Sergei Trofimovich e4374a3b2f hashrat: fix gcc-15 build failure ...

Without the change build fails on master as
https://hydra.nixos.org/build/319912510:

```
xdialog.c:74:9: error: conflicting types for 'XDialogDisplayPage'; have 'STREAM *(const char *, HashratCtx *)'
   74 | STREAM *XDialogDisplayPage(const char *Dialog, HashratCtx *Config)
      |         ^~~~~~~~~~~~~~~~~~
```

2026-02-14 22:35:50 +00:00

..

package.nix

hashrat: fix gcc-15 build failure

2026-02-14 22:35:50 +00:00