Sergei Trofimovich 565a04569f c64-debugger: fix the build against gcc-15 ...

Without the chnage the build fails on `master` as
https://hydra.nixos.org/build/324451165:

```
In file included from Games/c64/Emulators/vice/monitor/asm6502.c:38:
Games/c64/Emulators/vice/monitor/montypes.h:44:13: error: 'bool' cannot be defined via 'typedef'
   44 | typedef int bool;
      |             ^~~~
Games/c64/Emulators/vice/monitor/montypes.h:44:13: note: 'bool' is a keyword with '-std=c23' onwards
```

2026-04-03 11:25:26 +01:00

..

package.nix

c64-debugger: fix the build against gcc-15

2026-04-03 11:25:26 +01:00