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     To have a complete OpenRISC build toolchain follow this step. 
We choose /usr/or32-uclinux as main ToolChain path because this is common 
on any modern distro. It is important to follow steps in order.


Building GNU Binutils:

(*) Choose a working dir.

        mkdir build-toolchain
        cd build-toolchain
    
(*) Get official binutils from gnu.org.

        wget ftp://ftp.gnu.org/gnu/binutils/binutils-2.16.1.tar.bz2
        tar -xvjf binutils-2.16.1.tar.bz2
    
(*) Get OpenRISC patch and apply on it.

        cd binutils-2.16.1
        cvs -d :pserver:cvs@cvs.opencores.org:/home/oc/cvs -z9 co or1k/binutils/binutils-2.16.1/binutils-2.16.1-unified.diff
        patch -p1 < or1k/binutils/binutils-2.16.1/binutils-2.16.1-unified.diff
    
(*) Compile it.

        mkdir build-or32-gnu-linux
        cd build-or32-gnu-linux
        ../configure  --prefix=/usr --target=or32-uclinux
        make
        
(*) Final Install
        make install
    

Install kernel headers:

(*) Grab from OC CVS only the needed headers.

        cvs -d :pserver:cvs@cvs.opencores.org:/home/oc/cvs -z9 co or1k/linux/linux-2.4/include/asm-or32
        cvs -d :pserver:cvs@cvs.opencores.org:/home/oc/cvs -z9 co or1k/linux/linux-2.4/include/asm-generic
        cvs -d :pserver:cvs@cvs.opencores.org:/home/oc/cvs -z9 co or1k/linux/linux-2.4/include/linux

(*) Install pools in the right path.

        mkdir -p /usr/or32-uclinux/include/
        mv or1k/linux/linux-2.4/include/asm-or32 /usr/or32-uclinux/include/asm
        mv or1k/linux/linux-2.4/include/asm-generic /usr/or32-uclinux/include/asm-generic
        mv or1k/linux/linux-2.4/include/linux /usr/or32-uclinux/include/linux


Now can compile GNU Gcc:

(*) Get official gcc from gnu.org.

        wget ftp://ftp.gnu.org/gnu/gcc/gcc-3.4.4.tar.bz2
        tar -xvjf gcc-3.4.4.tar.bz2

(*) Get OpenRISC patch and apply on it.

        cd gcc-3.4.4
        cvs -d :pserver:cvs@cvs.opencores.org:/home/oc/cvs -z9 co or1k/gcc/gcc-3.4.4/gcc-3.4.4-or32-unified.diff
        patch -p1 < or1k/gcc/gcc-3.4.4/gcc-3.4.4-or32-unified.diff

(*) Compile it.

        mkdir build-or32-gnu-linux
        cd build-or32-gnu-linux
        ../configure  --prefix=/usr --target=or32-uclinux
        make
        
(*) Final Install
        make install