Commit 43d1b42a5ada15109409a8b448a753e25b3b1c1d

Cameron Gutman 2021-11-16T17:59:38

cmake: Sync build config options with autotools - SDL_CLOCK_GETTIME now defaults to ON to match autotools build - Add detection of float.h and Xdbe - Fix detection of pthread_setname_np() (requires _GNU_SOURCE) - Move SDL_USE_IME definition into SDL_config.h.cmake