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Re: RFA: Fix target/44750
On Nov 5, 2010, at 12:35 AM, Joern Rennecke wrote:
> Quoting Paul Koning <email@example.com>:
>> I ran into a problem with this.
> Oops, while we can rely on a fairly recent version of GNU make, the same
> is not true of the bootstrap compiler. So there is still a good reason
> to stick to the *.o-warn mechanism.
> The attached patch makes use of this so that we use just -Wno-error, and only
> when we're actually using -Werror in the first place.
> OK to apply?
> 2010-11-05 Joern Rennecke <firstname.lastname@example.org>
> PR target/44750
> * config/pdp11/t-pdp11 (dwarf2out.o, java/constants.o): Undo last
> change. Set $@-warn.o to -Wno-error.
> Index: config/pdp11/t-pdp11
> --- config/pdp11/t-pdp11 (revision 166331)
> +++ config/pdp11/t-pdp11 (working copy)
> @@ -39,8 +39,10 @@ MULTILIB_OPTIONS = msoft-float
> # DWARF_ARANGES_PAD_SIZE is 0, thus a loop in output_aranges that checks
> # (i < (unsigned) DWARF_ARANGES_PAD_SIZE) elicits a warning that the
> # comparison is always false.
> -dwarf2out.o: ALL_COMPILERFLAGS += -Wno-error=type-limits
> +# We could say "-Werror -Wno-error=type-limits", alas, not all supported
> +# gcc bootstrap compilers support the latter option.
> +dwarf2out.o-warn = -Wno-error
> # Likewise, java/constants.c:build_constants_constructor has a negative shift
> # count (in never-executed code) due to the small POINTER_SIZE.
> -java/constants.o: ALL_COMPILERFLAGS += -Wno-error
> +java/constants.o-warn = -Wno-error