Makefile

SHELL := /bin/bash 

EIGENOPTFLAGS=-O3 -ffast-math -DNDEBUG

all: util_entropy libfwdbwd libsparsetopics libsparseresp libsparseManyDocs

clean:
	rm -rf dist/
	rm -rf build/
	rm -rf bnpy.egg-info/	

# Rule: compile C extension via cython for fast calculation of entropy
util_entropy:
	cd bnpy/util/; \
	python setup.py build_ext --inplace

# Rule: compile libfwdbwd from Eigen
# Explanation of flags:
# -O3 : level 3 optimizations make this code blazing fast
# --shared -fPIC : build shared library, which is callable from Python
# -I$EIGENPATH : set the include path so Eigen library can be found
# -w : disable all warnings (makes for cleaner output)
# -DNDEBUG : disable all eigen assertions and other runtime checks
libfwdbwd: hasEigenpath
	cd bnpy/allocmodel/hmm/lib/; \
	g++ FwdBwdRowMajor.cpp -o libfwdbwd.so \
		-I$(EIGENPATH) \
		$(EIGENOPTFLAGS) \
		--shared -fPIC -w $(PYARCH);

libsparseresp: hasEigenpath
	echo "$(PYVERSION)"; \
	cd bnpy/util/lib/sparseResp/; \
	g++ SparsifyRespCPPX.cpp -o libsparseresp.so \
		-I$(EIGENPATH) \
		$(EIGENOPTFLAGS) \
		--shared -fPIC -w $(PYARCH);

libsparsetopics: hasEigenpath
	cd bnpy/util/lib/sparseResp/; \
	g++ TopicModelLocalStepCPPX.cpp -o libsparsetopics.so \
		-I$(BOOSTMATHPATH) -I$(EIGENPATH) \
		$(EIGENOPTFLAGS) \
		--shared -fPIC -w $(PYARCH);

libsparseManyDocs: hasEigenpath
	cd bnpy/util/lib/sparseResp/; \
	g++ TopicModelLocalStepManyDocsCPPX.cpp -o libsparseManyDocs.so \
		-I$(BOOSTMATHPATH) -I$(EIGENPATH) \
		$(EIGENOPTFLAGS) \
		--shared -fPIC -w $(PYARCH);

# Rule: verify that EIGENPATH exists, or instruct user to download it.
hasEigenpath:
ifndef EIGENPATH
		$(error EIGENPATH not set. \
			First, install Eigen (v3+) from eigen.tuxfamily.org. \
			Next, in terminal: export EIGENPATH=/path/to/eigen3/)
endif