[Bug sanitizer/58465] TSan deadlock in a single-threaded program

[oleg at smolsky dot net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58465

--- Comment #4 from Oleg Smolsky <oleg at smolsky dot net> ---
Also, I've just extracted the regex call into a tiny test app and there is no
deadlock... so, it is a bit puzzling...