[Bug c++/102600] [modules] ICE Segmentation fault during GIMPLE pass evrp

[johelegp at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102600

--- Comment #2 from Johel Ernesto Guerrero Peña <johelegp at gmail dot com> ---
A workaround:

```C++
export using byte = // Workaround GCC bug 102600.
#if not defined(NDEBUG) or (defined(__clang__) or not defined(__GNUC__))
  std::byte;
#else
  unsigned char;
#endif
```