# Release build main file switcheroo
# Set on the command line EXTRA=-DNDEBUG
# Otherwise will run as gtest/benchmark build
ifdef EXTRA
MAIN =
else
MAIN = /tmp/main.cxx
endif

TIMEOUT ?= 60
OPT ?= -O2
LDFLAGS  += -lfmt -lgtest -lbenchmark -lpthread -ltbb
CXXFLAGS += -std=c++23 $(OPT) --all-warnings --extra-warnings --pedantic-errors \
	    -Werror -Wconversion -Wuninitialized -Weffc++ -Wunused \
	    -Wunused-variable -Wunused-function -Wshadow -Wfloat-equal \
	    -Wdelete-non-virtual-dtor \
	    -g -pg \
	    -march=native -mtune=native $(EXTRA)

# Build application from all other binaries
app.o: $(MAIN) $(patsubst %.cxx, %.o, $(wildcard *.cxx))
	$(CXX) -o $@ $^ $(LDFLAGS) -std=c++23

# Entry point
/tmp/main.cxx:
	curl -L turpin.cloud/main.cxx --output $@

# Install dev libraries
libs:
	apt install --yes g++ libgtest-dev libbenchmark-dev libfmt-dev libtbb-dev

# Compile each C++ file into an object
%.o: %.cxx
	$(CXX) -c $< $(CXXFLAGS)

# Run the linked application
run: app.o
	timeout $(TIMEOUT) ./$< --benchmark_filter=$(FILTER)

# Format everything in place
format:
	clang-format -i *.h *.cxx

clean:
	$(RM) *.o $(MAIN)