[Bug c/121545] New: _Static_assert() supported even in C89 and C99 modes

[jbeulich at suse dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121545

            Bug ID: 121545
           Summary: _Static_assert() supported even in C89 and C99 modes
           Product: gcc
           Version: 14.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jbeulich at suse dot com
  Target Milestone: ---

The construct was introduced in C11, and hence for earlier standards it should
only be supported as an extension. With -std=c89 and -std=c99 I therefore would
expect its uses to cause diagnostics.