Hi Tobias,
This patch fixes the issue that I was seeing, thanks.
I will also now try your updated patch from
https://gcc.gnu.org/pipermail/gcc-patches/2020-August/552330.html
Kind Regards
Vasee
On 20/08/2020, 17:29, "Tobias Burnus" <tob...@codesourcery.com> wrote:
Hi,
how about my (unreviewed) patch for PR 96612 at
https://gcc.gnu.org/pipermail/gcc-patches/2020-August/551900.html ?
That one also tries to solve the CXX_FOR_BUILD issue with an older GCC.
Would that solve your issue as well?
Tobias
On 8/20/20 4:19 PM, Ilya Leoshkevich via Gcc-patches wrote:
> On Thu, 2020-08-20 at 13:59 +0100, Vasee Vinayagamoorthy wrote:
>> Hello,
>>
>> After commit [1] ("Redefine NULL to nullptr"), building gcc
>> fails when $CXX_FOR_BUILD is not using C++11 mode by default.
>> This happens with gcc-4.8 which is still supported.
>>
>> This patch fixes this by adding -std=c++11 or its equivalent
>> to $CXX_FOR_BUILD using AX_CXX_COMPILE_STDCXX(11).
>>
>> Tested by successful cross native build for aarch64-none-linux-gnu
>> target.
>>
>> OK for trunk?
>>
>>
>> ChangeLog:
>>
>> 2020-08-20 Ilya Leoshkevich <i...@linux.ibm.com>
>> Vasee Vinayagamoorthy <
>> vaseeharan.vinayagamoor...@arm.com>
>>
>> PR target/95700
>> * configure: Regenerate.
>> * configure.ac: Require C++11 for building code generation
>> tools.
>>
>> Regards
>> Vasee Vinayagamoorthy
>>
>>
>> PS: I do not have commit rights, therefore could I request
>> someone to commit it on my behalf if this patch is approved.
>> Thanks in advance.
>>
>> [1]
>>
https://gcc.gnu.org/git/gitweb.cgi?p=gcc.git;h=d59a576b8b5e12c3a56f0262912090e2921f5daa
> Hi!
>
> First of all, sorry about losing track of this issue.
>
> Regarding your addition to the patch, I fear that
>
> CXX="$CXX -std=c++11"
>
> might break some rarely used compilers. But doing this portably is
> exactly what AX_CXX_COMPILE_STDCXX(11) is for. Do you know why isn't it
> working for you?
>
> Best regards,
> Ilya
>
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