[Bug libstdc++/120299] GCC started using __flt128_t with no checking whatsoever

[tymi at tymi dot org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120299

--- Comment #1 from Tymi <tymi at tymi dot org> ---
The following code does not compile with libstdc++ under clang:
```cpp
#include <print>
int main(){}
```