Cygwin x86_64 support for GCC 4.8.x

Cygwin x86_64 support for GCC 4.8.x

[Vasili Galka]

Hi,

Cygwin x86_64 support was implemented on trunk r197171. Given it is a
minor configuration files change I recommend merging it to GCC 4.8
branch.

Best regards,
Vasili

Re: Cygwin x86_64 support for GCC 4.8.x

[Kai Tietz]

2013/9/7 Vasili Galka <vvv444@gmail.com>:
> Hi,
>
> Cygwin x86_64 support was implemented on trunk r197171. Given it is a
> minor configuration files change I recommend merging it to GCC 4.8
> branch.
>
> Best regards,
> Vasili

No, this won't be back-merged.  It isn't a "minor configuration file change".
The gcc 4.9 series will be the first official gcc supporting cygwin
64-bit target.

Regards,
Kai

Re: Cygwin x86_64 support for GCC 4.8.x

[Vasili Galka]

Hi Kai,

I see. My apologies, I'm not familiar with the GCC merging policy.

In any case, where does GCC document the list of supported
target/host/build configurations?

I was trying to build GCC 4.8.1 with following configuration: HOST &
BUILD: Cygwin 64bit, TARGET=arm-none-eabi

I ended up with successful build/install that generated runtime errors
which I had to investigate (while same on Cygwin 32 was fine).
So it shall be either documented that such configuration is not
supported or (better) it shall generate a warning/error at configure stage.

Best,
Vasili

On Sat, Sep 7, 2013 at 9:37 PM, Kai Tietz <ktietz70@googlemail.com> wrote:
> 2013/9/7 Vasili Galka <vvv444@gmail.com>:
>> Hi,
>>
>> Cygwin x86_64 support was implemented on trunk r197171. Given it is a
>> minor configuration files change I recommend merging it to GCC 4.8
>> branch.
>>
>> Best regards,
>> Vasili
>
> No, this won't be back-merged.  It isn't a "minor configuration file change".
> The gcc 4.9 series will be the first official gcc supporting cygwin
> 64-bit target.
>
> Regards,
> Kai

Re: Cygwin x86_64 support for GCC 4.8.x

[Kai Tietz]

Hi Vasili,

2013/9/7 Vasili Galka <vvv444@gmail.com>:
> Hi Kai,
>
> I see. My apologies, I'm not familiar with the GCC merging policy.
>
> In any case, where does GCC document the list of supported
> target/host/build configurations?
>
> I was trying to build GCC 4.8.1 with following configuration: HOST &
> BUILD: Cygwin 64bit, TARGET=arm-none-eabi
>
> I ended up with successful build/install that generated runtime errors
> which I had to investigate (while same on Cygwin 32 was fine).
> So it shall be either documented that such configuration is not
> supported or (better) it shall generate a warning/error at configure stage.
>
> Best,
> Vasili

Why so?  A target is supported when it gets mentioned in
release-notes.   The gcc 4.8.x doesn't support that target.  There is
the 4.8.x version cygwin uses for building cygwin 64-bit.  The used
gcc version is locally patched.  You can get those patches (actual
back-merge of changes already applied to trunk plus some additions
AFAIK) by the cygwin-folk directly.

Regards,
Kai