[GHC] #3373: GHC API is not thread safe

[GHC]

#3373: GHC API is not thread safe
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Reporter:  jcpetruzza        |          Owner:                  
    Type:  feature request   |         Status:  new             
Priority:  normal            |      Component:  GHC API         
 Version:                    |       Severity:  normal          
Keywords:                    |       Testcase:                  
      Os:  Unknown/Multiple  |   Architecture:  Unknown/Multiple
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 There are some items of global state (the {{{NameCache}}} and the
 {{{PackageInterfaceTable}}}) that should be protected. One can workaround
 this by using a mutex and only invoking GHC API operations in one thread
 at a time.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3373>
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