[Octave-bug-tracker] [bug #40252] Make GUI compatible with both Qt4 and Qt5

[John W. Eaton]

Follow-up Comment #27, bug #40252 (project octave):

I'm not seeing the problem with mixed library versions.  I see this:


coredump:222> ldd src/.libs/octave-gui | grep Qt
        libQt5Network.so.5 => /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
(0x00007f6859af2000)
        libQt5OpenGL.so.5 => /usr/lib/x86_64-linux-gnu/libQt5OpenGL.so.5
(0x00007f6859a97000)
        libQt5PrintSupport.so.5 => 
/usr/lib/x86_64-linux-gnu/libQt5PrintSupport.so.5
(0x00007f6859a24000)
        libQt5Widgets.so.5 => /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
(0x00007f68593a0000)
        libQt5Gui.so.5 => /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
(0x00007f6858e14000)
        libQt5Core.so.5 => /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
(0x00007f6858942000)


If you delete the src/octave-gui file, what does "make V=1" tell you about
linking with -lQt* libraries?  Likewise for the liboctgui library link step.

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