Although our development environment is primarily geared to Linux, it
is possible to develop and test on Windows, using Cygwin.  To do so,
do the following, adapting it to your local environment.

To develop on windows, you will install:

- a specific version of binutils (targetting i386-elf)
- a specific version of gcc (targetting i386-elf)
- a specific version of nasm, patched for VT and SVM instructions
- the as86, bcc, and ld86 tools from Dev86 (these are needed to build
the bioses and other vm boot package components)


To start, install cygwin (see cygwin.org).  We have done a complete
installation ("all" -> "install") in our environment, and would
recommend it. 

Run a bash shell.

Check out vmm-dev from CVS, or unpack a copy from a tarball.  
In the following, we assume /home/pdinda/Codes/vmm-dev
is the checked-out directory

export DEVROOT=/home/pdinda/Codes/vmm-dev
mkdir $DEVROOT/devtools
export LOCATION=$DEVROOT/devtools

Now build and install binutils into $LOCATION:

cd $DEVROOT/utils
tar xfz binutils-2.16.91.0.7.tar.gz
cd binutils-2.16.91.0.7
./configure --prefix=$LOCATION/i386 --target=i386-elf --disable-nls
make -j 4 all
make install

Now build and install gcc:

cd $DEVROOT/utils
tar xfz gcc-3.4.6.tar.gz
export PATH=$LOCATION/i386/bin:$PATH
cd gcc-3.4.6
./configure --prefix=$LOCATION/i386 --target=i386-elf --disable-nls --enable-languages=c,c++ --without-headers
make -j 4 all-gcc
make install-gcc

Now build and install the patched nasm:

cd $DEVROOT/utils
tar xfz nasm-0.98.39.tar.gz
cd nasm-0.98.39
patch < ../vmx.patch 
patch < ../nasm-install.patch
./configure --prefix=$LOCATION
make
make install

install bcc and other components of dev86:

cd $DEVROOT/utils
tar xvf Dev86src-0.16.17.tar.gz
cd dev86-0.16.17
make as86 ld86 bcc86
make -C cpp
cp as/as86.exe bcc/bcc.exe bcc/bcc-cc1.exe cpp/bcc-cpp.exe ld/ld86.exe $LOCATION/bin

Now test:

cd $DEVROOT/vmm-hack1/build
export PATH=$PATH:$LOCATION/bin

make world

This should succeed, leaving you with a vmm.img file.