# BSDoptarg

- **Language:** C
- **Kind:** attribute
- **Source:** https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/compat.h#L476
- **Page:** https://libtmux.org/en/tmux/latest/reference/c-variable-bsdoptarg/

```c
char * BSDoptarg;
```

## Referenced by

- [`optarg`](/en/tmux/latest/reference/c-define-compat-h-optarg/) (constant)
- [`recallocarray`](/en/tmux/latest/reference/c-function-recallocarray/) (function)