Compilation pb of git-1.7.0.5

Dear all,

I tried to install git on a Quad-Core AMD Opteron(tm) Processor 8356, with the 
version 4.1.2 of gcc (Red Hat 4.1.2-14).

After the ./configure --prefix=$HOME/git, the make all gives me

- some warnings like
"fast-import.c: 2622: Warning: 2570, Value assigned to enumeration 
object "type" is different type."

- some errors like
"archive.c: 223: Serious: 4470, Initialization value must be address constant 
expression."
This error appears also on lines 309, 311, etc.

Thank you for any help.

.Yves.