Just a follow up comment. Apparently the instructions for
installing all libraries at once in the tutorial don't work for
OpenSuse. So I couldn't just install the SDL library but had
to install the other libraries individually:
So just in case there are any other OpenSuse users out there
(note, I suppose I didn't need the devel version of libSDL2
...):
sudo zypper in libSDL2-devel
sudo zypper in libSDL2_image-2_0-0
sudo zypper in libSDL2_mixer-2_0-0
sudo zypper in libSDL2_ttf-2_0-0
I will add this to the installation tutorial. Unfortunately I did
not tested Dgame with OpenSUSE, sorry for your trouble.