This is just false __attribute__((__gnu_inline__)) Is equal to inline in C++. It won’t cause ODR issues.
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows ________________________________ From: LIU Hao <lh_mo...@126.com> Sent: Wednesday, January 5, 2022 2:02:55 AM To: mingw-w64-public@lists.sourceforge.net <mingw-w64-public@lists.sourceforge.net>; Luca Bacci <luca.bacci...@gmail.com> Subject: Re: [Mingw-w64-public] Informations about the use of mingw-w64 GCC with the Windows SDK headers 在 12/7/21 10:07 PM, Luca Bacci 写道: > In addition to that, have you ever considered using > https://github.com/microsoft/win32metadata to generate mingw win32api > headers? > > Luca > I haven't had a look at it so far. Some random search results on web suggest that its main objective is to ease integration of new APIs into C# or Rust; note this doesn't include C. But I do consider it a great improvement, if someone can figure out how to generate mingw-w64-compatible headers with it. > Il giorno lun 29 nov 2021 alle ore 13:59 Luca Bacci <luca.bacci...@gmail.com> > ha scritto: > >> Hello, >> >> I'd like to know if anyone has ever attempted to use the Windows SDK >> headers with mingw-w64 GCC instead of the re-engineered win32api headers, >> how many incompatibilities are there and if those incompatibilities are >> surmountable. >> >> It would be great to have support for the Windows SDK headers! >> >> It would hardly be possible to use MS headers verbatim: 1) The `long` type is defined as 4 bytes in MS headers (note this also applies to literals such as `42L`), but in mingw-w64 headers it's variable. We have `__MSABI_LONG` which, when building native applications expands to a `long`, but for Cygwin or MSYS2 where `long` is 8 bytes expands to an `int`. 2) GCC does not allow nameless `struct` or `union` members to contain another `struct`. They have to be moved outside. 3) MSVC `__inline` in C behaves like `inline` in C++, while there is no exact equivalent in GCC. Failure to inline such functions (such as compiling with `-O0`) would cause undefined references. The closest and safest thing (to allow such code to build) is `static __inline` I think. 4) `BOOL` is an alias for `bool` in Objective-C so we have to take `WINBOOL` for `BOOL` in MS headers. This list is not exhaustive. It is no simple matter. -- Best regards, LIU Hao _______________________________________________ Mingw-w64-public mailing list Mingw-w64-public@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mingw-w64-public
