https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78217
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Similar testcase without auto, but in a template:
template <typename T>
int foo ()
{
extern int a;
extern T a;
return a;
}
template <typename T>
int bar ()
{
extern int b;
extern T b;
return b;
}
int c = foo <int> ();
int d = bar <long long> ();
g++ errors in both cases, clang++ only when T isn't int.
