[30.x] More Backports #36222

1. 
   fanquake commented at 4:30 PM on September 10, 2026: member

   Backports:

   • #36218
2. build: avoid pipe2 on Darwin (for now)

   macOS 27 will support pipe2 at runtime, and Xcode 27 (and Command Line
   Tools) support it at compile time. This means a macOS < 27 system will
   detect support for pipe2, but then binaries will crash at runtime, as
   pipe2 is not available.
   
   Just avoid pipe2 on macOS for now, and continue using pipe. Note that
   the compilation also produces availability warnings, and this will need
   to be backported.
   
   Github-Pull: #36218
   Rebased-From: 9c7748315d3124d1abe6a4606743cd9274beee66

   78c86f07a7
3. fanquake added this to the milestone 30.4 on Sep 10, 2026
4. DrahtBot added the label Backport on Sep 10, 2026
5. 
   DrahtBot commented at 4:30 PM on September 10, 2026: contributor

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   Code Coverage & Benchmarks

   For details see: https://corecheck.dev/bitcoin/bitcoin/pulls/36222.

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6. hebasto approved
7. 
   hebasto commented at 4:50 PM on September 10, 2026: member

   ACK 98f1623a6c223b2e0508e95d75a31b07001194a4.

8. doc: update release notes for v30.x edc3e40981
9. in doc/release-notes.md:58 in 98f1623a6c

     52 | @@ -53,6 +53,10 @@ Notable changes
     53 |  - #35691 chainparams: delete my DNS seed
     54 |  - #35766 p2p: Assume v2transport for addresses from seeds
     55 |  
     56 | +### Build
     57 | +
     58 | +- #36218 build: avoid pipe2 on Darwin (for now) - #36218
   

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   hebasto commented at 4:54 PM on September 10, 2026:

   Duplicated "#36218"?

10. fanquake force-pushed on Sep 10, 2026
11. hebasto approved
12. 
    hebasto commented at 4:58 PM on September 10, 2026: member

    re-ACK edc3e409812716791b8233ee41024a9d4ff06d89.

13. fanquake merged this on Sep 11, 2026
14. fanquake closed this on Sep 11, 2026

    ---

15. fanquake deleted the branch on Sep 11, 2026

Milestone
30.4