creduce @2.10.0 : depends on clang-8.0 which doesn't work on Big Sur

[c-kloukinas]

Can it be built with a newer version of clang that's supported in BigSur?

[kencu (Ken)]

we were supposed to update the clang dep to 9.0 when we upgraded to creduce 2.10

<​https://github.com/csmith-project/creduce/blob/master/INSTALL.md>

and that is working on BigSur Intel <​http://packages.macports.org/clang-9.0/>.

For BigSur arm64, we should use llvm-11/clang-11. There is a creduce branch for that, and a fairly simple patch from that branch here <​https://github.com/csmith-project/creduce/commit/3e1f5a1ec1365fafae965c97603221c9ccbc2d61> that does the actual llvm-11 fix.

So looks all doable.

[mascguy (Christopher Nielsen)]

PR created:

​https://github.com/macports/macports-ports/pull/15256

[mascguy (Christopher Nielsen)]

It looks like separate patches are needed, for LLVM versions beyond 11.

LLVM 12:

​https://github.com/csmith-project/creduce/commit/05aa5659c055860e84ec9f53b19e1228b34510a1.patch

LLVM 13 requires the aforementioned patch for 12, along with:

​https://github.com/csmith-project/creduce/commit/4ae77d1e101135a6aea310b30c19e2af968b7bf6.patch

[Christopher Nielsen <mascguy@…>]

In 73e1c3434058a4cbd61502883be7144aedbb21cf/macports-ports (master):

creduce: add variants llvm90, llvm11

• Auto-select llvm11 for Big Sur and later
• Also migrate default from llvm 8 to 9

Fixes: #62637