-# XXX Eugh, can we do this better? The problem is making extra-gcc-opts
-# infdable on both Linux and Windows. I guess this will go away when we
-# drop the mangler?
-ifeq "$(HOSTPLATFORM)" "i386-unknown-mingw32"
-SET_DATA_SUBDIR = --datasubdir=.
-INPLACE_DATA_DIR = '$$prefix'
-else
-SET_DATA_SUBDIR =
-INPLACE_DATA_DIR = '$$prefix/data'
-endif
+# XXX This should be defined somewhere more central
+INPLACE_DATA_DIR = $(FPTOOLS_TOP_ABS)/inplace-datadir