[MacPorts] #34221: sw_vers hangs during a build

[MacPorts]

#34221: sw_vers hangs during a build
--------------------------------+--------------------------
  Reporter:  richard.t.lloyd@…  |      Owner:  jeremyhu@…
      Type:  defect             |     Status:  assigned
  Priority:  Normal             |  Milestone:
 Component:  ports              |    Version:  2.0.4
Resolution:                     |   Keywords:  mountainlion
      Port:  gettext            |
--------------------------------+--------------------------

Comment (by ryandesign@…):

 Replying to [comment:50 jeremyhu@…]:
 > {{{
 > $ sudo -s
 > $ su macports -c "sw_vers -productVersion"
 > }}}

 This is the one that produces no output for me.

 > {{{
 > $ id macports
 > $ id <numerical uid for the macports user>
 > $ dscl localhost -read /Search/Users/macports
 > }}}

 {{{
 $ id macports
 uid=501(macports) gid=528(macports)
 groups=528(macports),12(everyone),61(localaccounts)
 $ id 501
 uid=501(macports) gid=528(macports)
 groups=528(macports),12(everyone),61(localaccounts)
 $ dscl localhost -read /Search/Users/macports
 dsAttrTypeNative:_writers_hint: macports
 dsAttrTypeNative:_writers_jpegphoto: macports
 dsAttrTypeNative:_writers_picture: macports
 AppleMetaNodeLocation: /Local/Default
 GeneratedUID: 653CB7F3-71DE-44A7-A342-F60304D3A91D
 NFSHomeDirectory: /opt/local/var/macports/home
 Password: *
 PrimaryGroupID: 528
 RealName: MacPorts
 RecordName: macports
 RecordType: dsRecTypeStandard:Users
 UniqueID: 501
 UserShell: /usr/bin/false
 $
 }}}

 > {{{
 > $ sudo -s
 > $ su macports -c "launchctl list"
 > }}}

 No output.

 Presumably this is because `su ... -c` tries to launch the user's shell,
 which is `false`?

-- 
Ticket URL: <https://trac.macports.org/ticket/34221#comment:57>
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