How to configure Qt to work with MinGW-64?

[nish]

are u using qt sdk or qt library source?
sdk wont work.. use source

[Skywalker]

are u using qt sdk or qt library source?
sdk wont work.. use source

I'm using SDK v2009.03. I'm on Windows - Vista 64. I'm afraid I'm not even sure where to get source Didn't see a link on the download page.

[nish]

http://www.qtcentre.org/forum/f-newb...ode-22248.html

[Skywalker]

http://www.qtcentre.org/forum/f-newb...ode-22248.html

Thanks. I'd actually prefer to use the SDK, though I'd be willing to try just the source. However I actually see that qtenv.bat, "win32-g++" is already the QMAKESPEC. What I'd like is to change it to mingw-w64 (mingw-w64\bin\mingw32-make.exe is the make command on my computer, mingw-w64\bin\x86_64-w64-mingw32-g++.exe and C:\mingw-w64\bin\x86_64-w64-mingw32-gcc.exe are the compilers).

I tried editing qtenv.bat to "set QMAKESPEC=x86_64-w64-mingw32" and "set QMAKESPEC=c:\mingw-w64\bin\x86_64-w64-mingw32" but the programs being compiled were still using the 32 bit compiler.

"configure -platform c:\mingw-w64\bin\x86_64-w64-mingw32-g++" and "configure -platform x86_64-w64-mingw32-g++" both give me "Invalid option "c:\mingw-w64\bin\x86_64-w64-mingw32-g++" for -platform." type errors.

Should I uninstall the SDK and try to run configure again with the source, and/or is there something else I should be using other than x86_64-w64-mingw32?

[Skywalker]

Alternatively, is there a temporary modification I can make to the Makefile to have it build with MinGW-64? I need to be getting some work done

[nish]

try everything you mentioned with source only... the sdk comes precompiled and QtCreator etc are dependent on it.. if you configure it again .. they will break... we have seen a lot of ppl having problems with sdk when they try to change it (for example use it with msvc).
Theotrically SDKs are standalone products and they should not be changed.

so first try win32-g++ with Qt source and make sure that no mingw(32bit) compiler is present on your machine.

[Skywalker]

I uninstalled the SDK and installed 4.5.2. During installation I pointed it to the location of MinGW 64 though it said it couldn't locate g++, I guess because it was looking for the 32 bit filename. Renaming the file might be an option there anyway.

I ran 'configure -platform win32-g++' but I'm getting the same error as with the SDK.

"make (e=2): The system cannot find the file specified.
mingw32-make: *** [project.o] Error 2
Building qmake failed, return code 2"

Also when I try to launch Assistant, Demos, etc. I get the error "mingwm10.dll was not found". I searched in the mingw-w64 folder and there's no such DLL, the only DLLs are libgcc_s_sjlj-1.dll, lissp-0.dll, and libssp.dll.a.

[nish]

I uninstalled the SDK and installed 4.5.2. During installation I pointed it to the location of MinGW 64

are you sure you are using the sources? did you downloaded the 4.5.2 exe file? if yes then download the source here

http://get.qtsoftware.com/qt/source/...-src-4.5.2.zip

[Skywalker]

Whoops you're - I read the wrong post in the thread you directed me to - saw the one about "right column", missed your post with the link.

I actually got the same error as before however. This time it occurred to me to copy 'x86_64-w64-mingw32-g++.exe' to 'g++.exe', and surprisingly that actually seems to have worked in bypassing that particular error. Must have been the problem since the start.

After I uninstalled 4.5.2, I unzipped and ran 'configure -platform win32-g++'. It ran for a while but fails with the error message:

C:\Qt/src/corelib/tools/qdatetime.cpp: In function 'void localToUtc(QDate&, QTim
e&, int)':
C:\Qt/src/corelib/tools/qdatetime.cpp:3768:12: error: '_tzset' was not declared
in this scope
C:\Qt/src/corelib/tools/qdatetime.cpp: In member function 'QString QDateTimePars
er::sectionText(const QString&, int, int) const':
C:\Qt/src/corelib/tools/qdatetime.cpp:4424:10: warning: case label value is less
than minimum value for type
C:\Qt/src/corelib/tools/qdatetime.cpp:4425:10: warning: case label value is less
than minimum value for type
C:\Qt/src/corelib/tools/qdatetime.cpp:4426:10: warning: case label value is less
than minimum value for type
C:\Qt/src/corelib/tools/qdatetime.cpp: In member function 'QString QDateTimePars
er::sectionText(int) const':
C:\Qt/src/corelib/tools/qdatetime.cpp:4438:10: warning: case label value is less
than minimum value for type
C:\Qt/src/corelib/tools/qdatetime.cpp:4439:10: warning: case label value is less
than minimum value for type
C:\Qt/src/corelib/tools/qdatetime.cpp:4440:10: warning: case label value is less
than minimum value for type
mingw32-make: *** [qdatetime.o] Error 1
Building qmake failed, return code 2

[nish]

looks like only Mr. Wysota or Google can help you now.. I dont have 64machine.. cant test myselft sorry

[Skywalker]

OK - thanks for your help

[Skywalker]

I commented out the _tzset() line in qdatetime.cpp to see if that would help, but now I'm getting many new errors, now from qfsfileengine_win.cpp. They seem to be the same as for the person on this post to the mailing list.

C:\Qt\qt/src/corelib/io/qfsfileengine_win.cpp:112:123: warning: 'dllimport' attr
ibute ignored
C:\Qt\qt/src/corelib/io/qfsfileengine_win.cpp:114:162: warning: 'dllimport' attr
ibute ignored
C:\Qt\qt/src/corelib/io/qfsfileengine_win.cpp:122:56: warning: 'dllimport' attri
bute ignored
C:\Qt\qt/src/corelib/io/qfsfileengine_win.cpp: In static member function 'static
void QFSFileEnginePrivate::resolveLibs()':
C:\Qt\qt/src/corelib/io/qfsfileengine_win.cpp:177:99: warning: deprecated conver
sion from string constant to 'WCHAR*'
C:\Qt\qt/src/corelib/io/qfsfileengine_win.cpp:181:98: warning: deprecated conver
sion from string constant to 'WCHAR*'
C:\Qt\qt/src/corelib/io/qfsfileengine_win.cpp:184:101: warning: deprecated conve
rsion from string constant to 'WCHAR*'
C:\Qt\qt/src/corelib/io/qfsfileengine_win.cpp: In member function 'qint64 QFSFil
eEnginePrivate::nativeSize() const':
C:\Qt\qt/src/corelib/io/qfsfileengine_win.cpp:666:50: error: '_get_osfhandle' wa
s not declared in this scope
C:\Qt\qt/src/corelib/io/qfsfileengine_win.cpp: In member function 'int QFSFileEn
ginePrivate::nativeHandle() const':
C:\Qt\qt/src/corelib/io/qfsfileengine_win.cpp:903:33: error: '_fileno' was not d
eclared in this scope
C:\Qt\qt/src/corelib/io/qfsfileengine_win.cpp:913:60: error: '_open_osfhandle' w
as not declared in this scope
C:\Qt\qt/src/corelib/io/qfsfileengine_win.cpp: In member function 'bool QFSFileE
nginePrivate::nativeIsSequential() const':
C:\Qt\qt/src/corelib/io/qfsfileengine_win.cpp:934:57: error: '_fileno' was not d
eclared in this scope
C:\Qt\qt/src/corelib/io/qfsfileengine_win.cpp:934:58: error: '_get_osfhandle' wa
s not declared in this scope
C:\Qt\qt/src/corelib/io/qfsfileengine_win.cpp: In member function 'bool QFSFileE
nginePrivate::doStat() const':
C:\Qt\qt/src/corelib/io/qfsfileengine_win.cpp:1323:50: error: '_get_osfhandle' w
as not declared in this scope
C:\Qt\qt/src/corelib/io/qfsfileengine_win.cpp: In member function 'virtual bool
QFSFileEngine::setPermissions(uint)':
C:\Qt\qt/src/corelib/io/qfsfileengine_win.cpp:1918:4: error: '::_chmod' has not
been declared
C:\Qt\qt/src/corelib/io/qfsfileengine_win.cpp: In member function 'virtual bool
QFSFileEngine::setSize(qint64)':
C:\Qt\qt/src/corelib/io/qfsfileengine_win.cpp:1938:46: error: '_get_osfhandle' w
as not declared in this scope
C:\Qt\qt/src/corelib/io/qfsfileengine_win.cpp: In member function 'virtual QDate
Time QFSFileEngine::fileTime(QAbstractFileEngine::FileT ime) const':
C:\Qt\qt/src/corelib/io/qfsfileengine_win.cpp:2004:49: error: '_get_osfhandle' w
as not declared in this scope
C:\Qt\qt/src/corelib/io/qfsfileengine_win.cpp: In member function 'uchar* QFSFil
eEnginePrivate::map(qint64, qint64, QFile::MemoryMapFlags)':
C:\Qt\qt/src/corelib/io/qfsfileengine_win.cpp:2056:53: error: '_fileno' was not
declared in this scope
C:\Qt\qt/src/corelib/io/qfsfileengine_win.cpp:2056:54: error: '_get_osfhandle' w
as not declared in this scope
mingw32-make: *** [qfsfileengine_win.o] Error 1
Building qmake failed, return code 2