I use following command to bulid sop samples that come alone with Houdini,
source houdini_setup
cd $HFS/toolkit/samples/SOP
hcustom SOP_Star.C
SOP_Star.so has been succesfully built and located in ~/houdini12.0/dso/
!!!!But when i dive into geometry level and press tab, No Star sop found!!!!
Why???I am using the free edition
Thank you very much!

Look under the “Custom” menu after hitting TAB.

edward
Look under the “Custom” menu after hitting TAB.

Thank you for your reply,,But no Cutstom menu found.I compile dso using gcc4.4 not gcc4.1.
I am using gcc 4.4 ,boost 1.46 , can gcc4.4 compile sop for houdini?
Can Houdini Apprentice Edition load custom sop?

Yes, Apprentice edition can load custom SOPs. I forgot to mention that you should copy SOP_Star.C out to writable directory first (eg. $HOME) before running hcustom.

For gcc 4.4, make sure you installed the gcc4.4 version of Houdini. And of course, make sure you're using the right 32-bit or 64-bit compiler that matches the Houdini install you did.