[GHC] #7592: Building the latest master branch on FreeBSD 9.1 fails

[GHC]

#7592: Building the latest master branch on FreeBSD 9.1 fails
---------------------------------+------------------------------------------
    Reporter:  kazu-yamamoto     |       Owner:  pgj                
        Type:  bug               |      Status:  new                
    Priority:  normal            |   Milestone:                     
   Component:  Build System      |     Version:  7.7                
    Keywords:                    |          Os:  FreeBSD            
Architecture:  Unknown/Multiple  |     Failure:  Building GHC failed
  Difficulty:  Unknown           |    Testcase:                     
   Blockedby:                    |    Blocking:                     
     Related:                    |  
---------------------------------+------------------------------------------

Comment(by igloo):

 Hmm, on line 3039 of the log `inplace/bin/ghc-cabal` is created:
 {{{
 Invoking recipe from utils/ghc-cabal/ghc.mk:22 to update target
 `inplace/bin/ghc-cabal'.
 "cp" utils/ghc-cabal/dist/build/tmp/ghc-cabal inplace/bin/ghc-cabal
 }}}
 but then on line 5291 it appears to be out-of-date and gets rebuilt:
 {{{
     Prerequisite `utils/ghc-cabal/dist/build/tmp/ghc-cabal' is newer than
 target `inplace/bin/ghc-cabal'.
     Prerequisite `inplace/bin//.' is order-only for target `inplace/bin
 /ghc-cabal'.
    Must remake target `inplace/bin/ghc-cabal'.
 Need a job token; we don't have children
 Invoking recipe from utils/ghc-cabal/ghc.mk:22 to update target
 `inplace/bin/ghc-cabal'.
 "cp" utils/ghc-cabal/dist/build/tmp/ghc-cabal inplace/bin/ghc-cabal
 }}}

 I can't see any reason for it being out-of-date. Please could you try
 modifying the `GHC_CABAL_INPLACE` rule on line 21 of `utils/ghc-
 cabal/ghc.mk` to this:
 {{{
 $(GHC_CABAL_INPLACE) : $(GHC_CABAL_DIR)/dist/build/tmp/ghc-cabal$(exeext)
 | $$(dir $$@)/.
     -stat $<
     -stat $@
     "$(CP)" $< $@
     -stat $<
     -stat $@
 }}}
 and do a build? Perhaps the output will give some insight.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7592#comment:10>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler