ghc-pkg to build ghci libraries on install

This is with GHC 6.4.1.

ghci is not supported on AIX.

I recently tried to isntall MissingH with Cabal.  I got:

# ./setup install
Installing: /usr/local/lib/MissingH-0.12.0 &
/usr/local/bin MissingH-0.12.0...
Registering MissingH-0.12.0...
Reading package info from ".installed-pkg-config" ... done.
building GHCi library
/usr/local/lib/MissingH-0.12.0/HSMissingH-0.12.0.o...ld:
0706-027 The -x flag is ignored.
ld: 0706-012 The -- flag is not recognized.
ld: 0706-012 The -w flag is not recognized.
ld: 0706-012 The -h flag is not recognized.

ghc-pkg list does not see the package after this, either.

I'm not sure why Cabal seems to think it needs to build
a GHCi library, and it's even more concerning that
invalid flags are being given to ld.

Trac metadata

Trac field	Value
Version	None
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	ResolvedWon'tFix
Component	Build System
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