just to report that I've just tried okular and seems to work fine on slackware64-current/14.2.
the only thing of the package that links (indirectly) to libpoppler is /usr/lib64/kde4/okularGenerator_poppler.so: this last links to /usr/lib64/libpoppler-qt4.so.4 (part of the poppler package) that, in turn, links to /usr/lib64/libpoppler.so.62.
you can use objdump in your system to find what's wrong
Code:
$ objdump -x /usr/lib64/kde4/okularGenerator_poppler.so | grep NEEDED
NEEDED libpoppler-qt4.so.4
NEEDED libokularcore.so.5
NEEDED libQtXml.so.4
NEEDED libz.so.1
NEEDED libkdeui.so.5
NEEDED libQtGui.so.4
NEEDED libQtSvg.so.4
NEEDED libkdecore.so.5
NEEDED libQtDBus.so.4
NEEDED libQtCore.so.4
NEEDED libpthread.so.0
NEEDED libstdc++.so.6
NEEDED libm.so.6
NEEDED libc.so.6
NEEDED libgcc_s.so.1
$ objdump -x /usr/lib64/libpoppler-qt4.so.4 | grep NEEDED
NEEDED libpoppler.so.62
NEEDED libQtGui.so.4
NEEDED libQtXml.so.4
NEEDED libQtCore.so.4
NEEDED libz.so.1
NEEDED libstdc++.so.6
NEEDED libm.so.6
NEEDED libc.so.6
NEEDED libgcc_s.so.1
