+# Ensure that the list of symbols checked for by the
+# sc_prohibit_intprops_without_use rule match those in the actual file.
+# Extract the symbols from the .h file and compare with the list of
+# symbols extracted from the rule in maint.mk.
+sc_check_sym_list:
+ i=lib/intprops.h; \
+ diff -u <(perl -lne '/^# *define ([A-Z]\w+)\(/ and print $$1' $$i|fmt) \
+ <(sed -n /^_intprops_name/,/^_intprops_syms_re/p top/maint.mk \
+ |sed '/^_/d;s/^ //;s/ *\\$$//')
+