簡單來說就是編完 KDE4 之後如果想編 KOffice 的話就會遇上，
錯誤訊息大概會長這樣：
[ 44%] Building CXX object
filters/kspread/latex/export/CMakeFiles/kspreadlatexexport.dir/cell.o
In file included from /usr/ports/editors/koffice-
kde4/work/koffice-2.2.0/filters/kspread/latex/export/xmlparser.h:28,
from /usr/ports/editors/koffice-
kde4/work/koffice-2.2.0/filters/kspread/latex/export/format.h:30,
from /usr/ports/editors/koffice-
kde4/work/koffice-2.2.0/filters/kspread/latex/export/cell.h:30,
from /usr/ports/editors/koffice-
kde4/work/koffice-2.2.0/filters/kspread/latex/export/cell.cc:25:
/usr/local/include/qdom.h:97: error: function definition does not declare
parameters
/usr/local/include/qdom.h:122: error: function definition does not declare
...