https://gcc.gnu.org/bugzilla/show_bug.cgi?id=24639 Bug 24639 depends on bug 70987, which changed state.
Bug 70987 Summary: missing -Wuninitialized calling built-in string functions with an uninitialized argument https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70987 What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |DUPLICATE