Bug 261931 - devel/creduce: Add a crutch to build against libc++ 14
Summary: devel/creduce: Add a crutch to build against libc++ 14
Status: Closed DUPLICATE of bug 261932
Alias: None
Product: Ports & Packages
Classification: Unclassified
Component: Individual Port(s) (show other bugs)
Version: Latest
Hardware: Any Any
: --- Affects Some People
Assignee: freebsd-ports-bugs (Nobody)
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2022-02-13 14:12 UTC by Dimitry Andric
Modified: 2022-02-13 14:15 UTC (History)
0 users

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Attachments
Add crutch for using libc++ 14 with clang++ 8 (1.34 KB, patch)
2022-02-13 14:12 UTC, Dimitry Andric 		no flags Details | Diff
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Description Dimitry Andric freebsd_committer freebsd_triage 2022-02-13 14:12:24 UTC 
I am working on the import of llvm 14 in https://github.com/DimitryAndric/freebsd-src/tree/llvm-14-update; see also bug 261742 for the exp-run request.

One of the problematic ports is devel/creduce, since it still depends on devel/llvm80, and this is not compatible with libc++ 14 anymore, since it now requires support for __builtin_is_constant_evaluated() (see https://github.com/llvm/llvm-project/commit/1123100a16a321d70508e2508ebc5d57ce7163dc ).

As a crutch, I've added a small header which defines a constexpr __builtin_is_constant_evaluated() function, and include that at the top of every compiled file, using -include, whenever the base system clang version is 14 or higher.
Comment 1 Dimitry Andric freebsd_committer freebsd_triage 2022-02-13 14:12:50 UTC 
Created attachment 231794 [details]
Add crutch for using libc++ 14 with clang++ 8
Comment 2 Dimitry Andric freebsd_committer freebsd_triage 2022-02-13 14:15:18 UTC 
Close in favor of 261932, mistyped the title.

*** This bug has been marked as a duplicate of bug 261932 ***