[MacPorts] #63314: wgrib2 fails to install due to missing path in depspec (was: Computing dependencies for gradsError: Unable to execute port: can't read "search_path": no such variable)

[MacPorts]

#63314: wgrib2 fails to install due to missing path in depspec
--------------------------+----------------------
  Reporter:  Manish22332  |      Owner:  tenomoto
      Type:  defect       |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.7.1
Resolution:               |   Keywords:
      Port:  wgrib2       |
--------------------------+----------------------
Changes (by jmroot):

 * status:  new => assigned
 * priority:  High => Normal
 * owner:  (none) => tenomoto
 * keywords:  macport, grads =>
 * port:  grads => wgrib2


Comment:

 The depspec `path:gnutar:gnutar` is not valid because the middle component
 needs to be a path. Base should probably give a better error in this case,
 but regardless, the port should most likely be using a port: or bin:
 depspec anyway (depending on whether the system gnutar is acceptable). If
 there were multiple ports that could provide the gnutar executable, then
 the appropriate depspec would be `path:bin/gnutar:gnutar`.

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Ticket URL: <https://trac.macports.org/ticket/63314#comment:1>
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