Re: [PATCH 1/1] regex: fix broken clang build

[Paul Eggert]

Why isn't a similar patch needed for lib/regex.c?

Can you determine the earliest version of Clang that supports both "# 
pragma GCC diagnostic push" and "# pragma GCC diagnostic ignored 
"-Wvla""? A quick glance at the archived manuals suggests it goes back 
to at least Clang 4 but I suspect it's earlier. Knowing is better than 
guessing 9.

Thanks.