[Bug tree-optimization/66826] Unused result from dlsym in constructor results in a segfault

[tetra2005 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66826

--- Comment #6 from Yuri Gribov <tetra2005 at gmail dot com> ---
(In reply to Rich Felker from comment #5)
> maybe there are workarounds glibc could do to prevent tco without needing a
> new attribute...

X-posted to Glibc BZ: https://sourceware.org/bugzilla/show_bug.cgi?id=21050