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CXX=clang++-14
ifeq ($(shell which $(CXX)),)
CXX=clang++-13
endif
ifeq ($(shell which $(CXX)),)
CXX=clang++-11
endif
ifeq ($(shell which $(CXX)),)
CXX=g++-11
endif
ifeq ($(shell which $(CXX)),)
CXX=g++-10
endif
ifeq ($(shell which $(CXX)),)
CXX=g++-8
endif
ifeq ($(shell which $(CXX)),)
CXX=clang++
endif
ifeq ($(shell which $(CXX)),)
CXX=g++-10
endif
ifeq ($(shell which $(CXX)),)
CXX=g++-9
endif
ifeq ($(shell which $(CXX)),)
CXX=g++
endif
ifeq ($(LINK_STATICALLY),1)
LDFLAGS+=-static
endif
ifeq ($(CXXFLAGS),)
CXXFLAGS=-O2 -g -DNDEBUG
#CXXFLAGS=-O0 -g -D_DEBUG
endif
# -fprofile-instr-generate -fcoverage-mapping
# gcc:--coverage
CXXFLAGS+=-Wall
CXXFLAGS+=-Wpedantic -gdwarf-4
CXXFLAGS+=-fexceptions -Iexternal
ifeq ($(CXX),clang++-11)
CXXFLAGS+=-std=c++20 #-stdlib=libc++
CXXTYPE=clang++
LLVMPROFDATA=llvm-profdata-11
LLVMCOV=llvm-cov-11
else ifeq ($(CXX),clang++-14)
CXXFLAGS+=-std=c++20 #-stdlib=libc++
CXXTYPE=clang++
LLVMPROFDATA=llvm-profdata-14
LLVMCOV=llvm-cov-14
else ifeq ($(CXX),clang++-13)
CXXFLAGS+=-std=c++20 #-stdlib=libc++
CXXTYPE=clang++
LLVMPROFDATA=llvm-profdata-13
LLVMCOV=llvm-cov-13
else ifeq ($(CXX),clang++)
CXXFLAGS+=-std=c++20 #-stdlib=libc++
CXXTYPE=clang++
LLVMPROFDATA=llvm-profdata
LLVMCOV=llvm-cov
else ifeq ($(CXX),g++-11)
CXXFLAGS+=-std=c++20 #-stdlib=libc++
CXXTYPE=g++
else
CXXFLAGS+=-std=c++17
CXXTYPE=g++
endif
ifeq ($(CXX),clang++-11)
LIBS+= \
-fuse-ld=lld-11 \
-lstdc++
#-lc++ \
#-lc++abi
#-lc++fs
#-lstdc++fs
else ifeq ($(CXX),clang++-14)
LIBS+= \
-fuse-ld=lld-14 \
-lstdc++
else ifeq ($(CXX),clang++-13)
LIBS+= \
-fuse-ld=lld-13 \
-lstdc++
else
LIBS+= \
-lstdc++ \
-lstdc++fs
endif
LIBS+=-lboost_context -lboost_system -lpthread -lfmt
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