Lem SDL2 opens and hangs on 2020 M1 MacBook Air running Sonoma 14.6.1

[m-bob]

Hi!

Thanks for creating Lem!

Lem Ncurses runs fine on my machine. Lem SDL2 opens a window, then displays 2 lines:

0: dashboard
SDL Error (#<SDL-SURFACE {#X0000000)}>): Text has zero width

The menubar is responsive, but the application window is not. I do not see a dashboard, unlike Lem Ncurses, which properly displays one.

The problem may be in my installation of SDL2, but I installed SDL2 to use Lem and have no independent way to know if it is working properly.

Can you help?

Thanks!

Murray

[m-bob]

Update:

I reinstalled sdl2 etc. using brew. I recompiled lem, this time only the sdl2 interface. I still get the same error, but now there's terminal output when I launch lem:

❯ ./lem
lem(79377,0x203270f40) malloc: Incorrect checksum for freed object 0x11d8dca00: probably modified after being freed.
Corrupt value: 0x3a91a2b4
lem(79377,0x203270f40) malloc: *** set a breakpoint in malloc_error_break to debug
fatal error encountered in SBCL pid 79377 pthread 0x203270f40:
SIGABRT received.

Welcome to LDB, a low-level debugger for the Lisp runtime environment.
ldb> [1] 79377 killed ./lem