Not only is FMOD neither free (libre) nor free (gratis), the version we
support(ed) is also impossible to legally obtain anymore. So there's no
reason we should keep code around that (pretends to) support a library
nobody can use or test.
There's no point in splitting the audio library selection into multiple
CPP macros, since there can always only be one anyway. Merge all of them
into a single macro AUDIO_TK (for "toolkit") and have CMake select one
for the user, instead of making him choose (and potentially failing).
As discussed in http://forum.openclonk.org/topic_show.pl?tid=2917, I
have merged all copyright notices into a single file and referenced that
merged file from each source file.
For the updated source files, the timeline has been split into three
parts:
1. Pre-RWD code (before 2001)
2. RWD code (2001 through 2009)
3. OpenClonk code (2009 and later)
All pre-RWD copyright notices have been left intact, as have RWD-era
copyright notices where the file did not have a RedWolf design copyright
notice but only individual author ones. All copyright notices of the
OpenClonk era have been replaced by a single notice ranging from the
first recorded year to the current year (2013). Mape code did not get a
OpenClonk Team copyright notice because it is somewhat separate from the
main OpenClonk codebase and has only been touched by Armin Burgmeier.
This ensures that classes that inherit from these have their destructors
called even if they are deleted with a pointer to the base class.
Though at the moment, this just silences a warning.
This time with more manual checking and using git blame -M -C, so that
a few cases of copied code get a copyright notice corresponding to
their initial introduction.