Makefile

PYTHON=python
PYEXT=$(shell $(PYTHON)-config --extension-suffix 2>/dev/null || echo ".so")
SCRAM := $(shell command -v scram)
ifdef SCRAM
	PYINC=-I$(shell $(SCRAM) tool tag $(PYTHON) INCLUDE)
else
	PYINC=$(shell $(PYTHON)-config --includes)
endif
OSXFLAG=$(shell uname|grep -q Darwin && echo "-undefined dynamic_lookup")
CFLAGS=--std=c++17 -O3 -Wall -fPIC -Irapidjson/include -Ipybind11/include -Icpp-peglib $(PYINC) -Iinclude
LDFLAGS=-pthread
PREFIX ?= /usr
STRVER=$(shell git describe --tags)
MAJOR=$(shell git describe --tags|sed -n "s/v\([0-9]\+\)\..*/\1/p")
MINOR=$(shell git describe --tags|sed -n "s/v[0-9]\+\.\([0-9]\+\)\..*/\1/p")

.PHONY: build all clean install

all: demo examples

include/correctionlib_version.h: include/version.h.in
	sed "s/@CORRECTIONLIB_VERSION@/$(STRVER)/;s/@correctionlib_VERSION_MAJOR@/$(MAJOR)/;s/@correctionlib_VERSION_MINOR@/$(MINOR)/" $< > $@

build/%.o: src/%.cc include/correctionlib_version.h
	mkdir -p build
	$(CXX) $(CFLAGS) -c $< -o $@

demo: build/demo.o build/correction.o build/formula_ast.o
	$(CXX) $(LDFLAGS) $^ -o $@

examples: data/conversion.py
	python $^

correctionlib: build/python.o build/correction.o build/formula_ast.o
	mkdir -p correctionlib
	$(CXX) $(LDFLAGS) -fPIC -shared $(OSXFLAG) $^ -o correctionlib/_core$(PYEXT)
	touch correctionlib/__init__.py

install: correctionlib
	mkdir -p $(PREFIX)/include
	install -m 644 include/correction.h $(PREFIX)/include
	mkdir -p $(PREFIX)/lib
	install -m 755 correctionlib/_core$(PYEXT) $(PREFIX)/lib

clean:
	rm -rf build
	rm -f demo
	rm -f data/examples.json*
	rm -rf correctionlib
	rm -f include/correctionlib_version.h