Correction for the fix for Bug 3508 - Persistent storage support breaks Linux compatibility.
A 2nd `make install' will fail attempting to create symlink libnvmemmory.so already created by 1st install.
Install should pre-emptively delete it.
The AmigaOS code has been removed from SDL, since it had been broken for a
long time and had a few bits of fairly invasive code #ifdef'd into the
SDL core.
However, there is an OS4 version of SDL here:
http://www.rcdrummond.net/amiga/index.html
And a MorphOS version here:
http://www.lehtoranta.net/powersdl/
--ryan.