Aka `HAVE_GETADDRINFO_THREADSAFE`.
- enable it for OpenBSD 5.4+ (2013-11-01).
Also adjust cmake pre-fill.
- explicitly opt-in DragonFly BSD, for 2.2.0+ (2009-02-17).
Assuming this commit implemented this feature:
21fcee4d6e (diff-498ff649e8770eb9a94e99a399a4b473fcea41ef58b033a2a2dae3809e17bb04)
Prior to this patch it was enabled in autotools by accident, because
its host ID misses `bsd` so the global BSD disable was not applied.
- autotools: fix to enable for Darwin 9+ / macOS 10.5+ (2007-10-26).
Prior to this patch it was Darwin 6 / macOS 10.2.
Source: https://github.com/python/cpython/issues/70112
Ref: https://en.wikipedia.org/wiki/MacOS_version_history
10.5 was the first one UNIX '03 certified, which requires this
feature. iOS and others were forked from this codebase, so they also
have support.
- cmake: add version numbers as comments.
Sadly the OS versions are not verified. This and the autotools logic
could possibly be implemented in `curl-setup.h` more accurately, for
all build systems, without duplicating logic.
Also:
- cmake: `BSD` variable requires CMake 3.25+, add fallback code where
missing.
Ref: https://cmake.org/cmake/help/v3.25/variable/BSD.html
- unix-cache.cmake: stop listing all BSDs for `HAVE_PIPE2`,
and fix generic BSD filter for CMake <3.25.
- unix-cache.cmake: stop listing all BSDs, since it's prefilled anyway
for those via `OtherTests.cmake`.
Ref: https://github.com/curl/curl/pull/22138#issuecomment-4773617195Closes#22148
fbcce4da85