tool/leaked-globals: ignore function typedef [ci skip]

template/Makefile.in

@@ -704,4 +704,4 @@ mjit_build_dir.$(SOEXT): $(MJIT_MIN_HEADER) $(srcdir)/ruby-runner.c ruby-runner.
 
 # yes-test-basic: leaked-globals
 leaked-globals: $(COMMONOBJS) prog $(tooldir)/leaked-globals PHONY
-	$(Q) $(XRUBY) $(tooldir)/leaked-globals NM=$(NM) SYMBOL_PREFIX=$(SYMBOL_PREFIX) PLATFORM=$(hdrdir)/ruby/$(PLATFORM_DIR).h $(srcdir)/configure.ac $(COMMONOBJS)
+	$(Q) $(XRUBY) $(tooldir)/leaked-globals NM="$(NM) -Pgp" SYMBOL_PREFIX=$(SYMBOL_PREFIX) PLATFORM=$(hdrdir)/ruby/$(PLATFORM_DIR).h $(srcdir)/configure.ac $(COMMONOBJS)

tool/leaked-globals

@@ -29,8 +29,9 @@ if platform and !platform.empty?
   else
     REPLACE.concat(
       h .gsub(%r[/\*.*?\*/]m, " ") # delete block comments
-        .gsub(%r[//.*], ' ')       # delete oneline comments
+        .gsub(%r[//.*], " ")       # delete oneline comments
         .gsub(/^\s*#.*(?:\\\n.*)*/, "") # delete preprocessor directives
+        .gsub(/(?:\A|;)\K\s*typedef\s.*?;/m, "")
         .scan(/\b((?!rb_|DEPRECATED|_)\w+)\s*\(.*\);/)
         .flatten)
   end
@@ -44,7 +45,7 @@ ARGV.reject! do |n|
 end
 print "Checking leaked global symbols..."
 STDOUT.flush
-IO.foreach("|#{NM} -Pgp #{ARGV.join(' ')}") do |line|
+IO.foreach("|#{NM} #{ARGV.join(' ')}") do |line|
   n, t, = line.split
   next unless /[A-TV-Z]/ =~ t
   next unless n.sub!(/^#{SYMBOL_PREFIX}/o, "")