-HS_SRCS=$(filter %.lhs %.hs %.hc,$(SRCS))
-#
-# Do not include BOOT_SRCS in the HS_SRCS defn above,
-# since this will make HS_SRCS always be non-empty,
-# which breaks rules like `depend'. Price is that
-# you have to define BOOT_SRCS before including
-# boilerplate.mk
-#
-ifneq "$(BOOT_SRCS)" ""
-HS_SRCS+=$(BOOT_SRCS)
-endif