Build Hello Word succefffully but empty package


I followed to create source and package, all going well without errors, but there is empty bin/packages//mypackages folder. Are there bugs in that guide or what I could be missing here?

I copied the Makefile from the link, does it need to change space to tab inside define ... enddef block? I changed it anyway, does seem any difference.

There is no PKG_BUILD_DIR specified, but i guess it is point to the link /home/buildbot/mypackages in feed.conf.

$ make package/helloworld/compile
make[1] package/helloworld/compile
make[2] -C package/libs/toolchain compile
make[2] -C /home/buildbot/mypackages/examples/helloworld compile

$ ls -l bin/packages/i386_pentium4/mypackages
-rw-r--r-- 1 buildbot buildbot 1 Nov 10 17:07 Packages
-rw-r--r-- 1 buildbot buildbot 21 Nov 10 17:07 Packages.gz
-rw-r--r-- 1 buildbot buildbot 1 Nov 10 17:07 Packages.manifest
-rw-r--r-- 1 buildbot buildbot 151 Nov 10 17:07 Packages.sig

"If everything went successfully, we are presented with a brand new package named helloworld_1.0-1_<arch>.ipk in bin/packages/<arch>/mypackages folder."

The i386_pentium4 is wired, but I don't think that caused problems.

Thank you.