error when configureing any program

[Farrell Farahbod]

recently i was playing with gcc and gcc3 and somehow i messed it up pretty 
good...

now when ever i try to use ./configure or autogen.sh to compile a program 
from source i get this error:

===================================================================================
checking for gcc... gcc
checking for C compiler default output... configure: error: C compiler 
cannot create executables
===================================================================================

heres a complete output when i try tunning configure for metatheme for 
example:

===================================================================================
[upgrdman@farrell metatheme]$ ./configure
checking for a BSD compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking whether make sets ${MAKE}... yes
checking for working aclocal... found
checking for working autoconf... found
checking for working automake... found
checking for working autoheader... found
checking for working makeinfo... found
checking whether to enable maintainer-specific portions of Makefiles... no
checking for gcc... gcc
checking for C compiler default output... configure: error: C compiler 
cannot create executables
[upgrdman@farrell metatheme]$
===================================================================================

i'm really confused, and have definitly learned my lesson :)

any help is appriciated,

thanx,

farrell f.

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