test $OPT_DISABLE_SDCPP = 0 && AC_CONFIG_SUBDIRS(support/cpp2)
test $OPT_DISABLE_PACKIHX = 0 && AC_CONFIG_SUBDIRS(packihx)
test $OPT_DISABLE_UCSIM = 0 && AC_CONFIG_SUBDIRS(sim/ucsim)
-test $OPT_ENABLE_DOC = 1 && AC_CONFIG_FILES([doc/Makefile])
+AC_CONFIG_FILES([doc/Makefile])
test $OPT_DISABLE_AVR = 0 && AC_CONFIG_FILES([src/avr/Makefile])