On Mon, May 26, 2014 at 10:14 AM, FX <fxcoud...@gmail.com> wrote:
>> > .././../gcc-4.10-20140518/gcc/wide-int.cc:1274:23: error: invalid use of a
>> > cast in a inline asm context requiring an l-value: remove the cast or
>> > build with -fheinous-gnu-extensions
>> >           umul_ppmm (val[1], val[0], op1.ulow (), op2.ulow ());
>> >           ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>
>> This is PR 61146.  You can get around it by adding -fheinous-gnu-extensions
>> to BOOT_CFLAGS.
>
> This causes GCC bootstrap to fail on Darwin systems (whose system compiler is 
> clang-based). Since PR 61146 was resolved as INVALID (but I’m not sure it’s 
> the right call, see below), I’ve filed a separate report for the bootstrap 
> issue (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61315).
>
> Regarding PR 61146, I agree with Marc Glisse (comment #3) that the casts in 
> question look weird and should probably be removed, as was done in GMP. This 
> code should be cleaned up, and it will fix bootstrap on clang-based target 
> coincidentally, without adding another kludge.

Please post a patch.

Thanks,
Richard.

> FX

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