$$r/$(HOST_SUBDIR)/prev-gcc/xgcc$(exeext) \
-B$$r/$(HOST_SUBDIR)/prev-gcc/ \
-B$(build_tooldir)/bin/"; export CC_FOR_BUILD; \
$$r/$(HOST_SUBDIR)/prev-gcc/xgcc$(exeext) \
-B$$r/$(HOST_SUBDIR)/prev-gcc/ \
-B$(build_tooldir)/bin/"; export CC_FOR_BUILD; \