[GHC] #9807: Only test for bug #9439 when llvm is installed (was: Clarify warning if LLVM is not found by configure)

[GHC]

#9807: Only test for bug #9439 when llvm is installed
-------------------------------------+-------------------------------------
              Reporter:  ihmccreery  |            Owner:
                  Type:  feature     |           Status:  new
  request                            |        Milestone:
              Priority:  low         |          Version:  7.8.3
             Component:  Build       |         Keywords:
  System                             |     Architecture:  Unknown/Multiple
            Resolution:              |       Difficulty:  Unknown
      Operating System:              |       Blocked By:
  Unknown/Multiple                   |  Related Tickets:
       Type of failure:  Other       |
             Test Case:              |
              Blocking:              |
Differential Revisions:  Phab:D500   |
-------------------------------------+-------------------------------------
Changes (by thomie):

 * failure:  Documentation bug => Other
 * differential:   => Phab:D500


Comment:

 Thanks for the report. A patch is up for review. It will now just show:
 {{{
 checking for llc... no
 checking for opt... no
 }}}

 or
 {{{
 checking for llc... yes
 checking for opt... yes
 checking whether bootstrap compiler is affected by bug 9439... <yes|no>
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9807#comment:1>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler