[MacPorts] #42347: dbus: launchctl: Couldn't stat /System/Library/LaunchDaemons/com.apple.DirectoryServicesLocal.plist

[MacPorts]

#42347: dbus: launchctl: Couldn't stat
/System/Library/LaunchDaemons/com.apple.DirectoryServicesLocal.plist
---------------------------------+------------------------
  Reporter:  j.orlandomurillo@…  |      Owner:  jeremyhu@…
      Type:  defect              |     Status:  reopened
  Priority:  Normal              |  Milestone:
 Component:  ports               |    Version:  2.2.1
Resolution:                      |   Keywords:
      Port:  dbus                |
---------------------------------+------------------------

Comment (by cal@…):

 Replying to [comment:20 j.orlandomurillo@…]:
 > I applied the patch you provided, reinstalled dbus, and it worked.

 Great, thanks for testing! I'll commit the patch and it'll be released
 with MacPorts 2.3 then.

 > What does that patch do exactly

 To create new system users, MacPorts executes `dscl`, a low-level tool
 provided by OS X to manage users. To execute this tool, MacPorts uses the
 Tcl function `exec`, which normally considers the execution of a tool to
 have failed, if the tool prints any output to stderr. My patch improves
 the error handling of user creation and avoids `exec` to cause an error
 when `dscl` prints a message to stderr.

 > why didn't the dbus installation affect my other computers?

 Because your other computers don't print `launchctl: Couldn't
 stat("/System/Library/LaunchDaemons/com.apple.DirectoryServicesLocal.plist"):
 No such file or directory` on stderr when executing `dscl`. As to why your
 other computers don't print this (or rather, why one of them does), I have
 no idea. `dscl` is an Apple tool that we're merely using and I don't know
 enough about its internals to be able to diagnose why it prints this
 (apparently harmless) message. I suppose this could be considered a bug in
 `dscl` and should be filed with Apple.

-- 
Ticket URL: <https://trac.macports.org/ticket/42347#comment:21>
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