[GHC] #13141: Don't check for Perl in ./configure when not splitting objects

[GHC]

#13141: Don't check for Perl in ./configure when not splitting objects
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        Reporter:  dobenour          |                Owner:  dobenour
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.2.1
       Component:  Compiler          |              Version:  8.0.2
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by Demi Obenour <demiobenour@…>):

 In [changeset:"f07a6c17a3d6b32cc64b0b8318a05177fc098630/ghc"
 f07a6c17/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="f07a6c17a3d6b32cc64b0b8318a05177fc098630"
 Don't error on missing Perl, just warn and disable object splitting.

 Summary:
 If Perl isn't needed, we don't need to error out.  Since all Perl is
 used for is the splitter, we can just warn.

 Test Plan: GHC CI

 Reviewers: bgamari, hvr, austin

 Reviewed By: bgamari

 Subscribers: thomie, erikd

 Differential Revision: https://phabricator.haskell.org/D2986

 GHC Trac Issues: #13141
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13141#comment:1>
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