I have to agree with Tejun, there will always be old executables lying
around and source code that nobody will bother updating that still use
legacy interfaces.
I have a handful of programs that are still OSS only (one of them,
spectemu, being still popular enough to be in several major distros).
I could update them to alsa, but most of them I use once or twice a
year, it doesn't make sense.
In all the world there are probably thousands of such apps, and
porting each and every one to newer interfaces (if it could be done at
all) would probably be a much bigger effort then implementing a
backward compatibility layer for OSS.
Miklos
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