Installing git from source - tooltwist/documentation GitHub Wiki

Steps are:
Download all gcc and other stuff
Download source and compile.

yum -y install zlib-devel openssl-devel cpio expat-devel gettext-devel gcc    
     
cd /opt   
wget http://git-core.googlecode.com/files/git-1.7.12.tar.gz   
tar xvzf git-1.7.12.tar.gz   
cd git-1.7.12   
./configure   
make  
make install