-EXTRA_DIST = $(PFILE) $(PFILE1) $(man_MANS) \
- REFERENCES configure.bat build.com bison.cld bison.rnh vmshlp.mar
+
+EXTRA_DIST = bison.1 bison.s1 bison.hairy REFERENCES configure.bat \
+ build.com bison.cld bison.rnh vmshlp.mar OChangeLog
+
+bison.simple: bison.s1 Makefile
+ -rm -f $@
+ sed -e "/^#line/ s|bison|$(datadir)/bison|" -e "s/@bison_version@/$(VERSION)/" < $(srcdir)/bison.s1 > $@-tmp
+ mv $@-tmp $@
+
+DISTCLEANFILES = bison.simple