cannot find header file; but build/runs OK

[Kees Veen]

Hi,
Linux, Debian, Kdevel. 3.5.2; build = debug mode;
I just started of with C++ and I am using a wxWidgets helloworld example.
The parser complains about not finding the header file wx/wx.h

#include <wx/wx.h>

Still, the program builds and runs OK.
I have inserted the
"`wx-config --cppflags` in compile flags and `wx-config --libs` in link
flags"
stuff as indicated on the wx wiki ste (http://wiki.wxwidgets.org/Wx-Config).
Googled for hours, but I could not find any usable hints.
Thanks.
Wim