[Bug c++/120824] [modules] Cannot export unnamed enum declared in GMF

[m.cencora at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120824

--- Comment #1 from m.cencora at gmail dot com ---
Exporting it as aliased type makes the module compile, but importers still
cannot see it:
$ cat posix.mod.cpp
module;

#include "sock_domain.h"

export module posix;

export
{
//using ::AF_INET;
using SOCK_PROTOS = decltype(::AF_INET);
}

$ g++ -fmodules posix.mod.cpp use.cpp 
use.cpp: In function ‘int main()’:
use.cpp:5:5: error: ‘AF_INET’ was not declared in this scope
    5 |     AF_INET;
      |     ^~~~~~~
use.cpp:6:5: error: ‘AF_UNIX’ was not declared in this scope
    6 |     AF_UNIX;
      |     ^~~~~~~