Error when creating multilib-toolchain for x86_64 !

[yas]

Hi,

I am trying to create a multilib toolchain : x86_64-unknown-linux-gnu. with
following conf:-

kernel_header - 2.6.33.20
binutils           - 2.20.1a
gcc                - 4.7.2 (with enabled "use system zlib" because without
it i was facing some issues)
glib version     - 2.11
GMP - 4.3.2
MPFR - 2.4.2
PPL- 0.11
CLooG/ppl version (0.15.10)
MPC version (0.9)
(I have tried with some of downgraded version of glib and gcc also)

Problem part : When i build it, It stops with a major error :-
 [ERROR]      nptl/sysdeps/x86_64/tls.h:85:3: error: #error "TLS support is
required."

And with some other errors too. I tried with many other combinations too but
facing the same issue. my build machine is x86_64.

Please find the attached log and conf file.
config_file
<http://sourceware-org.1504.n7.nabble.com/file/n238748/config_file>  
build.log <http://sourceware-org.1504.n7.nabble.com/file/n238748/build.log>  
Thanks in advance,
Yash 



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