[R-pkg-devel] Can -mmacosx-version-min be raised to 10.15 ?

[Simon Urbanek]

Dirk,

can you clarify where the flags come from? The current CRAN builds (big-sur-x86_64 and big-sur-arm64) use

export SDKROOT=/Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk
export MACOSX_DEPLOYMENT_TARGET=11.0

so the lowest target is 11.0 and it is no longer forced it in the flags (so that users can more easily choose their desired targets).

Cheers,
Simon



> On 17/11/2023, at 2:57 AM, Dirk Eddelbuettel <edd using debian.org> wrote:
> 
> 
> Hi Simon,
> 
> We use C++20 'inside' our library and C++17 in the API. Part of our C++17 use
> is now expanding to std::filesystem whose availability is dependent on the
> implementation. 
> 
> The compiler tells us (in a compilation using -mmacosx-version-min=10.14)
> that the features we want are only available with 10.15.
> 
> Would we be allowed to use this value of '10.15' on CRAN?
> 
> Thanks as always,  Dirk
> 
> 
> [1] https://github.com/TileDB-Inc/TileDB/actions/runs/6882271269/job/18720444943?pr=4518#step:7:185
> 
> -- 
> dirk.eddelbuettel.com | @eddelbuettel | edd using debian.org
> 
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