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#
# This file is open source software, licensed to you under the terms
# of the Apache License, Version 2.0 (the "License"). See the NOTICE file
# distributed with this work for additional information regarding copyright
# ownership. You may not use this file except in compliance with the License.
#
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
#
#
# Copyright (C) 2018 Scylladb, Ltd.
#
include (CheckCXXSourceCompiles)
file (READ ${CMAKE_CURRENT_LIST_DIR}/code_tests/StdFilesystem_test.cc _stdfilesystem_test_code)
macro (_stdfilesystem_check_compiles var)
set (libraries ${ARGN})
set (CMAKE_REQUIRED_LIBRARIES ${libraries})
set (CMAKE_REQUIRED_FLAGS -std=gnu++14)
check_cxx_source_compiles ("${_stdfilesystem_test_code}" ${var})
endmacro ()
# Try to compile without the library first.
_stdfilesystem_check_compiles (StdFilesystem_NO_EXPLICIT_LINK)
if (StdFilesystem_NO_EXPLICIT_LINK)
set (StdFilesystem_FOUND yes)
else ()
_stdfilesystem_check_compiles (StdFilesystem_STDCXXFS_LIBRARY
stdc++fs)
if (StdFilesystem_STDCXXFS_LIBRARY)
set (StdFilesystem_LIBRARY_NAME stdc++fs)
else ()
# Try libc++.
_stdfilesystem_check_compiles (StdFilesystem_CXXEXPERIMENTAL_LIBRARY
libc++experimental)
if (StdFilesystem_CXXEXPERIMENTAL_LIBRARY)
set (StdFilesystem_LIBRARY_NAME c++experimental)
endif ()
endif ()
if (StdFilesystem_LIBRARY_NAME)
set (StdFilesystem_LIBRARIES -l${StdFilesystem_LIBRARY_NAME})
endif ()
include (FindPackageHandleStandardArgs)
find_package_handle_standard_args (StdFilesystem
REQUIRED_VARS StdFilesystem_LIBRARY_NAME)
endif ()
if (StdFilesystem_FOUND AND NOT (TARGET StdFilesystem::filesystem))
add_library (StdFilesystem::filesystem INTERFACE IMPORTED)
set_target_properties (StdFilesystem::filesystem
PROPERTIES
INTERFACE_LINK_LIBRARIES ${StdFilesystem_LIBRARIES})
endif ()
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