The new behavior matches System 3.9.
- Use sel.WinFrameColor to draw selection cursor in EncloseType=0
- Implement EncloseType=1 (thick selection cursor)
- It always uses color 255, not WinFrameColor (System 3.9 bug?)
- EncloseType=2 uses MsgFontColor for background, WinBackgroundColor for
text
This removes X11 specific code, making SDL2 a hard dependency.
X-based environments are continue to be supported via SDL2.
This also removes joystick_linux.c which was only used if SDL2 was not
available.
This removes font.h dependency from header files such as ags.h and
nact.h. After this, font.h must be explicitly included in order to use
font functions.
kichikuou