External program is used in tests.
@ -275,6 +275,7 @@ self: super: {
xmlgen = dontCheck super.xmlgen;
hapistrano = dontCheck super.hapistrano;
HerbiePlugin = dontCheck super.HerbiePlugin;
wai-cors = dontCheck super.wai-cors;
# These packages try to access the network.
amqp = dontCheck super.amqp;