Rock cannot find sdk when run from make #1001

x :
 rock -v x.ooc

rock -v x.ooc
Parsing...
x/x.ooc:1:0 error Use not found in the ooc library path: sdk
To install ooc libraries, copy their directories to /usr/lib/ooc/
If you want to install libraries elsewhere, use the OOC_LIBS environment variable,
which is the path ooc will scan for .use files (in this case, sdk.use).
For more information, see http://ooc-lang.org/docs/tools/rock/usefiles/
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[FAIL]
make: *** [x] Error