On Jan 28, 2022, at 23:15, Jim DeLaHunt wrote: > On 2022-01-26 02:59, Joshua Root wrote: > >> …In any case, we maintain lists of functions that are known not to exist on >> each macOS version, so the warning can be suppressed. They are in the ports >> tree here: >> <https://github.com/macports/macports-ports/tree/master/_resources/port1.0/checks/implicit_function_declaration>… > I have filed Pull Request #13804 ''64550 Add 'at_quick_exit' to 10.14 > whitelist'' <https://github.com/macports/macports-ports/pull/13807> to, as > the title says, add function name 'at_quick_exit' to the macosx10.14 implicit > declaration whitelist. I would appreciate attention to that PR when it is > convenient for the right person. > > I imagine that this same function name should be added to whitelists for > other SDK versions. But I don't know how to test and confirm this. Is there a > process for checking whitelist entries across all SDK versions? Say, via the > buildbots?
I don't think there's any process. However, if you determine that a function is not in an SDK, it seems almost certain that it won't be in any earlier SDK either. Apple adds functions to the OS over time; it doesn't tend to remove them (at least when it comes to standard language features; they do on occasion remove Apple-specific functionality like certain frameworks). > Once a whitelist is modified, when does a MacPorts installation benefit from > that change? Immediately, because the implicit function declaration code > reaches back to MacPorts to get the most recent whitelists? After the next > port selfupdate? After the next port base code new version release? The files are in the macports-ports repository, therefore the user receives the changes when the user updates their ports tree, i.e. sudo port sync or sudo port selfupdate. I updated this in the wiki page with a few other edits. > Also, I could not find documentation on the whitelist process, or on the > Portfile declaration > "configure.checks.implicit_function_declaration.whitelist-append". configure.checks.implicit_function_declaration.whitelist and the rest of the implicit function declaration checking code was just recently added to MacPorts (2.7.0) and nobody got around to writing documentation for it yet. -append, -prepend, -delete, -replace, -strsed are operators that can be used on any MacPorts list variables.
