+ifeq "$(BootingFromHc)" "NO"
+# We don't want to build the _stub.c files ourselves, unless we're
+# bootstrapping from .hc files.
+EXCLUDED_C_SRCS = $(patsubst %.lhs, %_stub.c, $(HS_SRCS)) \
+ $(patsubst %.hs, %_stub.c, $(HS_SRCS)) \
+ $(patsubst %.gc, %_stub_ffi.c, $(GC_SRCS)) \
+ $(patsubst %.gc, %_stub_ffi.h, $(GC_SRCS))
+endif
+
+# These are droppings from hsc2hs - ignore them if we see them.
+EXCLUDED_C_SRCS += $(patsubst %.hsc, %_hsc_make.c, $(HSC_SRCS))
+
+C_SRCS = $(filter-out $(EXCLUDED_C_SRCS),$(filter %.c,$(SRCS)))