$(MANS): doxyfile-knet.stamp doxyfile-nozzle.stamp
-doxyfile-knet.stamp: $(builddir)/doxyxml Doxyfile-knet $(top_srcdir)/libknet/libknet.h
+doxyfile-knet.stamp: $(noinst_PROGRAMS) Doxyfile-knet $(top_srcdir)/libknet/libknet.h
$(DOXYGEN) Doxyfile-knet
$(builddir)/doxyxml -m -P -o $(builddir) -s 3 -p @PACKAGE_NAME@ -H "Kronosnet Programmer's Manual" \
$$($(UTC_DATE_AT)$(SOURCE_EPOCH) +"-D %F -Y %Y") -d $(builddir)/xml-knet/ libknet_8h.xml
touch doxyfile-knet.stamp
-doxyfile-nozzle.stamp: $(builddir)/doxyxml Doxyfile-nozzle $(top_srcdir)/libnozzle/libnozzle.h
+doxyfile-nozzle.stamp: $(noinst_PROGRAMS) Doxyfile-nozzle $(top_srcdir)/libnozzle/libnozzle.h
if BUILD_LIBNOZZLE
$(DOXYGEN) Doxyfile-nozzle
$(builddir)/doxyxml -m -P -o $(builddir) -s 3 -p @PACKAGE_NAME@ -H "Kronosnet Programmer's Manual" \