[MacPorts] #59292: base request: have a method to prepopulate environment variables for the build and destroot phases

[MacPorts]

#59292: base request: have a method to prepopulate environment variables for the
build and destroot phases
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  Reporter:  kencu        |      Owner:  (none)
      Type:  enhancement  |     Status:  closed
  Priority:  Normal       |  Milestone:
 Component:  base         |    Version:
Resolution:  fixed        |   Keywords:
      Port:               |
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Changes (by kencu):

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


Comment:

 the makefile PG was the step to fixing this

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Ticket URL: <https://trac.macports.org/ticket/59292#comment:4>
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