--- Waterfox-56.0.2/media/libcubeb/src/moz.build.cubebbuild	2018-01-05 16:39:00.921101411 -0200
+++ Waterfox-56.0.2/media/libcubeb/src/moz.build	2018-01-05 16:40:44.948718748 -0200
@@ -89,4 +89,4 @@ CFLAGS += CONFIG['MOZ_ALSA_CFLAGS']
 CFLAGS += CONFIG['MOZ_PULSEAUDIO_CFLAGS']
 
 # We allow warnings for third-party code that can be updated from upstream.
-AllowCompilerWarnings()
+ALLOW_COMPILER_WARNINGS = True