[flang-commits] [flang] [flang] Handle missing LOGIN_NAME_MAX definition in runtime (PR #77775)

[Rainer Orth via flang-commits]

rorth wrote:

It seems so, yes.  AFAICS that bot's use of `-Werror` is a non-standard configuration, so I missed this.

Unless I'm mistaken, this patch fixes the warnings.
[flang-vla.txt](https://github.com/llvm/llvm-project/files/13908487/flang-vla.txt)

At least it made the warning vanish on `amd64-pc-solaris2.11` and `x86_64-pc-linux-gnu` and passed testing on the latter.

https://github.com/llvm/llvm-project/pull/77775