[MacPorts] #56194: PEV looks for data on /usr/local, not from /opt/local

[MacPorts]

#56194: PEV looks for data on /usr/local, not from /opt/local
--------------------+-----------------
 Reporter:  Lisias  |      Owner:
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:
 Keywords:          |       Port:  PEV
--------------------+-----------------
 PEV is looking for plugins on '''/usr/local/lib/pev/plugins'''. This is an
 error, as MacPorts uses /opt/local as prefix.

 How to reproduce:

 {{{
 macmini:~ su$ sudo port install pev
 --->  Computing dependencies for pev
 --->  Fetching archive for pev
 --->  Attempting to fetch pev-0.80_0.darwin_16.x86_64.tbz2 from
 https://packages.macports.org/pev
 --->  Attempting to fetch pev-0.80_0.darwin_16.x86_64.tbz2 from
 http://ywg.ca.packages.macports.org/mirror/macports/packages/pev
 --->  Attempting to fetch pev-0.80_0.darwin_16.x86_64.tbz2 from
 http://sea.us.packages.macports.org/macports/packages/pev
 --->  Fetching distfiles for pev
 --->  Verifying checksums for pev
 --->  Extracting pev
 --->  Applying patches to pev
 --->  Configuring pev
 --->  Building pev
 --->  Staging pev into destroot
 --->  Installing pev @0.80_0
 --->  Activating pev @0.80_0
 --->  Cleaning pev
 --->  Updating database of binaries
 --->  Scanning binaries for linking errors
 --->  No broken files found.
 macmini:~ su$ peres
 }}}

 Current (erroneous) result:

 {{{
 plugins: could not open directory '/usr/local/lib/pev/plugins' -- No such
 file or directory
 }}}

 Expected result:

 peres should not exit in error.

--
Ticket URL: <https://trac.macports.org/ticket/56194>
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