[GHC] #9143: feature request: way to set actual program argv

[GHC]

#9143: feature request: way to set actual program argv
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        Reporter:  joeyhess          |                   Owner:
            Type:  feature request   |                  Status:  new
        Priority:  normal            |               Milestone:
       Component:  Runtime System    |                 Version:  7.8.2
      Resolution:                    |                Keywords:
Operating System:  Linux             |            Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
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Comment (by pgj):

 As far as I know, on FreeBSD, the recommended method for changing the
 value of `argv[0]` is calling the
 [https://www.freebsd.org/cgi/man.cgi?query=setproctitle&sektion=3
 setproctitle(3)] function.  I am not sure if rest of `argv` could be
 changed safely.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9143#comment:7>
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