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Error compiling QT

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DMLP
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Registration Date: 23.03.2008
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Error compiling QT

Hey,

I'm compiling Qt in WinXP SP2. But I get the same error over and over again.
I did it in school, but at home it won't work :s. On both computers are MSVS2005 installed.
For Qt I use MinGW for compiling and Eclipse for writing.

this is the error I get:

Creating library file: c:\Qt\4.3.4\lib\libQtCored4.a
./tmp\obj\debug_shared\qfsfileengine_win.o(.text+0x836c): In function `Z8readLinkRK7QString':
C:/Qt/4.3.4/src/corelib/io/qfsfileengine_win.cpp:1333: undefined reference to `CoCreateInstance@20'
./tmp\obj\debug_shared\qfsfileengine_win.o(.text+0x838b):C:/Qt/4.3.4/src/co
relib/io/qfsfileengine_wi
n.cpp:1333: undefined reference to `CoInitialize@4'
./tmp\obj\debug_shared\qfsfileengine_win.o(.text+0x83b9):C:/Qt/4.3.4/src/co
relib/io/qfsfileengine_wi
n.cpp:1333: undefined reference to `CoCreateInstance@20'
./tmp\obj\debug_shared\qfsfileengine_win.o(.text+0x83e0):C:/Qt/4.3.4/src/co
relib/io/qfsfileengine_wi
n.cpp:1333: undefined reference to `IID_IPersistFile'
./tmp\obj\debug_shared\qfsfileengine_win.o(.text+0x8574):C:/Qt/4.3.4/src/co
relib/io/qfsfileengine_wi
n.cpp:1333: undefined reference to `CoUninitialize@0'
./tmp\obj\debug_shared\qfsfileengine_win.o(.text+0x85b5):C:/Qt/4.3.4/src/co
relib/io/qfsfileengine_wi
n.cpp:1333: undefined reference to `CoCreateInstance@20'
./tmp\obj\debug_shared\qfsfileengine_win.o(.text+0x85d4):C:/Qt/4.3.4/src/co
relib/io/qfsfileengine_wi
n.cpp:1333: undefined reference to `CoInitialize@4'
./tmp\obj\debug_shared\qfsfileengine_win.o(.text+0x8605):C:/Qt/4.3.4/src/co
relib/io/qfsfileengine_wi
n.cpp:1333: undefined reference to `CoCreateInstance@20'
./tmp\obj\debug_shared\qfsfileengine_win.o(.text+0x862c):C:/Qt/4.3.4/src/co
relib/io/qfsfileengine_wi
n.cpp:1333: undefined reference to `IID_IPersistFile'
./tmp\obj\debug_shared\qfsfileengine_win.o(.text+0x88fc):C:/Qt/4.3.4/src/co
relib/io/qfsfileengine_wi
n.cpp:1333: undefined reference to `CoUninitialize@0'
./tmp\obj\debug_shared\qfsfileengine_win.o(.text+0x8a33): In function `ZN13QFSFileEngine4linkERK7QSt
ring':
C:/Qt/4.3.4/src/corelib/io/qfsfileengine_win.cpp:1427: undefined reference to `CoCreateInstance@20'
./tmp\obj\debug_shared\qfsfileengine_win.o(.text+0x8a52):C:/Qt/4.3.4/src/co
relib/io/qfsfileengine_wi
n.cpp:1427: undefined reference to `CoInitialize@4'
./tmp\obj\debug_shared\qfsfileengine_win.o(.text+0x8a80):C:/Qt/4.3.4/src/co
relib/io/qfsfileengine_wi
n.cpp:1427: undefined reference to `CoCreateInstance@20'
./tmp\obj\debug_shared\qfsfileengine_win.o(.text+0x8cdc):C:/Qt/4.3.4/src/co
relib/io/qfsfileengine_wi
n.cpp:1427: undefined reference to `IID_IPersistFile'
./tmp\obj\debug_shared\qfsfileengine_win.o(.text+0x8d84):C:/Qt/4.3.4/src/co
relib/io/qfsfileengine_wi
n.cpp:1427: undefined reference to `CoUninitialize@0'
./tmp\obj\debug_shared\qfsfileengine_win.o(.text+0x8e57):C:/Qt/4.3.4/src/co
relib/io/qfsfileengine_wi
n.cpp:1427: undefined reference to `CoCreateInstance@20'
./tmp\obj\debug_shared\qfsfileengine_win.o(.text+0x8e76):C:/Qt/4.3.4/src/co
relib/io/qfsfileengine_wi
n.cpp:1427: undefined reference to `CoInitialize@4'
./tmp\obj\debug_shared\qfsfileengine_win.o(.text+0x8ea4):C:/Qt/4.3.4/src/co
relib/io/qfsfileengine_wi
n.cpp:1427: undefined reference to `CoCreateInstance@20'
./tmp\obj\debug_shared\qfsfileengine_win.o(.text+0x9426):C:/Qt/4.3.4/src/co
relib/io/qfsfileengine_wi
n.cpp:1427: undefined reference to `IID_IPersistFile'
./tmp\obj\debug_shared\qfsfileengine_win.o(.text+0x96e7):C:/Qt/4.3.4/src/co
relib/io/qfsfileengine_wi
n.cpp:1427: undefined reference to `CoUninitialize@0'
./tmp\obj\debug_shared\quuid.o(.text+0x229b): In function `ZN5QUuid10createUuidEv':
C:/Qt/4.3.4/src/corelib/plugin/quuid.cpp:416: undefined reference to `CoCreateGuid@4'
./tmp\obj\debug_shared\qeventdispatcher_win.o(.text+0x2776): In function `ZN28QEventDispatcherWin32P
rivate16doWsaAsyncSelectEi':
C:/Qt/4.3.4/src/corelib/kernel/qeventdispatcher_win.cpp:395: undefined reference to `WSAAsyncSelect@
16'
collect2: ld returned 1 exit status
mingw32-make[2]: *** [..\..\lib\QtCored4.dll] Error 1
mingw32-make[2]: Leaving directory `C:/Qt/4.3.4/src/corelib'
mingw32-make[1]: *** [debug-all] Error 2
mingw32-make[1]: Leaving directory `C:/Qt/4.3.4/src/corelib'
mingw32-make: *** [sub-corelib-make_default-ordered] Error 2

can someone help me.

I've looked at the paths and libs, but there is nog sh.exe or other kinds of common problems found :s.

Thanks

This post has been edited 1 time(s), it was last edited by DMLP: 25.03.2008 22:55.

23.03.2008 22:38

michaelM michaelM is a male

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RE: Error compiling QT

Hello,
I am fighting exactly the same problem. Checked all path settings etc.
Does anybody know the solution?

Need some help. Thanks

24.04.2008 15:00

macabre13 macabre13 is a male

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Hi, please check that you have all PATHs and SETs properly set, or simply run >>>x:\qt\qtx.x.x\bin\qtvars.bat<<< and try to compile again.

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25.04.2008 08:35

itachi86 itachi86 is a male

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Yeah I agree with macabre13.

Yuo have to check $PATH , $QTDIR and $QMAKESPEC variables ...

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25.04.2008 08:52

YIM Account Name of itachi86: informatiquei2rv@yahoo.fr

michaelM michaelM is a male

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Hi guys, thanks for the advise.
Unfortunately that's not it. I had set PATH, QTDIR and QMAKESPEC correctly.

The problem seems to be that missing functions like 'CoCreateInstance' and the others (see error message) are not found. These special functions are supposedly embedded in the windows lib ole32.dll. There is a '-lole32' in the Makefile.Release and no complaint from make that this is not found.

On the other hand there is a libole32.a in the C:\mingw\lib folder.

Since I didn't dig deep into qmake etc. I don't know what to change and where where in order to direct the system to look for the c:\mingw\lib\libole32.a instead of the ole32.dll in the windows\system32 (or vice versa).

In the old days I would have just changed the makefile by hand, but these days everything is cryptically entangled. In fact there are many Makefiles, practically in every subfolder. There must be a general way to set links somewhere.

Maybe you guy's know what to do.

Thanks in advance.

25.04.2008 12:21

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