PACKAGES_ := bytestring harpy hs-java plugins
PACKAGES := $(addprefix -package ,$(PACKAGES_))
-GHC_OPT := -I. -Wall -O0 -fno-warn-unused-do-bind -rtsopts
+GHC_OPT := -I. -Wall -O0 -fno-warn-unused-do-bind -rtsopts -cpp -pgmP cpphs -optP --cpp
GHC_LD := -optl-Xlinker -optl-x