https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116847
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
At least on i686-linux, I think this is PCH related, moving away the
stdc++.h.gch directory makes the warning disappear, so it is some kind of
interaction between the diagnostics ignores recorded during PCH writing vs.
their later use.
Unfortunately simple:
[[deprecated]] int foo () { return 42; }
template <int N>
struct S {
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
static int bar () { return foo (); }
#pragma GCC diagnostic pop
};
header and
#include "pr116847.h"
int a = S<0>::bar ();
doesn't reproduce that (with PCH).
