[libcxx-commits] [libcxx] [libcxxabi] [libc++][RFC] Always define internal feature test macros (PR #89178)

[Pavel P via libcxx-commits]

pps83 wrote:

> _LIBCPP_HAS_NO_TIME_ZONE_DATABASE

this is defined in msys2, no idea why as they shouldn't have issues with iana tz db. @alexpux any idea?

https://github.com/llvm/llvm-project/pull/89178