+ $(INSTALL_PRELUDE) | cat - $< > tmp.texi
+ $(MAKEINFO) --plaintext --no-validate tmp.texi > $@
+ rm -f tmp.texi
+
+# INSTALL file with ISO 646 or ISO 8859 quotation marks.
+INSTALL.ISO: install.texi
+ $(INSTALL_PRELUDE) | cat - $< > tmpi.texi
+ $(MAKEINFO) --plaintext --no-validate tmpi.texi \
+ | sed -e "s/\`\([^']*\)'/'\1'/g" > $@
+ rm -f tmpi.texi
+
+# INSTALL file wit ISO 10646 (Unicode) quotation marks.
+INSTALL.UTF-8: install.texi
+ $(INSTALL_PRELUDE) | cat - $< > tmpu.texi
+ $(MAKEINFO) --plaintext --no-validate tmpu.texi \
+ | sed -e "s/\`\([^']*\)'/‘\1’/g" > $@
+ rm -f tmpu.texi