# Makefile to convert a batch of odg diagrams to pdf with same name
# Christian (c) 2014
# GPL v3

SOURCES = $(wildcard *.odg)
TARGETS = $(SOURCES:.odg=.pdf)

LIBREOFFICE_PID = $(shell pidof soffice.bin)

# we can convert odg to pdf with:
# * libreoffice --convert-to pdf
# * cups-printer
# * unoconv

%.pdf:%.odg

ifneq ("", "$(LIBREOFFICE_PID)")
	$(error "Please, close all LibreOffice instances ($(LIBREOFFICE_PID)) to continue")
endif
	libreoffice --headless --convert-to pdf "$^"

all: $(TARGETS)

clean:
	rm -f $(TARGETS)
pdf:%.odg