if [ -f ${currentWorkDir}/patches/files/revert_DRI2_swap.patch.gz ]; then
  zcat ${currentWorkDir}/patches/files/revert_DRI2_swap.patch.gz | patch -p1 --verbose
fi
if [ -f ${currentWorkDir}/patches/files/add_new_struct_compatible_dri2proto.patch.gz ]; then
  zcat ${currentWorkDir}/patches/files/add_new_struct_compatible_dri2proto.patch.gz | \
   patch -p1 --verbose
fi
if [ -f ${currentWorkDir}/patches/files/attachment_DRI2BufferHiz.patch.gz ]; then
  zcat ${currentWorkDir}/patches/files/attachment_DRI2BufferHiz.patch.gz | patch -p1 --verbose
fi