[GHC] #15541: package environment files and the GHC API

[GHC]

#15541: package environment files and the GHC API
-------------------------------------+-------------------------------------
        Reporter:  lspitzner         |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  highest           |            Milestone:  8.6.1
       Component:  GHC API           |              Version:  8.4.3
      Resolution:                    |             Keywords:  package
                                     |  environment
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Documentation     |  Unknown/Multiple
  bug                                |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #15513            |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by lspitzner):

 It is unfortunate and unintended that the scope of these ticket(s) got
 progressively larger. This was a consequence of my thought-process (1.
 this is cabal misfeature 2. I can at least fix one usecase if only the API
 was documented 3. no wait, this transcends my usecase and should be fixed
 for both ghc UI and API). Sorry about that.

 So while I'd like to have a ticket "turn package-environment feature off
 by default" for both UI and API, I don't want to create yet another
 ticket. I trust you can handle this appropriately.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15541#comment:9>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler