--- a/components/desktop/thunderbird/Makefile	Sat Feb 06 06:41:10 2016 -0800
+++ b/components/desktop/thunderbird/Makefile	Mon Feb 08 11:04:26 2016 -0800
@@ -62,6 +62,15 @@
 
 include $(WS_MAKE_RULES)/prep.mk
 include $(WS_MAKE_RULES)/configure.mk
+
+# Depends on libsmbclient but samba is on the do-not-publish list, so this
+# must be too.
+ifeq ($(BUILD_TYPE), evaluation)
+BUILD_32=
+INSTALL_32=
+PUBLISH_STAMP=
+endif
+
 include $(WS_MAKE_RULES)/ips.mk
 
 # /usr/sbin needed for dtrace.