ENABLE_SDL1 must be set after commit https://github.com/cebix/macemu/commit/a46759990d33d7d1e2c7bac01459747d6180eb76 or else
symbols in video_sdl.cpp(VideoExit(), VideoInit() etc) will not be available, when building sheepshaver with
--enable-sdl-video. Sheepshaver and BasiliskII share the same SDL code,
so this must be changed as well.
ENABLE_SDL1 must be set after commit https://github.com/cebix/macemu/commit/a46759990d33d7d1e2c7bac01459747d6180eb76 or else symbols in video_sdl.cpp(VideoExit(), VideoInit() etc) will not be available, when building sheepshaver with --enable-sdl-video. Sheepshaver and BasiliskII share the same SDL code, so this must be changed as well.
Closes https://github.com/cebix/macemu/issues/218