# honour make -s flag
override V := $(if $(findstring s,$(MAKEFLAGS)),,$V)
+targets := presentacion.pdf notas.pdf
+
.PHONY: all
-all: presentacion.pdf notas.pdf
+all: $(targets)
presentacion.pdf: $O/presentacion.tex $(imgs)
$(if $V,@echo "$(PDFLATEX) $< > $@")
.PHONY: clean-all
clean-all: clean
- $(RM) presentacion.pdf
+ $(RM) $(targets)
__dummy := $(shell mkdir -p $O/img)