[Bug analyzer/125463] New: errno not picked up for wasi-libc

[feedabl3 at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125463

            Bug ID: 125463
           Summary: errno not picked up for wasi-libc
           Product: gcc
           Version: 17.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: analyzer
          Assignee: dmalcolm at gcc dot gnu.org
          Reporter: feedabl3 at gmail dot com
  Target Milestone: ---

gcc/testsuite/c-c++-common/analyzer/errno-1.c is failing on wasm32

The issue seems to be caused by wasi-libc using
```
extern _Thread_local int errno;

#define errno errno
```
as their implementation of errno.

See https://forge.sourceware.org/gcc/gcc-TEST/pulls/160/files#issuecomment-6046
for further details.