CXX=clang++-7 -stdlib=libc++
CXXFLAGS=-stdlib=libc++ -Wall -O2 -std=c++17
#-march=native -mtune=native # is not better for llvm

# libstdc++-8 doesn't have transform_reduce
#CXX=g++-8
#CXXFLAGS=-Wall -O2 -std=c++17 -nostdinc++ -I/usr/lib/llvm-7/include/c++/v1 -nodefaultlibs -lc++ -lc++abi -lm -lc -lgcc_s -lgcc
# -march=native -mtune=native # doesn't help for gcc

all: fft

fft: fft.o main.o
	$(CXX) $(CXXFLAGS) -o $@ $^

fft.o: fft.cpp fft.h
	$(CXX) $(CXXFLAGS) -c -o $@ $<

main.o: main.cpp fft.h
	$(CXX) $(CXXFLAGS) -c -o $@ $<

install:

clean:
	rm -f fft

.PHONY: clean