[PATCH 1/2] toplevel: do not make libstdc++ configure wait for libgomp

[Jeffrey Law]

On 8/12/2026 7:50 AM, Kyrylo Tkachov wrote:
>
>> On 12 Aug 2026, at 15:30, Jeffrey Law <jeffrey.law@oss.qualcomm.com> wrote:
>>
>>
>>
>> On 8/11/2026 9:24 AM, Sam James wrote:
>>> Kyrylo Tkachov <ktkachov@nvidia.com> writes:
>>>
>>>>> On 11 Aug 2026, at 15:11, Sam James <sam@gentoo.org> wrote:
>>>>>
>>>>> <ktkachov@nvidia.com> writes:
>>>>>
>>>>>> From: Kyrylo Tkachov <ktkachov@nvidia.com>
>>>>>>
>>>>>> libstdc++'s configure was made to depend on libgomp's configure in 2007, when
>>>>>> GLIBCXX_ENABLE_PARALLEL decided whether to enable parallel mode by looking for
>>>>>> a configured libgomp/omp.h on disk.  Since 2010 the test has instead grepped
>>>>> Could you include commit refs for these? It's nice for us who go digging
>>>>> fairly often (also makes it easier to verify this is right).
>>>> Yeah, sure. Here it is with the references in the commit message.
>>> Thank you!
>>>
>>> I can't approve it but both patches LGTM.
>> OK for the trunk.  Thanks!
> Thanks, does that include patch 2 (the one that gives the biggest bootstrap gain)? Or do we want a libstdc++ for that?
Sorry I wasn't clear.  Just patch #1. I'd prefer one of the libstdc++ 
guys chime in on patch #2 since it's clearly in their space.

jeff