newlib-cygwin/winsup/cygwin/release/3.4.7

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Bug Fixes
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- Fix CPU_SET(3) macro type mismatch by making the macros type-safe.
Addresses https://cygwin.com/pipermail/cygwin/2023-March/253220.html
- kill(1): don't print spurious error message.
Addresses: https://cygwin.com/pipermail/cygwin/2023-March/253291.html
- Align behaviour of dirname in terms of leading slashes to POSIX:
https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap04.html
- Fix reading CONIN$ in non cygwin apps when stdin is not a pty.
Addresses https://cygwin.com/pipermail/cygwin/2023-April/253424.html
- Fix bug in cygheap allocation size computation after fork. Addresses:
https://cygwin.com/pipermail/cygwin-developers/2023-April/012620.html
- Fix return value of ilogbl(NaN).
Addresses: https://cygwin.com/pipermail/cygwin/2023-April/253511.html
- Fix error handling in readlinkat.
Addresses: https://cygwin.com/pipermail/cygwin/2023-April/253510.html
- Fix return code and errno set by renameat2, if oldfile and newfile
refer to the same file, and the RENAME_NOREPLACE flag is set.
Addresses: https://cygwin.com/pipermail/cygwin/2023-April/253514.html