.PHONY: default build test clean default: build test clean PYTHON = python PYTHON_PERFIX = ${shell ${PYTHON} -c 'import sys; print(sys.exec_prefix)'} PYTHON_VERSION = ${shell ${PYTHON} -c 'import sys; print(sys.version[:3])'} PYTHON_CONFIG = ${PYTHON_PERFIX}/bin/python$(PYTHON_VERSION)-config MPICC = mpicc CFLAGS = ${shell ${PYTHON_CONFIG} --cflags} LDFLAGS = ${shell ${PYTHON_CONFIG} --ldflags} LDLAST = -Xlinker -export-dynamic build: helloworld.exe helloworld.exe: helloworld.c ${MPICC} ${CFLAGS} ${LDFLAGS} ${LDLAST} -o $@ $< MPIEXEC = mpiexec NP = -n 5 test: build ${MPIEXEC} ${NP} ./helloworld.exe clean: ${RM} helloworld.exe