[GHC] #7661: GHC build system does not detect opt-3.0 and friends

[GHC]

#7661: GHC build system does not detect opt-3.0 and friends
---------------------------------+------------------------------------------
    Reporter:  singpolyma        |        Owner:                     
        Type:  feature request   |       Status:  new                
    Priority:  normal            |    Component:  Compiler           
     Version:  7.7               |   Resolution:                     
    Keywords:                    |           Os:  Unknown/Multiple   
Architecture:  Unknown/Multiple  |      Failure:  Building GHC failed
   Blockedby:                    |     Blocking:                     
     Related:                    |  
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Comment(by singpolyma):

 The following fixes this regression:

 {{{
 diff --git a/aclocal.m4 b/aclocal.m4
 index 2ab4ad5..dab7438 100644
 --- a/aclocal.m4
 +++ b/aclocal.m4
 @@ -2022,7 +2022,7 @@ AC_DEFUN([FIND_LLVM_PROG],[
          for p in ${PATH}; do
              if test -d "${p}"; then
                  $1=`${FindCmd} "${p}" -type f -perm +111 -maxdepth 1
 -regex '.
 -                if test -n "$1"; then
 +                if test -n "$$1"; then
                      break
                  fi
              fi
 }}}

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7661#comment:13>
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