Gcc install prb

[Af Clement]

Hi, I had some trouble with Gcc so I reinstall 
bin-utils, Gcc, Cpp for my RedHat 6.0 on a i686
But now when a want to compile a source, gcc/g++ 
doesn't find the libs ! 
For exemple :
#include <iostream.h> will stop Gcc : "file 
not found"
Is it a config problem ?
Thanks.
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