On Fri, 11 Feb 2022, at 14:47, Richard Shaw wrote:

On Sat, Feb 5, 2022 at 2:39 PM Richard Shaw <hobbes1069@gmail.com> wrote:

So I'm trying to build a project that does have some nono instances of "using namespace std", however, I have removed them and I STILL get this error.

Is it possible for mingw to conflict with itself?!?!?

In file included from /usr/x86_64-w64-mingw32/sys-root/mingw/include/msxml.h:25,
                 from /usr/x86_64-w64-mingw32/sys-root/mingw/include/urlmon.h:450,
                 from /usr/x86_64-w64-mingw32/sys-root/mingw/include/objbase.h:163,
                 from /usr/x86_64-w64-mingw32/sys-root/mingw/include/ole2.h:17,
                 from /usr/x86_64-w64-mingw32/sys-root/mingw/include/wtypes.h:13,
                 from /usr/x86_64-w64-mingw32/sys-root/mingw/include/winscard.h:10,
                 from /usr/x86_64-w64-mingw32/sys-root/mingw/include/windows.h:97,
                 from /usr/x86_64-w64-mingw32/sys-root/mingw/include/FL/Fl_Window.H:26,
                 from /usr/x86_64-w64-mingw32/sys-root/mingw/include/FL/Fl_Double_Window.H:25,
                 from ./include/lgbook.h:15,
                 from logger/logger.cxx:37:
/usr/x86_64-w64-mingw32/sys-root/mingw/include/oaidl.h:579:5: error: reference to 'byte' is ambiguous
  579 |     byte *pRecord;
      |     ^~~~

I have removed the instance of it in logger.cxx and it does not exist in lgbook.h or in fltk AFAIKT...

What now? From what I can tell (and I'm no C/C++ expert) this problem was introduced in C++17 so perhaps building in C++14 will work around the issue but I can't seem to find a REAL fix.

So no one has seen this? Still looking for a workaround.

I've run into this in the past but it was due to using namespace std;