[GHC] #7992: Wrong invocation of configure script in libffi and integer-gmp

[GHC]

#7992: Wrong invocation of configure script in libffi and integer-gmp
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    Reporter:  merijn            |       Owner:                     
        Type:  bug               |      Status:  patch              
    Priority:  normal            |   Milestone:                     
   Component:  Build System      |     Version:  7.7                
    Keywords:  patch             |          Os:  Unknown/Multiple   
Architecture:  Unknown/Multiple  |     Failure:  Building GHC failed
  Difficulty:  Unknown           |    Testcase:                     
   Blockedby:                    |    Blocking:                     
     Related:                    |  
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Comment(by igloo):

 How curious:
 {{{
 ghc/libffi/build$ cat `which configure`
 #!/bin/sh

 echo Hello, this is my configure

 ghc/libffi/build$ sh configure --help
 Hello, this is my configure

 ghc/libffi/build$ sh ./configure --help
 `configure' configures libffi 3.0.11 to adapt to many kinds of systems.
 [...]
 }}}
 configure seems to try to find the location of the configure script, and
 re-exec itself. This goes wrong if there's a configure script in `$PATH`
 and we use `sh configure`.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7992#comment:4>
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