Solved.

Under my ghc6.12.3 environment, I manually downloaded and installed the encoding-0.6.3 package together with mtl-1.1.0.2, and pin HaXml to 1.19 ,

Modify the dependence rules of
mtl to mtl <2
HaXml>=1.19 to HaXml=1.19
Then

runhaskell Setup configure --flags=splitBase --flags=newGHC --user --ghc
runhaskell Setup build
runhaskell Setup install

works,

sorry to bother

Regards
Gang
On 08/17/2011 04:59 PM, Gang Yu wrote:
hi, cafe:

    I go through to the encoding package installation problem again.

 cabal install encoding
Resolving dependencies...
/tmp/encoding-0.6.68093/encoding-0.6.6/dist/setup/setup: 4: Syntax error: ";" unexpected

when I have a check on the this issue, I get:

file ~/.cabal/packages/hackage.haskell.org/encoding/0.6.6/encoding-0.6.6/dist/setup/setup
/home/gang/.cabal/packages/hackage.haskell.org/encoding/0.6.6/encoding-0.6.6/dist/setup/setup: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.27, not stripped

My machine is:

gang@gang-laptop:~$ uname -a
Linux gang-laptop 2.6.38-8-generic #42-Ubuntu SMP Mon Apr 11 03:31:50 UTC 2011 i686 i686 i386 GNU/Linux

is this related? How can I manually install the package from scratch? Any helps or directs will be appreciated

Thanks
Gang