Only select the "tools" part of bind for building.

--- Makefile.in.orig	2020-06-10 21:01:43 UTC
+++ Makefile.in
@@ -14,7 +14,7 @@ top_builddir =  @top_builddir@
 
 VERSION=@BIND9_VERSION@
 
-SUBDIRS =	make lib fuzz bin doc
+SUBDIRS =	lib bin
 TARGETS =
 PREREQS =	bind.keys.h
 
@@ -50,7 +50,6 @@ installdirs:
 	$(SHELL) ${top_srcdir}/mkinstalldirs ${DESTDIR}${mandir}/man1
 
 install:: installdirs
-	${INSTALL_DATA} ${top_srcdir}/bind.keys ${DESTDIR}${sysconfdir}
 
 uninstall::
 	rm -f ${DESTDIR}${sysconfdir}/bind.keys
--- bin/Makefile.in.orig	2020-06-10 21:01:43 UTC
+++ bin/Makefile.in
@@ -11,8 +11,7 @@ srcdir =	@srcdir@
 VPATH =		@srcdir@
 top_srcdir =	@top_srcdir@
 
-SUBDIRS =	named rndc dig delv dnssec tools nsupdate check confgen \
-		@NZD_TOOLS@ @PYTHON_TOOLS@ @PKCS11_TOOLS@ plugins tests
+SUBDIRS =	nsupdate
 TARGETS =
 
 @BIND9_MAKE_RULES@