DISTCLEANFILES=ffitarget.h
EXTRA_DIST=ffi.h.in ffi_common.h
-hackdir=$(includedir)
+# Where generated headers like ffitarget.h get installed.
+gcc_version := $(shell cat $(top_srcdir)/../gcc/BASE-VER)
+toollibffidir := $(libdir)/gcc/$(target_alias)/$(gcc_version)/include
-hack_DATA=ffitarget.h ffi.h
+toollibffi_HEADERS = ffi.h ffitarget.h