Thanks for the report. This has been fixed in current master.
MOHAWK: Riven crash on Bookmaking Island
I added the missing include in 15cc188
Thanks for the report, should be fixed in b51589e9
MYST: Cursor stays hidden after loading saved game while intro is playing
I got this one today with the OpenGL backend and SDL 1.2. SDL was sending events...
Thanks for the bug report. This is now fixed by commit 3391c726.
MOHAWK: Myst (Spanish) graphic glitch