[ruby-core:117827] [Ruby master Bug#20480] Complie failure for unable to configure NET_LUID using msys2 mingw64-gcc

["nobu (Nobuyoshi Nakada) via ruby-core" <ruby-core@ml.ruby-lang.org>]

Issue #20480 has been updated by nobu (Nobuyoshi Nakada).


Could you share `AC_CHECK_TYPE([NET_LUID], ...)` part in your config.log?

----------------------------------------
Bug #20480: Complie failure for unable to configure NET_LUID using msys2 mingw64-gcc
https://bugs.ruby-lang.org/issues/20480#change-108235

* Author: nekoyama32767 (Jinsong Yu)
* Status: Open
* ruby -v: ruby 3.4.0dev (2024-05-10T04:54:31Z master 2f915e729a) [x64-mingw32]
* Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN
----------------------------------------
Master commit:`2f915e729ac8c66f4009f4b28a57773923d7e7d1`
NET_LUID is not successfully checked in win32 configure.

When try to compile in msys2 mingw64-gcc there will be a error message like follow.
```
win32/win32.c:4365:7: error: conflicting types for 'NET_LUID'; have 'struct <anonymous>'
 4365 |     } NET_LUID;
      |       ^~~~~~~~
In file included from D:/msys64/mingw64/include/iptypes.h:17,
                 from D:/msys64/mingw64/include/iphlpapi.h:17,
                 from ./include/ruby/win32.h:40,
                 from ./include/ruby/internal/dosish.h:38,
                 from ./include/ruby/defines.h:78,
                 from ./include/ruby/ruby.h:25,
                 from win32/win32.c:24:
D:/msys64/mingw64/include/ifdef.h:106:3: note: previous declaration of 'NET_LUID' with type 'NET_LUID'
  106 | } NET_LUID, *PNET_LUID;
      |   ^~~~~~~~
```
Mingw64-gcc has NET_LUID, when comment out line 4357-line 4367 in `win32/win32.c` in follow, compile will be successed.
```
#ifndef HAVE_TYPE_NET_LUID
    typedef struct {
        uint64_t Value;
        struct {
            uint64_t Reserved :24;
            uint64_t NetLuidIndex :24;
            uint64_t IfType :16;
        } Info;
    } NET_LUID;
#endif
```
mingw64-gcc version
```
gcc --version

gcc.exe (Rev4, Built by MSYS2 project) 13.2.0
Copyright (C) 2023 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
```




-- 
https://bugs.ruby-lang.org/
 ______________________________________________
 ruby-core mailing list -- ruby-core@ml.ruby-lang.org
 To unsubscribe send an email to ruby-core-leave@ml.ruby-lang.org
 ruby-core info -- https://ml.ruby-lang.org/mailman3/postorius/lists/ruby-core.ml.ruby-lang.org/