[MacPorts] #39605: clang-3.3: upgrade failure on 10.6 - Availability.h not found

[MacPorts]

#39605: clang-3.3: upgrade failure on 10.6 - Availability.h not found
-------------------------------+----------------------
  Reporter:  david.w.watson@…  |      Owner:  mfeiri@…
      Type:  defect            |     Status:  new
  Priority:  Normal            |  Milestone:
 Component:  ports             |    Version:  2.1.3
Resolution:                    |   Keywords:
      Port:  clang-3.3         |
-------------------------------+----------------------

Comment (by larryv@…):

 Replying to [comment:20 beany_kelly@…]:
 > Replying to [comment:19 jeremyhu@…]:
 > >
 > > Ok, in your case, it's the dyld-headers and xnu-headers.  Please
 > > nuke those.
 >
 > Hi Jeremy. I just did the "clean" step before attempting to reinstall
 > clang-3.3, but with the same result.

 That’s because you need to deactivate or uninstall those ports entirely.

 > BUT ...
 >
 > Your mention of dyld-headers reminded me of an issue I've had for
 > months with MacPorts. Any new installation or upgrade requires that
 > I execute
 >
 > {{{ sudo port [install|upgrade|blah] ... }}}
 >
 > The first thing I see after this is the message:
 >
 > {{{ dyld: DYLD_ environment variables being ignored because main
 executable (/usr/bin/sudo) is setuid or setgid }}}
 >
 > Could this be related? It's cropped up in OSX-related boards, and
 > appears within some Macports ticket discussions, but doesn't seem to
 > have its own dedicated ticket ...

 It doesn’t have a ticket because it’s not a problem. It’s a security
 measure hard-coded into OS X’s dynamic linker, and it has no effect on
 searching for headers. If you want the warning to go away, remove the
 DYLD_ variables from your environment; otherwise just deal with the
 message.

-- 
Ticket URL: <https://trac.macports.org/ticket/39605#comment:21>
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