[Bug other/109306] The strstr implementation in libiberty might have undefined behavior (out of bounds mem access)

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109306

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to pmorf from comment #2)
> Oh. Is there a different implementation I'll link against when telling gcc
> to use the c++11 standard ?

I am saying that implementation is only used if the host's libc does not have
strstr for compiling/linking GCC itself; it is not used otherwise.

Otherwise the strstr implementation is in glibc on Linux or Apple's libc on Mac
OS X or musl on some Linux distro. Or in Microsoft's libc on Windows.