I don't have access to libsdl2.0-dev on my system only libsdl2-dev (probably the same) Should I remove normal libsdl2?
In other news, your build works (sorta) It crashes when attempting to configure a controller.
There's 80 lines in the backtrace and I have no idea which ones are useful so heres a pastebin
http://pastebin.com/nB4AxcxH
I had been using the mercurial dev build of SDL
https://www.libsdl.org/hg.php
Which solved my segfault on second game start in dolphin 4.0-648 but when traversal servers got merged with master that dev build of SDL did not work with Netplay at all, so I switched back to SDL2 from my distro's repository, which was fine until 4.0-5908.
So I might recompile the HG build and see what happens with newer builds.
In other news, your build works (sorta) It crashes when attempting to configure a controller.
There's 80 lines in the backtrace and I have no idea which ones are useful so heres a pastebin
http://pastebin.com/nB4AxcxH
I had been using the mercurial dev build of SDL
https://www.libsdl.org/hg.php
Which solved my segfault on second game start in dolphin 4.0-648 but when traversal servers got merged with master that dev build of SDL did not work with Netplay at all, so I switched back to SDL2 from my distro's repository, which was fine until 4.0-5908.
So I might recompile the HG build and see what happens with newer builds.