doc: Install Rosetta on M1-macOS for qt in depends #22402

1. 
   hebasto commented at 10:45 am on July 5, 2021: member

   On master (c609e10545492aba480ff17aff7eefc13a0b5cd8) make -C depends qt on Apple Silicon based macOS 11.4 ends with an error:

   0/bin/sh: /Users/hebasto/bitcoin/depends/work/build/aarch64-apple-darwin20.5.0/qt/5.12.11-6c4d47a8f8f/qtbase/bin/moc: Bad CPU type in executable
   

   Installing Rosetta 2 fixes it.

   Explanation. On Apple Silicon macOS the qt package in depends actually is cross compiled. All native tools (including moc) are x86_64 binaries, that require Rosetta 2 to run.

2. doc: Install Rosetta on M1-macOS for qt in depends cdb41d5573
3. 
   hebasto commented at 10:46 am on July 5, 2021: member

   cc @promag @fanquake @jarolrod
4. fanquake added the label Docs on Jul 5, 2021
5. 
   promag commented at 9:47 pm on July 5, 2021: member

   ACK cdb41d5573b1e2ed1bc1d8d1dc9f77e82672ee1f.
6. sipa closed this on Jul 6, 2021

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7. sipa deleted the branch on Jul 6, 2021
8. MarcoFalke restored the branch on Jul 6, 2021
9. MarcoFalke reopened this on Jul 6, 2021

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10. 
    MarcoFalke commented at 5:59 am on July 6, 2021: member

    branch can be deleted after close or merge
11. fanquake approved
12. 
    fanquake commented at 12:35 pm on July 7, 2021: member

    ACK cdb41d5573b1e2ed1bc1d8d1dc9f77e82672ee1f - I have not tested after installing Rosetta 2, but I saw the same issue during my first cross-compile on an M1 box.
13. Zero-1729 approved
14. 
    Zero-1729 commented at 12:51 pm on July 7, 2021: contributor

    ACK cdb41d5573b1e2ed1bc1d8d1dc9f77e82672ee1f

    I had the same issue on an initial compile on the M1, glad to see this make it to the docs.

15. fanquake merged this on Jul 7, 2021
16. fanquake closed this on Jul 7, 2021

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17. 
    MarcoFalke commented at 1:04 pm on July 7, 2021: member

    The branch https://github.com/bitcoin/bitcoin/tree/210705-rosetta can now be deleted
18. laanwj deleted the branch on Jul 7, 2021
19. sidhujag referenced this in commit 62f22a2ee5 on Jul 10, 2021
20. fanquake referenced this in commit 0d7ecd5bef on Nov 25, 2021
21. sidhujag referenced this in commit dbd410944e on Nov 25, 2021
22. gwillen referenced this in commit 3f5b803a26 on Jun 1, 2022
23. DrahtBot locked this on Aug 16, 2022

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hebasto promag MarcoFalke fanquake Zero-1729

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