http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56637
--- Comment #12 from Fred Krogh <fkrogh#gcc at mathalacarte dot com> 2013-03-17 15:35:10 UTC --- For those using valgrind on gentoo for the first time (like me) you need to add to FEATURES in make.conf, "splitdebug" and re-emerge glibc. I've tried running valgrind on my program with no options. I does a lot of complaining about a "use" statement in connection with a library I'm using. Other than this, the next error it finds is beyond the point where I think the compiler goofed. The error found is one that my usual runtime also catches, and is either due to the previous error, or my usual sloppiness. I would ordinarily track down this error when I get to it. If there are special features in valgrind that I should be using, let me know and I'll give it a try. At this point it should be easy. I have tried making up a small example, but was unable to get the same problem. I'll try a bit more, but I don't think this is going to work.