diff --git a/hio/Makefile.am b/hio/Makefile.am
index 70c9b69..27ba902 100644
--- a/hio/Makefile.am
+++ b/hio/Makefile.am
@@ -7,7 +7,7 @@ SUBDIRS = lib bin t
 DIST_SUBDIRS = $(SUBDIRS) 
 
 distclean-local:
-	$(RM) -r $(top_srcdir)/autom4te.cache
+	rm -rf $(top_srcdir)/autom4te.cache
 
 ######################################################################
 
diff --git a/hio/Makefile.in b/hio/Makefile.in
index ef5bab5..6015ee4 100644
--- a/hio/Makefile.in
+++ b/hio/Makefile.in
@@ -831,7 +831,7 @@ uninstall-am:
 
 
 distclean-local:
-	$(RM) -r $(top_srcdir)/autom4te.cache
+	rm -rf $(top_srcdir)/autom4te.cache
 
 ######################################################################
 
diff --git a/hio/lib/Makefile.in b/hio/lib/Makefile.in
index aefe749..97ca283 100644
--- a/hio/lib/Makefile.in
+++ b/hio/lib/Makefile.in
@@ -446,6 +446,8 @@ LIBADD_LIB_COMMON = $(LIBM)
 #pkgincludedir = $(includedir)
 #pkglibdir = $(libdir)
 #pkgbindir = $(bindir)
+
+# Never list hio-cfg.h in include_HEADERS.
 include_HEADERS = hio-chr.h hio-cmn.h hio-dhcp.h hio-dns.h hio-ecs.h \
 	hio-fmt.h hio-htb.h hio-htrd.h hio-htre.h hio-http.h \
 	hio-json.h hio-md5.h hio-nwif.h hio-opt.h hio-pac1.h \