Need assistance to fix LuxRender issue

[Luya Tshimbalanga]

Hello team,

After investigating the bug [1] on LuxRender failing to start,
upstream[2] suggested a problem with qt4 configuration. Normally using
luxrender should start but traceback with libQt5Core.so which shouldn't
be used.

Here is the summary

 luxrender 
*** Error in `luxrender': realloc(): invalid pointer: 0x00007f0852b140c0 ***
======= Backtrace: =========
/lib64/libc.so.6(+0x791fb)[0x7f084c5651fb]
/lib64/libc.so.6(realloc+0x3b0)[0x7f084c572840]
/lib64/libQt5Core.so.5(_ZN9QListData12realloc_growEi+0x31)[0x7f083f380c51]
/lib64/libQt5Core.so.5(_ZN9QListData6appendEi+0x4f)[0x7f083f380cef]
/lib64/libQt5Core.so.5(+0x1b32c0)[0x7f083f4382c0]
/lib64/libQt5Core.so.5(_Z21qRegisterResourceDataiPKhS0_S0_+0x275)[0x7f083f4340d5]
/lib64/libQt5Core.so.5(+0x7ecd3)[0x7f083f303cd3]
/lib64/ld-linux-x86-64.so.2(+0x10a3a)[0x7f0854c63a3a]
/lib64/ld-linux-x86-64.so.2(+0x10b4b)[0x7f0854c63b4b]
/lib64/ld-linux-x86-64.so.2(+0xd0a)[0x7f0854c53d0a]


When typing ldd /usr/bin/luxrender

$ ldd /usr/bin/luxrender
    linux-vdso.so.1 (0x00007ffcd35a9000)
    liblux.so => /lib64/liblux.so (0x00007f9828277000)
    libQtGui.so.4 => /lib64/libQtGui.so.4 (0x00007f982754f000)
    libQtCore.so.4 => /lib64/libQtCore.so.4 (0x00007f9827047000)
    libembree.so.2 => /lib64/libembree.so.2 (0x00007f98261b7000)
    libOpenCL.so.1 => /lib64/libOpenCL.so.1 (0x00007f9825f97000)
    libGLU.so.1 => /lib64/libGLU.so.1 (0x00007f9825d27000)
    libGL.so.1 => /lib64/libGL.so.1 (0x00007f9825aaf000)
    libOpenImageIO.so.1.6 => /lib64/libOpenImageIO.so.1.6
(0x00007f9825057000)

I don't knwo what exactly cause the issue because that level is beyond
my skills. Thanks for the help.


Reference
--------------

[1] https://bugzilla.redhat.com/show_bug.cgi?id=1412089
[2] http://www.luxrender.net/forum/viewtopic.php?f=21&t=13248&p=125654


-- 
Luya Tshimbalanga
Graphic & Web Designer
E: luya(a)fedoraproject.org
W: http://www.coolest-storm.net