CXX := g++
CFLAGS := -std=c++11 -Wall -Werror -Wextra -O3

.PHONY: all
all: bin/gcd

bin:
	@mkdir -v bin

bin/gcd: src/gcd.cpp | check-cxx-works bin
	@echo Compiling $<
	@${CXX} ${CFLAGS} $^ -o $@

.PHONY: install
install: bin/gcd
	@cp -v $^ /usr/bin

.PHONY: uninstall
uninstall: /usr/bin/gcd
	@rm -v $^

.PHONY: clean
clean:
	@rm -rfv bin

.PHONY: mrproper
mrproper: clean

.PHONY: check-cxx-works
check-cxx-works:
	@${CXX} --version >/dev/null 2>&1 || (echo 'Please install a C++ compiler.' && exit 1)