--- Makefile.in
+++ Makefile.in
@@ -371,7 +371,7 @@
 with_bashcompdir = @with_bashcompdir@
 AM_DISTCHECK_CONFIGURE_FLAGS = --with-bashcompdir='$$(datarootdir)/bash-completion/completions'
 ACLOCAL_AMFLAGS = -I m4
-SUBDIRS = src doc tools tests
+SUBDIRS = src
 doc_DATA = README.md TODO.md COPYING.md AUTHORS.md NEWS.md PORTS.md \
 	BUGS.md COPYRIGHT.md CREDITS.md INSTALL.W32.md INSTALL.WCE.md \
 	INSTALL.FIPS.md