--- a/configure.ac	Fri Apr  1 03:54:45 2022
+++ b/configure.ac	Mon Aug  1 17:27:29 2022
@@ -1197,7 +1197,11 @@
 AC_SUBST(LIBINTL)
 AC_SUBST(CATALOGS)
 
+# This is only used in the po/ directory...
+install_sh="$INSTALL"
+AC_SUBST(install_sh)
 
+
 ###############################################################################
 #
 #       The --with-x-app-defaults option