Hi again drunna
First of all i apologize for the late response. I was really busy this week. I comment you that i was already build and installed GCC without problems. I made what you say in the PS part:
PS: Make sure you first remove both the gcc-4.0.3 and the gcc-build directory and start with unpacking gcc before you restart (start fresh).
i removed the old GCC folder in order to start fresh as you say and, after that, i can compile and build LFS smoothly.
Thank you very much for your comments and best regards