https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55522
--- Comment #22 from Brendan Dolan-Gavitt <brendandg at nyu dot edu> --- I think loading shared libraries from within threads is actually pretty common when shared libs are used as plugins for some GUI app. I made a graph of the reverse dependencies of Debian packages that contain shared libraries linking to crtfastmath.o, and you can see that most of them are related to A/V plugins (e.g. the largest cluster is from gstreamer-plugins-bad): https://moyix.net/~moyix/ffast_debian.pdf Granted, I think you could argue in this case that only affecting the thread that loaded the plugin is the *intended* behavior.
