[Bug c++/72796] [7 Regression] Firefox build error: use of deleted function

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72796

--- Comment #1 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
markus@x4 js % cat jsarray.ii
struct a;
template <int> struct b { typedef a c; };
struct d {
  void e(int);
};
struct a : d {
  void e(int) = delete;
};
template <int f> struct g : b<f>::c {
  g(int) { this->d::e(0); }
};
struct h : g<0> {
  using i = g;
  h() : i(0) {}
};

markus@x4 js % g++ -c jsarray.ii
jsarray.ii: In instantiation of ‘g<f>::g(int) [with int f = 0]’:
jsarray.ii:14:12:   required from here
jsarray.ii:10:12: error: use of deleted function ‘void a::e(int)’
   g(int) { this->d::e(0); }
            ^~~~
jsarray.ii:7:8: note: declared here
   void e(int) = delete;
        ^