I wouldn't call it a dark day. All lived a long and varied life and their passing doesn't come unexpected.
I saw Coleman live a few years ago an Enjoy Jazz in Mannheim and I was impressed of the force he still had on stage at his advanced age. It really felt like this was the please he belonged to.
Indeed. At that age, it's expected that it will happen sometime. Since I was born far after the sixties, but love that period in jazz, I try to see as many musicians of that period/generation as possible.
I am very happy/fortunate to have seen him at North Sea Jazz 2010. It was great and powerful. He was also scheduled for Jazz Middelheim 2012, but unfortunately had to cancel at the last moment. One of my other favorites, John Zorn, aptly filled the spot (since there definitely is a Coleman heritage in Spy vs. Spy, Naked City, Masada, etc.).
Yup, this is very much why I have put zero effort into documenting them: they deeply rely on compiler internals, and I have enough other work to do without helping create de-facto standardization, like what happened with macros...
]I've regularly experienced issues with not the development system not being the target system _within linux distros_. Just go the whole way and develop with the target environment isolated from your host system.
You're not running Linux, you are running _some version of Linux_.