doc = $(top_srcdir)/doc/bison.texinfo
extexi = $(top_srcdir)/examples/extexi
-extract = $(AWK) -f $(extexi) -v VERSION="$(VERSION)" $(doc) --
+extract = VERSION="$(VERSION)" $(PERL) -f $(extexi) $(doc) --
extracted =
CLEANFILES += $(extracted) examples/extracted.stamp
examples/extracted.stamp: $(doc) $(extexi)