Build error when building Qt 4.8.1 for VS2005
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Hi all,
I am getting the following errors when building Qt 4.8.1 for VS2005.My guess is that that there is some issue including stdio.h. Any help would be appreciated.
Thanks.
Error 19 error C3861: '_fileno': identifier not found c:\Dev\Builds\Qt\qt-everywhere-opensource-src-4.8.1\src\corelib\io\qfsfileengine_win.cpp 443
Error 20 error C3861: '_fileno': identifier not found c:\Dev\Builds\Qt\qt-everywhere-opensource-src-4.8.1\src\corelib\io\qfsfileengine_win.cpp 468
Error 21 error C3861: '_fileno': identifier not found c:\Dev\Builds\Qt\qt-everywhere-opensource-src-4.8.1\src\corelib\io\qfsfileengine_win.cpp 607
Error 22 error C3861: '_fileno': identifier not found c:\Dev\Builds\Qt\qt-everywhere-opensource-src-4.8.1\src\corelib\io\qfsfileengine_win.cpp 852
Error 23 error C3861: '_fileno': identifier not found c:\Dev\Builds\Qt\qt-everywhere-opensource-src-4.8.1\src\corelib\io\qfsfileengine_win.cpp 914
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My guest is that you are looking for, in the wrong place. Go in "projects" and make sure that is not your problem!
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I don't understand what you mean. I am trying to build the projects solution and it is failing to build QtCore with the errors above.
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Hmm, tried to post this once already and it got lost.
I noticed that in stdio.h it has:
@#ifdef POSIX
_CRTIMP __checkReturn int __cdecl fileno(__in FILE * _File);
#else
_CRTIMP __checkReturn int __cdecl _fileno(__in FILE * _File);
#endif@Noticing this, I changed qplatformdefs.h to define QT_FILENO as fileno instead of _fileno:
@#define QT_FILENO fileno@This seemed to enable me to compile, but makes me nervous.
Is there somewhere in the configure process that I am supposed to do something which doesn't define _POSIX _ (ignore the extra space)?
Thanks.
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It seems that the issue is that qfilesystemengine_win.cpp and qfsfileengine_win.cpp are both calling @#define POSIX@
Why are they doing this? It seems wrong to me.
Thanks.
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The first line of qfsfileengine_win.cpp is
@
#define POSIX
@I don't know why it is there, and why it works in most cases.
--
Debao
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It seems that it works in most cases because qt is by default compiled using precompiled headers, and qt_pch.h calls @#undef POSIX@ which avoids the problem. We were compiling without the precompiled_headers flag, which was exposing the problem.
I think that the @#define POSIX@ is incorrect and needs to be removed from those 2 files.
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Seems OK, I will try to commit a patch for Qt5. When it get merged, we can commit another patch for Qt4.8.
;-)
