The vsync may immediately fallback to another option after change from
the user so the UI should reflect that.
Todo: show a popup in UI informing the user why their desired vsync
option couldn't be set. Right now the error message is visible only from
the logs.
Now VSync list is aligned for same height as resolution list from the bottom, as it's very hard to align them from top on different screen resolutions.
-Wmissing-declarations enforces that every function (except for static
functions) must be declared separately before it's defined. This
essentially enforces that every function must be either static, or
declared in a header elsewhere.
This helps the optimizer, as it can do a better job of inlining if it
knows that a function won't be used outside of a given file. It also
helps -Wunused-function (which is enabled by -Wall) find more unused
functions.
Note that Clang spells this option -Wmissing-prototypes, which
confusingly is the name of a related but different warning option under
GCC.
MrSimbax