+
+nothing=
+space=$(nothing) $(nothing)
+# Given
+# foo bar
+# make
+# :\"-Ifoo\":\"-Ibar\"
+GMP_INCLUDE_DIRS_STRINGS = $(subst $(space),,$(foreach d,$(GMP_INCLUDE_DIRS),:\"-I$(d)\"))
+
+$(INPLACE_HS): Makefile $(FPTOOLS_TOP)/mk/config.mk
+ echo "import System.Cmd; import System.Environment; import System.Exit" > $@
+ echo "main = do args <- getArgs; rawSystem \"$(FPTOOLS_TOP_ABS)/$(GHC_HSC2HS_DIR_REL)/$(HS_PROG)\" (\"--template=$(FPTOOLS_TOP_ABS)/$(GHC_HSC2HS_DIR_REL)/template-hsc.h\":\"--cc=$(CC)\":\"--ld=$(CC)\"$(patsubst %,:\"%\",$(extra_flags)):\"--cflag=-D__GLASGOW_HASKELL__=$(ProjectVersionInt)\":\"-I$(FPTOOLS_TOP_ABS)/$(GHC_INCLUDE_DIR_REL)\":\"-I$(FPTOOLS_TOP_ABS)/gmp/gmpbuild\"$(GMP_INCLUDE_DIRS_STRINGS):args) >>= exitWith" >> $@
+
+$(INPLACE_PROG): $(INPLACE_HS)
+ $(HC) --make $< -o $@
+
+all :: $(INPLACE_PROG)
+
+CLEAN_FILES += $(INPLACE_HS) $(INPLACE_PROG)