# gzip -dc ../xv_patch/xv310a-jp-extension-rev5.3.3.tar.gz | tar xvf -
# /usr/local/bin/patch -p1 < xv-jp-extension/Patch.xv310a-ext-5.3.3
# cd /usr/local/compile/xv_patch
# gzip -dc XV+FLmask.v2.1.tar.gz | tar xvf -
# cd ../xv-3.10a
# /usr/local/bin/patch -p1 < ../xv_patch/XV+FLmask.v2.1/XV+FLmask.v2.1.patch