hdf5/config/cmake_ext_mod/HDFUseCXX.cmake
2018-07-30 17:10:00 -05:00

110 lines
4.0 KiB
CMake

#
# 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_NO_NAMESPACE
HDF_NO_STD
BOOL_NOTDEFINED
NO_STATIC_CAST
CXX_HAVE_OFFSETOF
)
HDF_CXX_FUNCTION_TEST (${test})
endforeach ()
endif ()