--- Makefile.am.orig	2020-11-26 23:20:59 UTC
+++ Makefile.am
@@ -20,7 +20,6 @@ if CAIRO_HAS_PNG_FUNCTIONS
 SUBDIRS = src doc util
 # libpng is required for our test programs
 if CAIRO_HAS_PNG_FUNCTIONS
-SUBDIRS += boilerplate test perf
 endif
 
 doc: