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Subject: Re: Request update GCC
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From: JonY <10walls AT gmail DOT com>
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Date: Tue, 27 Jun 2017 01:08:56 +0000
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From: JonY <10walls AT gmail DOT com>
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Subject: Re: Request update GCC
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On 06/26/2017 10:16 AM, Marco Atzeri wrote:
>=20
> Jon,
>=20
> are you building the compilers on cygwin or cross compiling ?
>=20
> I was trying to test the patch for
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D47030
> as it is blocking PETSC porting,
> but I was unable to build 6.3.0-1 from your
> source package.
>=20
>=20
> In file included from
> /cygdrive/e/cyg_pub/devel/gcc/gcc-6.3.0-1.src/gcc-6.3.0-1.
> x86_64/src/gcc-6.3.0/gcc/rtl.h:31:0,
>                  from
> /cygdrive/e/cyg_pub/devel/gcc/gcc-6.3.0-1.src/gcc-6.3.0-1.
> x86_64/src/gcc-6.3.0/gcc/genopinit.c:25:
> /cygdrive/e/cyg_pub/devel/gcc/gcc-6.3.0-1.src/gcc-6.3.0-1.x86_64/src/gcc-=
6.3.0/g
>=20
> cc/real.h:36:35: warning: division by zero [-Wdiv-by-zero]
>  #define SIGSZ   (SIGNIFICAND_BITS / HOST_BITS_PER_LONG)
>=20
> /cygdrive/e/cyg_pub/devel/gcc/gcc-6.3.0-1.src/gcc-6.3.0-1.x86_64/src/gcc-=
6.3.0/g
>=20
> cc/real.h:49:21: note: in expansion of macro =E2=80=98SIGSZ=E2=80=99
>    unsigned long sig[SIGSZ];

On Cygwin itself, shouldn't that be 32bit and 64bit respectively for Cygwin?


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