diff --git a/configure.in b/configure.in
index 55cbe78528..22f391c902 100644
--- a/configure.in
+++ b/configure.in
@@ -9,8 +9,16 @@ srcname="gnu development package"
 
 # per-host:
 
+# XXX - FIXME there needs to be a case for hmake-dgux
+
+case "${host_os}" in
+sysv* | irix*) host_makefile_frag=config/hmake-sysv ;;
+esac
+
 # per-target:
 
+# XXX - FIXME there needs to be a case for tmake-a29k
+
 #
 # Local Variables:
 # fill-column: 131