[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
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Reporter:  singpolyma           |          Owner:                  
    Type:  feature request      |         Status:  new             
Priority:  normal               |      Component:  Compiler        
 Version:  7.7                  |       Keywords:                  
      Os:  Unknown/Multiple     |   Architecture:  Unknown/Multiple
 Failure:  Building GHC failed  |      Blockedby:                  
Blocking:                       |        Related:                  
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Comment(by dterei):

 So I'm not that familiar with the build system and m4 but looking at this.

 However, wouldn't a user typically install llvm on Debian by installing
 the 'llvm' package. This installs the tools without version suffixes. Its
 arguable that in the case of a user installing llvm-3.0 package and not
 the llvm package we shouldn't be trying to handle this for them.

 My concern is that I'll only be able to detect opt-3.0 or opt-2.7 or
 opt-3.2 by enumerating different version possibilities in the
 configure.ac. Which seems ugly...

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7661#comment:1>
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