default_pre_build    &&
cd $SOURCE_DIRECTORY &&
if ! is_depends_enabled gpm ; then
  sedit 's/-D_VIPER_MOUSE_GPM //' Makefile
fi &&
sedit "s#/usr/local#${INSTALL_ROOT}/usr#g" Makefile &&
sedit 's#all: clean vdk.o libviper#all: clean libviper#g' Makefile &&
sedit '/.*cd vdk && $(MAKE)/d' Makefile &&
sedit '/^vdk.o:/d' Makefile
