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poco/build/script/cpp11-clang
Günter Obiltschnig 06373b5d0c remove '$Id$' headers
2017-09-09 10:50:32 +02:00

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#! /bin/sh
#
# cpp11-clang
#
# Detect compatible Clang version and add c++11/14 flags
#
CLANGMAJOR := $(shell $(CXX) -x c++ /dev/null -dM -E | grep __clang_major__ | sed -e 's/^.* //g')
CLANGMINOR := $(shell $(CXX) -x c++ /dev/null -dM -E | grep __clang_minor__ | sed -e 's/^.* //g')
CLANGPATCH := $(shell $(CXX) -x c++ /dev/null -dM -E | grep __clang_patchlevel__ | sed -e 's/^.* //g')
CLANGVERSION := $(CLANGMAJOR)$(CLANGMINOR)$(CLANGPATCH)
#
# Clang 3.4 doesn't accept -std=c++14, only -std=c++1y.
#
# C++14 needs Clang 3.4
ifeq ($(shell test $(CLANGVERSION) -ge 340 && echo 1), 1)
CXXFLAGS += -std=c++1y
# C++11 needs Clang 3.3
else ifeq ($(shell test $(CLANGVERSION) -ge 330 && echo 1), 1)
CXXFLAGS += -std=c++0x
endif