build    = $(CURDIR)/build
src	     = $(CURDIR)/main.tex
target	 = $(build)/main.pdf
targetru = $(build)/voronind_ru.pdf
targeten = $(build)/voronind_en.pdf

.PHONY: all
all: clean ru en view

.PHONY: clean
clean: 
	@rm -rf $(build)

.PHONY: en
en:
	@mkdir -p $(build);\
	export RESUME_LANG=en;\
	lualatex --output-dir=$(build) $(src);\
	mv $(target) $(targeten)

.PHONY: ru
ru:
	@mkdir -p $(build);\
	export RESUME_LANG=ru;\
	lualatex --output-dir=$(build) $(src);\
	mv $(target) $(targetru)

.PHONY: view
view:
	@gio open $(targeten) $(targetru)