topsrc = @top_srcdir@
TEXDIR = $(topsrc)/doc/tex

PKG = extra
DOCDIR = $(topsrc)/addons/$(PKG)/doc
SRCS = $(PKG).tex pkgdoc.tex gretl.sty

$(PKG).pdf: $(SRCS)
	@pdflatex $(PKG) && pdflatex $(PKG)
	@if grep 'Rerun to get' $(PKG).log ; then pdflatex $(PKG) ; fi

$(SRCS): | symlinks

.PHONY : symlinks clean

symlinks:
	@if [ ! -f gretl.sty ] || [ ../../../doc/gretl.sty -nt gretl.sty ] ; then ln -sf ../../../doc/gretl.sty . ; fi
	@for f in $(PKG).tex pkgdoc.tex ; do \
	if [ ! -f $$f ] || [ $(DOCDIR)/$$f -nt $$f ] ; then ln -sf $(DOCDIR)/$$f . ; fi ; done

clean:
	@rm -f *.log *.aux *.bbl *.blg *.toc $(PKG).pdf