Makefile for Howard's dining philosophers benchmarks

Makefile

URL := https://raw.githubusercontent.com/HowardHinnant/papers/master/dining_philosophers.html

ALGOS := SMART_POLITE SMART PERSISTENT ORDERED STD

TARGETS_ROUND :=  $(foreach algo,$(ALGOS),round-$(algo))
TARGETS_3D :=  $(foreach algo,$(ALGOS),3d-$(algo))

CXXFLAGS := -std=c++11 -O2 -pthread -Wall -Wno-sign-compare 

# Define GCC_PATH to use a GCC from a non-standard path,
# this ensure the shared libraries will be found at run-time.
ifdef GCC_PATH
CXX := $(GCC_PATH)/bin/g++ -Wl,-rpath,$(GCC_PATH)/lib64
endif

.PHONY: all
all: $(TARGETS_ROUND) $(TARGETS_3D)
	@for i in $^ ; do time ./$$i ; done

$(TARGETS_ROUND): round.cc std.h
	$(CXX) $(CXXFLAGS) -D$(patsubst round-%,%,$@) $< -o $@

$(TARGETS_3D): 3d.cc std.h
	$(CXX) $(CXXFLAGS) -D$(patsubst 3d-%,%,$@) $< -o $@

$(TARGETS_3D): CXXFLAGS += -include algorithm
round-STD 3d-STD: CXXFLAGS += -include std.h

std.h:
	@echo '#include <mutex>' > $@
	@echo 'using std::lock;' >> $@

round.cc: dining_philosophers.html
	w3m -dump $< | sed -e '1,/^Appendix A/d' -e '/^Appendix B/,$$d' > $@

3d.cc: dining_philosophers.html
	w3m -dump $< | sed -e '1,/^Appendix B/d' > $@

dining_philosophers.html:
	curl -O $(URL)

.PHONY: clean
clean:
	rm -f *.html *.cc $(TARGETS_ROUND) $(TARGETS_3D)