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# Copyright (c) 2005-2018 Intel Corporation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# 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.
#
#
#
#
# detect if a compiler can support C++11
# If CXX0XFLAGS already set, do not change it
ifneq (,$(findstring $(CXX), icc icpc clang++))
# every supported icc or clang is OK
CXX0XFLAGS ?= -std=c++0x
else
ifneq (,$(findstring $(CXX), g++ gcc))
ifneq (, $(strip $(shell $(CXX) -v 2>&1 | grep "clang-")))
# This is clang actually,
# every supported clang is OK
CXX0XFLAGS ?= -std=c++0x
else
# support of lambda started GCC 4.5
ifneq (, $(strip $(shell g++ -dumpversion | egrep "^(4\.[5-9]|[5-9])")))
CXX0XFLAGS ?= -std=c++0x
endif
endif
endif
endif
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