I built and installed tde-systemsettings. I can't get the app to run and thus can't validate whether the likely patche set I created is needed. Hopefully the package is not distro-specific and can be installed on Slackware.
Here is a backtrace of systemsettings, when run from the mini cli, built and installed as-is:
[Thread debugging using libthread_db enabled]
[KCrash handler]
#5 0x0805be69 in TQValueList<RowIconView*>::detach (this=0x8c)
at /opt/trinity/include/ntqvaluelist.h:566
#6 0x0805c0b2 in TQValueList<RowIconView*>::operator[] (this=0x8c, i=0)
at /opt/trinity/include/ntqvaluelist.h:540
#7 0x0805b763 in KcmSearch (this=0x80f8b00, moduleViewList=0x80ecbfc,
parent=0x80f86b0, name=0x8065509 "search") at kcmsearch.cpp:31
#8 0x08061610 in MainWindow::buildActions (this=0x80ecb28)
at mainwindow.cpp:129
#9 0x0806271d in MainWindow (this=0x80ecb28, embed=true, menuFile=...,
parent=0x0, name=0x0, __in_chrg=<value optimized out>,
__vtt_parm=<value optimized out>) at mainwindow.cpp:65
#10 0x080601e5 in main (argc=7, argv=0xbfc48114) at main.cpp:56
Here is a backtrace of systemsettings, when run from the mini cli, built and installed after patching with potential XDG patching (same backtrace, which indicates the lack of patching is not the likely cause):
[Thread debugging using libthread_db enabled]
[KCrash handler]
#5 0x0805be69 in TQValueList<RowIconView*>::detach (this=0x8c)
at /opt/trinity/include/ntqvaluelist.h:566
#6 0x0805c0b2 in TQValueList<RowIconView*>::operator[] (this=0x8c, i=0)
at /opt/trinity/include/ntqvaluelist.h:540
#7 0x0805b763 in KcmSearch (this=0x80f8bd8, moduleViewList=0x80ed07c,
parent=0x80f8788, name=0x8065509 "search") at kcmsearch.cpp:31
#8 0x08061610 in MainWindow::buildActions (this=0x80ecfa8)
at mainwindow.cpp:129
#9 0x0806271d in MainWindow (this=0x80ecfa8, embed=true, menuFile=...,
parent=0x0, name=0x0, __in_chrg=<value optimized out>,
__vtt_parm=<value optimized out>) at mainwindow.cpp:65
#10 0x080601e5 in main (argc=7, argv=0xbff685f4) at main.cpp:56
Darrell