emacs-app-devel build fail on master not detected by buildbot

[Ryan Schmidt]

On Apr 22, 2021, at 21:48, Dan Ports wrote:

> To be clear, the problem here was that MacPorts uses the xcode-provided
> git, and certain older systems have a version of git that's too old to
> support the --shallow-since option, causing the port to break on
> systems where it's buildable today.

MacPorts base does not always use Xcode's git. The code is here:

https://github.com/macports/macports-base/blob/master/src/port1.0/portfetch.tcl#L192-L198

It currently uses Xcode git for OS X 10.10 Yosemite and later and MacPorts git for OS X 10.9 Mavericks and earlier.