[Lazarus] Code completion problems with Graph units

[Sven Barth]

Hello together!

I'm currently working on a project that uses the good old Graph units 
(or PtcGraph to be more precise) and I have the problem that code 
completion is erratic if (Ptc)Graph is in the uses-clause, because the 
IDE can not find the graphh.inc include file which is at the top of all 
Graph units. This include file is located in $fpc/packages/graph/src/inc 
whereas the full Graph units are located in other directories of 
$fpc/packages/graph/src/.
I've also tried adding the path of the include directory to the "Other 
source files" or the "Include directories" path. The IDE then either 
complains that it still can not find the file or it complains that it 
could not find the end of the file with the cursor still getting 
positioned at the $include directive.

Any ideas I could try? (besides commenting out the include directive :P)

Lazarus version is 1.2.4 on i386-linux-gtk2

Regards,
Sven