[Interest] Link error while building Qt/32 on Linux 64 bits

[Christian Gagneraud]

On 27 August 2017 at 16:08, Thiago Macieira <thiago.macieira at intel.com> wrote:
> On Saturday, 26 August 2017 18:25:16 PDT Christian Gagneraud wrote:
>> /usr/bin/ld.gold: warning: skipping incompatible
>> //usr/lib/x86_64-linux-gnu/libSM.so while searching for SM
>> /usr/bin/ld.gold: error: cannot find -lSM
>> /usr/bin/ld.gold: warning: skipping incompatible
>> //usr/lib/x86_64-linux-gnu/libICE.so while searching for ICE
>> /usr/bin/ld.gold: error: cannot find -lICE
>> .obj/qxcbsessionmanager.o:qxcbsessionmanager.cpp:function
>> QXcbSessionManager::~QXcbSessionManager(): error: undefined reference
>> to 'SmcCloseConnection'
>
> The undefined reference is caused by the libraries listed right before it not
> being found.

Not sure to get what you mean.

Given this:
-lxcb-xinerama -L/home/krys/Projects/qt5/qtbase/lib
-lQt5ServiceSupport -lQt5ThemeSupport -lQt5EventDispatcherSupport
-lQt5FontDatabaseSupport -lfontconfig -lfreetype
-lQt5LinuxAccessibilitySupport -lQt5AccessibilitySupport -lGL -lQt5Gui
-lQt5DBus -lQt5Core -lpthread -lX11 -lX11-xcb -lXi -lSM -lICE
-lxcb-xkb -lxcb-render-util -lxcb-render -lxcb -lxcb-shm -lxcb-sync
-lxcb-xfixes -lxcb-randr -lxcb-image -lxcb-keysyms -lxcb-icccm
-lxcb-shape -lGL

Should I focus at the libs on the right or on the left of "-lSM -lICE"?
My understanding of ld tells me to look on the right (reverse dependency order).

I think I have installed all these libraries. The only weird thing i
can see comes from my libGL:
krys at krys-pc:~/Projects/qt5$ ldconfig -p | grep libGL.so
        libGL.so.1 (libc6,x86-64) => /usr/lib/nvidia-375/libGL.so.1
        libGL.so.1 (libc6) => /usr/lib32/nvidia-375/libGL.so.1
        libGL.so (libc6,x86-64) => /usr/lib/x86_64-linux-gnu/libGL.so
        libGL.so (libc6,x86-64) => /usr/lib/nvidia-375/libGL.so
        libGL.so (libc6) => /usr/lib/i386-linux-gnu/libGL.so
        libGL.so (libc6) => /usr/lib32/nvidia-375/libGL.so

And apt-get always complaining with:
/sbin/ldconfig.real: /usr/lib/nvidia-375/libEGL.so.1 is not a symbolic link
/sbin/ldconfig.real: /usr/lib32/nvidia-375/libEGL.so.1 is not a symbolic link

krys at krys-pc:~/git-auklug/project/tmp$ ls -l /usr/lib*/*/libGL.*
/usr/lib*/*/mesa/libGL.*
-rw-r--r-- 1 root root    652 May  2 11:41 /usr/lib32/nvidia-375/libGL.la
lrwxrwxrwx 1 root root     10 May  6 01:13
/usr/lib32/nvidia-375/libGL.so -> libGL.so.1
lrwxrwxrwx 1 root root     14 May  6 01:13
/usr/lib32/nvidia-375/libGL.so.1 -> libGL.so.1.0.0
-rw-r--r-- 1 root root 528708 May  2 10:06 /usr/lib32/nvidia-375/libGL.so.1.0.0
lrwxrwxrwx 1 root root     13 Jun  8 19:54
/usr/lib/i386-linux-gnu/libGL.so -> mesa/libGL.so
lrwxrwxrwx 1 root root     14 Jun  8 19:54
/usr/lib/i386-linux-gnu/mesa/libGL.so -> libGL.so.1.2.0
lrwxrwxrwx 1 root root     14 Jun  8 19:54
/usr/lib/i386-linux-gnu/mesa/libGL.so.1 -> libGL.so.1.2.0
-rw-r--r-- 1 root root 457224 Jun  8 19:54
/usr/lib/i386-linux-gnu/mesa/libGL.so.1.2.0
lrwxrwxrwx 1 root root     10 May  6 01:13
/usr/lib/nvidia-375/libGL.so -> libGL.so.1
lrwxrwxrwx 1 root root     14 May  6 01:13
/usr/lib/nvidia-375/libGL.so.1 -> libGL.so.1.0.0
-rw-r--r-- 1 root root 665712 May  2 09:26 /usr/lib/nvidia-375/libGL.so.1.0.0
lrwxrwxrwx 1 root root     13 Jun  8 19:54
/usr/lib/x86_64-linux-gnu/libGL.so -> mesa/libGL.so
lrwxrwxrwx 1 root root     14 Jun  8 19:54
/usr/lib/x86_64-linux-gnu/mesa/libGL.so -> libGL.so.1.2.0
lrwxrwxrwx 1 root root     14 Jun  8 19:54
/usr/lib/x86_64-linux-gnu/mesa/libGL.so.1 -> libGL.so.1.2.0
-rw-r--r-- 1 root root 463424 Jun  8 19:54
/usr/lib/x86_64-linux-gnu/mesa/libGL.so.1.2.0


Chris


>   Software Architect - Intel Open Source Technology Center
>
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