Rich Felker:
> The is fundamentally no build-time test possible for this. Even if we
> were willing to make flags for each bug (or missing feature) that was
> ever fixed indicating the change, that would only tell you whether the
> version present at build time had the property, not whether the
> version present at runtime does. With a distro, unless the distro
If you can provide a libc-musl runtime __version variable, then
Postfix can at run time determine that the library supports the
necessary functionality, and enable/disable DANE accordingly.
Wietse
