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Diffstat (limited to 'config/cmake_ext_mod/HDFUseCXX.cmake')
| -rw-r--r-- | config/cmake_ext_mod/HDFUseCXX.cmake | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/config/cmake_ext_mod/HDFUseCXX.cmake b/config/cmake_ext_mod/HDFUseCXX.cmake new file mode 100644 index 0000000..3afcdb6 --- /dev/null +++ b/config/cmake_ext_mod/HDFUseCXX.cmake @@ -0,0 +1,109 @@ +# +# Copyright by The HDF Group. +# All rights reserved. +# +# This file is part of HDF5. The full HDF5 copyright notice, including +# terms governing use, modification, and redistribution, is contained in +# the COPYING file, which can be found at the root of the source code +# distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. +# If you do not have access to either file, you may request a copy from +# help@hdfgroup.org. +# +# +# This file provides functions for C++ support. +# +#------------------------------------------------------------------------------- +ENABLE_LANGUAGE (CXX) +set (HDF_PREFIX "H5") + +#------------------------------------------------------------------------------- +# Fix CXX flags if we are compiling staticly on Windows using +# Windows_MT.cmake from config/cmake/UserMacros +#------------------------------------------------------------------------------- +if (BUILD_STATIC_CRT_LIBS) + TARGET_STATIC_CRT_FLAGS () +endif () + +#----------------------------------------------------------------------------- +# Configure Checks which require CXX compilation must go in here +# not in the main ConfigureChecks.cmake files, because if the user has +# no CXX compiler, problems arise. +#----------------------------------------------------------------------------- +include (CheckIncludeFileCXX) +include (TestForSTDNamespace) + +# IF the c compiler found stdint, check the C++ as well. On some systems this +# file will be found by C but not C++, only do this test IF the C++ compiler +# has been initialized (e.g. the project also includes some c++) +if (${HDF_PREFIX}_HAVE_STDINT_H AND CMAKE_CXX_COMPILER_LOADED) + CHECK_INCLUDE_FILE_CXX ("stdint.h" ${HDF_PREFIX}_HAVE_STDINT_H_CXX) + if (NOT ${HDF_PREFIX}_HAVE_STDINT_H_CXX) + set (${HDF_PREFIX}_HAVE_STDINT_H "" CACHE INTERNAL "Have includes HAVE_STDINT_H") + set (USE_INCLUDES ${USE_INCLUDES} "stdint.h") + endif () +endif () + +# For other CXX specific tests, use this MACRO. +macro (HDF_CXX_FUNCTION_TEST OTHER_TEST) + if (NOT DEFINED ${OTHER_TEST}) + set (MACRO_CHECK_FUNCTION_DEFINITIONS "-D${OTHER_TEST} ${CMAKE_REQUIRED_FLAGS}") + set (OTHER_TEST_ADD_LIBRARIES) + if (CMAKE_REQUIRED_LIBRARIES) + set (OTHER_TEST_ADD_LIBRARIES "-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}") + endif () + + foreach (def + HAVE_SYS_TIME_H + HAVE_UNISTD_H + HAVE_SYS_TYPES_H + HAVE_SYS_SOCKET_H + HAVE_SYS_FILE_H + ) + if ("${${HDF_PREFIX}_${def}}") + set (MACRO_CHECK_FUNCTION_DEFINITIONS "${MACRO_CHECK_FUNCTION_DEFINITIONS} -D${def}") + endif () + endforeach () + + if (LARGEFILE) + set (MACRO_CHECK_FUNCTION_DEFINITIONS + "${MACRO_CHECK_FUNCTION_DEFINITIONS} -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE" + ) + endif () + + #message (STATUS "Performing ${OTHER_TEST}") + TRY_COMPILE (${OTHER_TEST} + ${CMAKE_BINARY_DIR} + ${HDF_RESOURCES_EXT_DIR}/HDFCXXTests.cpp + CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_FUNCTION_DEFINITIONS} + "${OTHER_TEST_ADD_LIBRARIES}" + OUTPUT_VARIABLE OUTPUT + ) + if (${OTHER_TEST} EQUAL 0) + set (${OTHER_TEST} 1 CACHE INTERNAL "CXX test ${FUNCTION}") + message (STATUS "Performing CXX Test ${OTHER_TEST} - Success") + else () + message (STATUS "Performing CXX Test ${OTHER_TEST} - Failed") + set (${OTHER_TEST} "" CACHE INTERNAL "CXX test ${FUNCTION}") + file (APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeError.log + "Performing CXX Test ${OTHER_TEST} failed with the following output:\n" + "${OUTPUT}\n" + ) + endif () + endif () +endmacro () + +#----------------------------------------------------------------------------- +# Check a bunch of cxx functions +#----------------------------------------------------------------------------- +if (CMAKE_CXX_COMPILER_LOADED) + foreach (test + OLD_HEADER_FILENAME + ${HDF_PREFIX}_NO_NAMESPACE + ${HDF_PREFIX}_NO_STD + BOOL_NOTDEFINED + NO_STATIC_CAST + ${HDF_PREFIX}_CXX_HAVE_OFFSETOF + ) + HDF_CXX_FUNCTION_TEST (${test}) + endforeach () +endif () |