Qt Creator's editor fails to detect include paths for Maemo 5 projects

When I create a .pro file and target Maemo 5 and then add to it some libs that are in the SDK, Qt Creator's text editor fails to detect the correct include path for these libs and underlines the typenames, functions, etc. from these libs. However, these projects still build and run correctly.

For example:

maemo5 {
CONFIG += link_pkgconfig
PKGCONFIG += libosso mafw mafw-shared glib-2.0
QT += maemo5
}

Then for example,

#include <libmafw/mafw.h>
#include <libmafw-shared/mafw-shared.h>
#include <glib.h>

Now the project builds fine, but Qt Creator underlines these includes ("No such file or directory") and any occurrences of any type names or functions from these libraries.

Note that this is true for all other libraries (eg. Glib, Gtk, Hildon, etc, except Qt), not just the ones in my example.