+# Likewise for runtime-po/Makevars, except also change a few other parameters.
+sed '
+ s/^\(DOMAIN\) *=.*/\1 = bison-runtime/
+ s/^\(subdir\) *=.*/\1 = runtime-po/
+ s/^\(XGETTEXT_OPTIONS\) *=.*/\1 = --keyword=YYI18N/
+' <po/Makevars >runtime-po/Makevars
+
+# Copy identical files from po to runtime-po.
+(cd po && cp -p *-quot *.header *.sed *.sin ../runtime-po)