refactor: remove macOS MAP_ANONYMOUS work around #24746

1. 
   fanquake commented at 12:06 pm on April 3, 2022: member

   This was added to support compilation on macOS 10.10, our minimum required macOS is now 10.15. macOS has also supported it since 10.11.

   See #9063.

   macOS 12.3 manpage for mmap:

   0     MAP_ANONYMOUS     Synonym for MAP_ANON.
   1
   2     MAP_ANON          Map anonymous memory not associated with any specific file. 
   

2. refactor: remove macOS MAP_ANONYMOUS work around

   This was added to support compilation on macOS 10.10, our minimum
   required macOS is now 10.15. macOS has also supported it since 10.11.
   
   See https://github.com/bitcoin/bitcoin/pull/9063.

   112a7ab9a8
3. fanquake added the label macOS on Apr 3, 2022
4. 
   jarolrod commented at 8:28 am on April 4, 2022: member

   ACK 112a7ab9a8e4c96f5750ac3b929b433d8507354c

   Confirmed no problems with compilation on M1 with macOS 12.3 and x86 on 10.15 and 12.3. I’ve also confirmed that the manpages for osx 10.11.6 contains a declaration on MAP_ANONYMOUS. So this change should be fine.

   0MAP_ANONYMOUS     Synonym for MAP_ANON.
   

5. 
   laanwj commented at 10:52 am on April 4, 2022: member

   Code review ACK 112a7ab9a8e4c96f5750ac3b929b433d8507354c
6. laanwj merged this on Apr 4, 2022
7. laanwj closed this on Apr 4, 2022

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8. fanquake deleted the branch on Apr 4, 2022
9. sidhujag referenced this in commit 09e14b3a28 on Apr 4, 2022
10. DrahtBot locked this on Apr 4, 2023

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fanquake jarolrod laanwj

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