[MacPorts] #59260: sudo port upgrade outdated generates multiple errors

[MacPorts]

#59260: sudo port upgrade outdated generates multiple errors
---------------------------+----------------------
  Reporter:  PaxVobiscuit  |      Owner:  (none)
      Type:  defect        |     Status:  reopened
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.6.1
Resolution:                |   Keywords:
      Port:                |
---------------------------+----------------------
Changes (by PaxVobiscuit):

 * status:  closed => reopened
 * resolution:  invalid =>


Comment:

 After  Port Sync, then sudo port upgrade, everything seemed to run fine.
 Once I try to run sudo port upgrade outdated I get the following:


 {{{
 Warning: All compilers are either blacklisted or unavailable; defaulting
 to first fallback option
 Warning: All compilers are either blacklisted or unavailable; defaulting
 to first fallback option
 Warning: All compilers are either blacklisted or unavailable; defaulting
 to first fallback option
 Warning: All compilers are either blacklisted or unavailable; defaulting
 to first fallback option
 Warning: All compilers are either blacklisted or unavailable; defaulting
 to first fallback option
 Warning: All compilers are either blacklisted or unavailable; defaulting
 to first fallback option
 Warning: All compilers are either blacklisted or unavailable; defaulting
 to first fallback option
 Warning: All compilers are either blacklisted or unavailable; defaulting
 to first fallback option
 Warning: All compilers are either blacklisted or unavailable; defaulting
 to first fallback option
 Warning: All compilers are either blacklisted or unavailable; defaulting
 to first fallback option
 Warning: All compilers are either blacklisted or unavailable; defaulting
 to first fallback option
 Warning: All compilers are either blacklisted or unavailable; defaulting
 to first fallback option
 Warning: All compilers are either blacklisted or unavailable; defaulting
 to first fallback option
 Warning: No port libomp found in the index.
 Warning: No port llvm-9.0 found in the index.
 Warning: No port python27 found in the index.
 Warning: No port libedit found in the index.
 Warning: No port libffi found in the index.
 Warning: No port ncurses found in the index.
 Warning: No port zlib found in the index.
 Warning: No port libcxx found in the index.
 Warning: No port clang_select found in the index.
 Warning: No port ld64 found in the index.
 Error: Problem while installing clang-9.0
 Error: Follow https://guide.macports.org/#project.tickets to report a bug.
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/59260#comment:6>
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