Do you write (or want to write) portable C software with an #openbsd flavour? After many years of it languishing as a readme, I've finally put up a page for oconfigure, https://kristaps.bsd.lv/oconfigure, which creates a compatibility shim for doing just that. Take all the arc4random() and strtonum() goodness with you wherever your sources go! In the latest release, I've parallelised the configure script for faster feature detection. Have any non-portable OpenBSD goodies you want to be detected or added as a compatibility shim, or does the script with properly on any operating systems I haven't mentioned? I'm always happy to look at pull requests.