https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77923
Bug ID: 77923
Summary: GCC emits "declares nothing" diagnostic on meaningful
declarations.
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: eric at efcs dot ca
Target Milestone: ---
I ran into this error defining a typedef for "struct ::stat" where "stat" names
both a function and type on POSIX systems.
Reduced reproducer:
// g++ -std=c++14 -Werror test.cpp
struct foo {};
void foo() {}
using FooType = struct ::foo; // emits error {{declaration 'struct ::foo' does
not declare anything}}
