diff --git a/Makefile.am b/Makefile.am
index 27a8766e..e2968260 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -28,9 +28,19 @@ cleanupnote:
 tags:
 	gtags
 
+# this warns about function that have a cyclomatic complexity of > 10,
+# which is a sign that it needs some refactoring. requires the pmccabe
+# tool. If all is fine, it outputs nothing
 cc10:
 	@pmccabe `find -name '*.c' -o -name '*.cc'` | sort -nr | awk '($$1 > 10)'
 
+# this warns about functions that are over 30 non-comment lines long, which is a
+# sign that they need some refactoring. requires the pmccabe tool. if
+# all is fine, it outputs nothing
+line30:
+	@pmccabe -c `find -name '*.c' -o -name '*.cc'` | sort -nr | awk '($$5 > 30)'
+
+
 
 EXTRA_DIST=		\
 	TODO		\