[Interest] Error: /opt/qt-5.5.0/lib/libQt5*: undefined reference
Thiago Macieira
thiago.macieira at intel.com
Mon Mar 7 18:37:09 CET 2016
Em segunda-feira, 7 de março de 2016, às 21:23:11 PST, Nilesh Kokane escreveu:
> While building application against Qt-5.5.0 throws the following error:
>
> $make
> /opt/qt-5.5.0/lib/libQt5Widgets.so.5: undefined reference to
> `QOpenGLExtensions::flushShared()'
You probably have /usr/lib/libQt5Gui.so.5 (or another default libdir),
correct? It's conflicting.
> $make VERBOSE=1
> /usr/bin/c++ -std=c++0x -fno-exceptions -Wall -Wextra -Wcast-align -
> [..]
> gnu/libKF5CoreAddons.so.5.19.0 /usr/lib/i386-linux-gnu/libQt5Gui.so.5.4.1
> /usr/lib/i386-linux-gnu/libQt5Core.so.5.4.1
> -Wl,-rpath,/home/nilesh/development/kdepimlibs/kdepimlibs/build/akonadi-mime
> /src:/usr/local/lib/i386-linux-gnu:/opt/kf5/lib/i386-linux-gnu:/opt/qt-5.5.0
> /lib
> -Wl,-rpath-link,/usr/local/lib/i386-linux-gnu:/opt/kf5/lib/i386-linux-gnu:/
> opt/qt-5.5.0/lib
The order of the paths in -rpath-link is wrong. You need the one with the most
recent libraries to show up first.
Or you should delete the Qt 5 libraries from /usr/local/lib/i386-linux-gnu
> runtime library [libQt5Widgets.so.5] in /usr/lib/i386-linux-gnu may be
> hidden by files in:/opt/qt-5.5.0/lib
>
> Am I missing something?
You didn't pay attention to the cmake warning. CMake got it backwards, but the
warning was important. You need to fix it.
--
Thiago Macieira - thiago.macieira (AT) intel.com
Software Architect - Intel Open Source Technology Center
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