Fix ghc package in bindists; it wasn't adding the depenedency on readline

Makefile

@@ -330,6 +330,7 @@ binary-dist::
 	echo "GhcHasReadline = $(GhcHasReadline)"                    >> $(VARFILE)
 	echo "BootingFromHc = $(BootingFromHc)"                      >> $(VARFILE)
 	echo "XMLDocWays = $(XMLDocWays)"                            >> $(VARFILE)
+	echo "TARGETPLATFORM = $(TARGETPLATFORM)"                    >> $(VARFILE)
 	cat distrib/Makefile-bin-vars.in                             >> $(VARFILE)
 	@echo "Generating a shippable configure script.."
 	$(MV) $(BIN_DIST_DIR)/configure-bin.ac $(BIN_DIST_DIR)/configure.ac

compiler/Makefile

@@ -493,7 +493,7 @@ SRC_HC_OPTS += -package readline -DUSE_READLINE
 PKG_DEPENDS += readline
 endif
 else
--include $(FPTOOLS_TOP)/libraries/readline/config.mk
+-include $(FPTOOLS_TOP_ABS)/libraries/readline/config.mk
 # readline's config.mk sets PACKAGE, which we don't want here
 PACKAGE=
 ifeq "$(READLINE_BUILD_PACKAGE)" "yes"

libraries/Makefile

@@ -368,6 +368,10 @@ ifeq "$(HADDOCK_DOCS)" "YES"
 	cp    doc-index*.html               $(BIN_DIST_LIBDIR)
 endif
 	cp -pR stamp                         $(BIN_DIST_LIBDIR)
+	# This gets used in the compiler directory to see if GHC should
+	# depend on the readline package or not
+	$(MKDIRHIER) $(BIN_DIST_LIBDIR)/readline
+	cp    readline/config.mk            $(BIN_DIST_LIBDIR)/readline
 
 $(foreach SUBDIR,$(SUBDIRS),binary-dist.library.$(SUBDIR)): \
 binary-dist.library.%: