-# We need to find tools in the toolchain and in the install directory.
-export PATH=$PREFIX/bin:$TOOLCHAIN/bin:$PATH
+# Remove build directory contents (if any) and create a new build dir.
+rm -rf $BUILDDIR
+mkdir $BUILDDIR
+cd $BUILDDIR
+
+# Build host Python before we start messing with the environment.
+wget http://python.org/ftp/python/3.3.3/Python-3.3.3.tar.xz
+tar xJf Python-3.3.3.tar.xz
+cd Python-3.3.3
+./configure
+make python
+make Parser/pgen
+mv python hostpython
+mv Parser/pgen Parser/hostpgen
+cd ..