include-pass-submakes: extra-rules-subdirs
-# We must go to EXTRA_RULES_SUBDIRS beofre going to any other
+# We must go to EXTRA_RULES_SUBDIRS before going to any other
# directory, since the executables compiled in EXTRA_RULES_SUBDIRS
# might be needed there.
include-pass-this-dir $(foreach subdir,$(SUBDIRS),include-pass-$(subdir)-subdir): extra-rules-subdirs