE(STATUS "${description}")
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TRY_RUN(${var} ${var}_COMPILED
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${CMAKE_CURRENT_BINARY_DIR}
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${CMAKE_CURRENT_SOURCE_DIR}/${KWSYS_PLATFORM_TEST_FILE_${lang}}
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COMPILE_DEFINITIONS -DTEST_${var} ${KWSYS_PLATFORM_TEST_DEFINES} ${KWSYS_PLATFORM_TEST_EXTRA_FLAGS}
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OUTPUT_VARIABLE OUTPUT)
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# Note that ${var} will be a 0 return value on success.
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IF(${var}_COMPILED)
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IF(${var})
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FILE(APPEND
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${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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"${description} compiled but failed to run with the following output:\n${OUTPUT}\n\n")
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ELSE(${var})
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FILE(APPEND
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${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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"${description} compiled and ran with the following output:\n${OUTPUT}\n\n")
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ENDIF(${var})
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ELSE(${var}_COMPILED)
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FILE(APPEND
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${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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"${description} failed to compile with the following output:\n${OUTPUT}\n\n")
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SET(${var} -1 CACHE INTERNAL "${description} failed to compile.")
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ENDIF(${var}_COMPILED)
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IF(${invert} MATCHES INVERT)
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IF(${var}_COMPILED)
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IF(${var})
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MESSAGE(STATUS "${description} - yes")
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ELSE(${var})
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MESSAGE(STATUS "${description} - no")
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ENDIF(${var})
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ELSE(${var}_COMPILED)
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MESSAGE(STATUS "${description} - failed to compile")
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ENDIF(${var}_COMPILED)
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ELSE(${invert} MATCHES INVERT)
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IF(${var}_COMPILED)
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IF(${var})
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MESSAGE(STATUS "${description} - no")
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ELSE(${var})
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MESSAGE(STATUS "${description} - yes")
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ENDIF(${var})
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ELSE(${var}_COMPILED)
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MESSAGE(STATUS "${description} - failed to compile")
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ENDIF(${var}_COMPILED)
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ENDIF(${invert} MATCHES INVERT)
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ENDIF("${var}" MATCHES "^${var}$")
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IF(${invert} MATCHES INVERT)
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IF(${var}_COMPILED)
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IF(${var})
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SET(${var} 1)
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ELSE(${var})
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SET(${var} 0)
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ENDIF(${var})
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ELSE(${var}_COMPILED)
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SET(${var} 1)
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ENDIF(${var}_COMPILED)
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ELSE(${invert} MATCHES INVERT)
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IF(${var}_COMPILED)
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IF(${var})
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SET(${var} 0)
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ELSE(${var})
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SET(${var} 1)
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ENDIF(${var})
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ELSE(${var}_COMPILED)
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SET(${var} 0)
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ENDIF(${var}_COMPILED)
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ENDIF(${invert} MATCHES INVERT)
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ENDMACRO(KWSYS_PLATFORM_TEST_RUN)
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MACRO(KWSYS_PLATFORM_C_TEST var description invert)
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SET(KWSYS_PLATFORM_TEST_DEFINES ${KWSYS_PLATFORM_C_TEST_DEFINES})
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SET(KWSYS_PLATFORM_TEST_EXTRA_FLAGS ${KWSYS_PLATFORM_C_TEST_EXTRA_FLAGS})
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KWSYS_PLATFORM_TEST(C "${var}" "${description}" "${invert}")
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SET(KWSYS_PLATFORM_TEST_DEFINES)
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SET(KWSYS_PLATFORM_TEST_EXTRA_FLAGS)
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ENDMACRO(KWSYS_PLATFORM_C_TEST)
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MACRO(KWSYS_PLATFORM_C_TEST_RUN var description invert)
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SET(KWSYS_PLATFORM_TEST_DEFINES ${KWSYS_PLATFORM_C_TEST_DEFINES})
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SET(KWSYS_PLATFORM_TEST_EXTRA_FLAGS ${KWSYS_PLATFORM_C_TEST_EXTRA_FLAGS})
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KWSYS_PLATFORM_TEST_RUN(C "${var}" "${description}" "${invert}")
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SET(KWSYS_PLATFORM_TEST_DEFINES)
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SET(KWSYS_PLATFORM_TEST_EXTRA_FLAGS)
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ENDMACRO(KWSYS_PLATFORM_C_TEST_RUN)
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MACRO(KWSYS_PLATFORM_CXX_TEST var description invert)
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SET(KWSYS_PLATFORM_TEST_DEFINES ${KWSYS_PLATFORM_CXX_TEST_DEFINES})
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SET(KWSYS_PLATFORM_TEST_EXTRA_FLAGS ${KWSYS_PLATFORM_CXX_TEST_EXTRA_FLAGS})
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KWSYS_PLATFORM_TEST(CXX "${var}" "${description}" "${invert}")
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SET(KWSYS_PLATFORM_TEST_DEFINES)
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SET(KWSYS_PLATFORM_TEST_EXTRA_FLAGS)
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ENDMACRO(KWSYS_PLATFORM_CXX_TEST)
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MACRO(KWSYS_PLATFORM_CXX_TEST_RUN var description invert)
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SET(KWSYS_PLATFORM_TEST_DEFINES ${KWSYS_PLATFORM_CXX_TEST_DEFINES})
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SET(KWSYS_PLATFORM_TEST_EXTRA_FLAGS ${KWSYS_PLATFORM_CXX_TEST_EXTRA_FLAGS})
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KWSYS_PLATFORM_TEST_RUN(CXX "${var}" "${description}" "${invert}")
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SET(KWSYS_PLATFORM_TEST_DEFINES)
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SET(KWSYS_PLATFORM_TEST_EXTRA_FLAGS)
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ENDMACRO(KWSYS_PLATFORM_CXX_TEST_RUN)
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#-----------------------------------------------------------------------------
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# KWSYS_PLATFORM_INFO_TEST(lang var description)
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#
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# Compile test named by ${var} and store INFO strings extracted from binary.
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MACRO(KWSYS_PLATFORM_INFO_TEST lang var description)
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# We can implement this macro on CMake 2.6 and above.
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IF("${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}" LESS 2.6)
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SET(${var} "")
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ELSE()
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# Choose a location for the result binary.
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SET(KWSYS_PLATFORM_INFO_FILE
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${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_FILES_DIRECTORY}/${var}.bin)
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# Compile the test binary.
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IF(NOT EXISTS ${KWSYS_PLATFORM_INFO_FILE})
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MESSAGE(STATUS "${description}")
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TRY_COMPILE(${var}_COMPILED
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${CMAKE_CURRENT_BINARY_DIR}
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${CMAKE_CURRENT_SOURCE_DIR}/${KWSYS_PLATFORM_TEST_FILE_${lang}}
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COMPILE_DEFINITIONS -DTEST_${var}
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${KWSYS_PLATFORM_${lang}_TEST_DEFINES}
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${KWSYS_PLATFORM_${lang}_TEST_EXTRA_FLAGS}
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OUTPUT_VARIABLE OUTPUT
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COPY_FILE ${KWSYS_PLATFORM_INFO_FILE}
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)
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IF(${var}_COMPILED)
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FILE(APPEND
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${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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"${description} compiled with the following output:\n${OUTPUT}\n\n")
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ELSE()
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FILE(APPEND
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${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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"${description} failed to compile with the following output:\n${OUTPUT}\n\n")
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ENDIF()
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IF(${var}_COMPILED)
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MESSAGE(STATUS "${description} - compiled")
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ELSE()
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MESSAGE(STATUS "${description} - failed")
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ENDIF()
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ENDIF()
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# Parse info strings out of the compiled binary.
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IF(${var}_COMPILED)
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FILE(STRINGS ${KWSYS_PLATFORM_INFO_FILE} ${var} REGEX "INFO:[A-Za-z0-9]+\\[[^]]*\\]")
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ELSE()
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SET(${var} "")
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ENDIF()
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SET(KWSYS_PLATFORM_INFO_FILE)
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ENDIF()
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ENDMACRO()
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