Undefined symbols for architecture i386 [solved]

Hedge

I've got an old Mac Book Pro running 32 Bit MacOS and want to compile Jens' "desktop-components":http://labs.qt.nokia.com/2011/03/10/qml-components-for-desktop/ with it. Sadly everytime I try to I get the following error:

@Undefined symbols for architecture i386:
"StylePlugin::registerTypes(char const*)", referenced from:
vtable for StylePluginin moc_qstyleplugin.o
"StylePlugin::initializeEngine(QDeclarativeEngine*, char const*)", referenced from:
vtable for StylePluginin moc_qstyleplugin.o
"non-virtual thunk to StylePlugin::registerTypes(char const*)", referenced from:
vtable for StylePluginin moc_qstyleplugin.o
"non-virtual thunk to StylePlugin::initializeEngine(QDeclarativeEngine*, char const*)", referenced from:
vtable for StylePluginin moc_qstyleplugin.o
ld: symbol(s) not found for architecture i386
collect2: ld returned 1 exit status@

What can I do about this? This is the only Mac I possess.

goetz

The object files are missing the 32 bit intel part of a universal binary. You can resolve this by adding this to components/styleitem/styleitem.pro:

@
macx:CONFIG += x86
@

Depending on what architectures you compile for, you might want to add one or more of this too:

@
macx:CONFIG += x86_64 # 64 bit intel
macx:CONFIG += ppc # 32 bit PPC
macx:CONFIG += ppc64 # 64 bit PPC

#or combined in one line:
macx:CONFIG += x86_64 ppc ppc64
@

If you want to exclude one/more of those architectures, replace "+=" by "-=".

Hedge

Ok I added macx:CONFIG += x86 to styleitem.pro but the error is still the same.

btw. Thanks for all your help Volker. I'll include you in the credits once I get this to fly.

goetz

You should do this combo:

@
make clean
qmake
make
make install # if needed
@

The makefiles do not catch up the change to the .pro and thus the libs are not rebuilt.

Hedge

I did it and keep getting the same error while doing make.
styleitem is a nested project.
Do I have to add the macx:CONFIG += x86 line to the overlaying projects perhaps.

goetz

It shouldn't harm. I had no problems compiling the plugins for my Qt libs. So this seems to be some weird combo of issues.

Can you give some more details on your environment:

Qt version?
SDK or prebuilt binary framework or manually compiled libs?
Carbon or Cocoa?
output of "qmake -query"
output of "file /path/to/your/qt/libs-or-framworks/QtCore.framework/Versions/Current/QtCore (it shows you the architectures Qt is built for)
output of the compiler run (calling make), at least a snippet, to analyze the actual compiler calls

Hedge

Qt version 4.7.3, manually compiled (there are no precompiled libs for Mac 32).

I don't know how to determine whether Carbon or Cocoa is used.

Output of qmake -query

@QT_INSTALL_PREFIX:/usr/local/Trolltech/Qt-4.7.3
QT_INSTALL_DATA:/usr/local/Trolltech/Qt-4.7.3
QT_INSTALL_DOCS:/usr/local/Trolltech/Qt-4.7.3/doc
QT_INSTALL_HEADERS:/usr/local/Trolltech/Qt-4.7.3/include
QT_INSTALL_LIBS:/usr/local/Trolltech/Qt-4.7.3/lib
QT_INSTALL_BINS:/usr/local/Trolltech/Qt-4.7.3/bin
QT_INSTALL_PLUGINS:/usr/local/Trolltech/Qt-4.7.3/plugins
QT_INSTALL_IMPORTS:/usr/local/Trolltech/Qt-4.7.3/imports
QT_INSTALL_TRANSLATIONS:/usr/local/Trolltech/Qt-4.7.3/translations
QT_INSTALL_CONFIGURATION:/Library/Preferences/Qt
QT_INSTALL_EXAMPLES:/usr/local/Trolltech/Qt-4.7.3/examples
QT_INSTALL_DEMOS:/usr/local/Trolltech/Qt-4.7.3/demos
QMAKE_MKSPECS:/usr/local/Trolltech/Qt-4.7.3/mkspecs
QMAKE_VERSION:2.01a
QT_VERSION:4.7.3
@

Output of file QtCore:

@file QtCore
QtCore: Mach-O dynamically linked shared library i386
@

Output of make:

@
cd components/ && make -f Makefile
cd styleitem/ && make -f Makefile
rm -f libstyleplugin.dylib
g++ -headerpad_max_install_names -arch i386 -single_module -dynamiclib -o libstyleplugin.dylib tmp/qrangemodel.o tmp/qstyleplugin.o tmp/qdeclarativefolderlistmodel.o tmp/qstyleitem.o tmp/moc_qrangemodel.o tmp/moc_qstyleplugin.o tmp/moc_qdeclarativefolderlistmodel.o tmp/moc_qstyleitem.o -F/usr/local/Trolltech/Qt-4.7.3/lib -L/usr/local/Trolltech/Qt-4.7.3/lib -framework QtDeclarative -L/usr/local/Trolltech/Qt-4.7.3/lib -F/usr/local/Trolltech/Qt-4.7.3/lib -framework QtScript -framework QtCore -framework QtSvg -framework QtGui -framework QtSql -framework QtXmlPatterns -framework QtNetwork
Undefined symbols for architecture i386:
"StylePlugin::registerTypes(char const*)", referenced from:
vtable for StylePluginin moc_qstyleplugin.o
"StylePlugin::initializeEngine(QDeclarativeEngine*, char const*)", referenced from:
vtable for StylePluginin moc_qstyleplugin.o
"non-virtual thunk to StylePlugin::registerTypes(char const*)", referenced from:
vtable for StylePluginin moc_qstyleplugin.o
"non-virtual thunk to StylePlugin::initializeEngine(QDeclarativeEngine*, char const*)", referenced from:
vtable for StylePluginin moc_qstyleplugin.o
ld: symbol(s) not found for architecture i386
collect2: ld returned 1 exit status
make[2]: *** [../plugin/libstyleplugin.dylib] Error 1
make[1]: *** [sub-styleitem-make_default] Error 2
make: *** [sub-components-make_default] Error 2
@

Hedge

Now I've got the same shit with a 64 bit Mac but with the error-message:

@symbol(s) not found for architecture x86_64@

This is the compile output:

@Undefined symbols for architecture x86_64:
"StylePlugin::registerTypes(char const*)", referenced from:
vtable for StylePluginin moc_qstyleplugin.o
"StylePlugin::initializeEngine(QDeclarativeEngine*, char const*)", referenced from:
vtable for StylePluginin moc_qstyleplugin.o
"non-virtual thunk to StylePlugin::registerTypes(char const*)", referenced from:
vtable for StylePluginin moc_qstyleplugin.o
"non-virtual thunk to StylePlugin::initializeEngine(QDeclarativeEngine*, char const*)", referenced from:
vtable for StylePluginin moc_qstyleplugin.o
ld: symbol(s) not found for architecture x86_64@

I added macx:CONFIG += x86_64 to the pro-file but that didn't change anything.

EDIT: I finally found the reason why building the desktop components failed. For some reason two files of the desktop components were changed (I found out via a simple git status). Now it compiles fine on both Macs.

goetz

[quote author="Hedge" date="1305379186"]
EDIT: I finally found the reason why building the desktop components failed. For some reason two files of the desktop components were changed (I found out via a simple git status). Now it compiles fine on both Macs.[/quote]

Ah! Good to know. Could be I cloned the already corrected version from gitorious. Usually Mac environments are not that different :-)

Good luck with your further development!

? This user is from outside of this forum

I have the same problem, the version of my Mac is 10.7, and when I compile the same message appears, have tried everything. Do you know any solution?!

Tks,

Tokunaga.

? This user is from outside of this forum

I decided that....

TKS,

Tokunaga

goetz

If you already tried everything, chances are bad that there are a solution. If you didn't..... it would be helpful if you told us what you've done.

? This user is from outside of this forum

Why Wolker??? Do u have a problem???

goetz

[quote author="Tokunaga" date="1320012719"]Why Wolker??? Do u have a problem???[/quote]

Me? No. I think it's you having a problem. At least that's what you stated previously:

[quote author="Tokunaga" date="1319961219"]I have the same problem[/quote]

But it's hard to know what you did decide, though:

[quote author="Tokunaga" date="1319987713"]I decided that....

TKS,

Tokunaga[/quote]

Can you elaborate a bit more precisely?

? This user is from outside of this forum

Volker

somebody could solve this?
well, if you use a qt 4.7.4 on a Mac 32-bit it really appears, I checked other tutorials and talk to compile gcc libraries.
You know what really needs to be done? anyone have any solution?

? This user is from outside of this forum

Do you have msn or something??
my email hxcx_dod@hotmail.com