[GHC] #15101: $tooldir not expanded for NoFib

[GHC]

#15101: $tooldir not expanded for NoFib
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        Reporter:  AndreasK          |                Owner:  alpmestan
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.6.1
       Component:  NoFib benchmark   |              Version:
  suite                              |
      Resolution:                    |             Keywords:
Operating System:  Windows           |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by alpmestan):

 * cc: alpmestan (added)
 * owner:  (none) => alpmestan


Comment:

 On IRC, Andreas pointed me to the `--info` output for both 8.2.1 and HEAD.
 See [http://lpaste.net/365396 this lpaste].

 The problem is that nofib uses the output of `--info` to set `CC` (and
 surely some other env vars), and we do not expand `$tooldir` in the
 `--info` output yet. We need to add a settings field `tooldir :: Maybe
 FilePath` and use it in `compilerInfo` to expand all occurences of
 `$tooldir`, using `expandToolDir`. The result should be a patch similar to
 [https://phabricator.haskell.org/D4222 this one], only for tooldir instead
 of topdir. I'll do my best to submit a diff that implements this sometimes
 this week.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15101#comment:2>
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