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Re: [PATCH 5/9] build: reject C++ compilers that don't support std::vect

From: Hans Åberg
Subject: Re: [PATCH 5/9] build: reject C++ compilers that don't support std::vector::data
Date: Thu, 19 Aug 2021 10:23:53 +0200

> On 19 Aug 2021, at 08:10, Akim Demaille <> wrote:
>> Le 17 août 2021 à 15:46, Hans Åberg <> a écrit :
>>> On 17 Aug 2021, at 08:49, Akim Demaille <> wrote:
>>> You need to read my answer, and the page it pointed you to.
>> I checked it out on the C++ Std-Discussion list, and there is normative 
>> standard specifying std::vector::data before C++11. The absence in GCC 4.2 
>> may have to do with the MacOS version, as an earlier GCC version has it.
> Yes, as shown in the logs it used GCC 4.0's headers.
> That being said, actually requires C++11, so I have reverted these 
> changes, since none of the other C++ skeletons need vector::data, and this 
> check was not enough for

One situation where it might have of importance would have been LilyPond, which 
did not compile with clang due to it differing from gcc on some template 
interpretation, and further, they cross compiled the MacOS binaries using a 
ported SDK which only had gcc 4.2. However, LilyPond now compiles with clang, 
and the SDK license has changed so that it is no longer legal to cross compile 
on other platforms.

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