Problem compiling against OsgBullet 2.81

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Ran cmake on the check out version of OsgWorks 3.0.0 and when I was compiling 
the applications and the examples I got the following error messages:

Linking CXX executable ../../bin/BasicDemo
../../lib/libosgbCollision.so.3.00.00: undefined reference to 
`btShapeHull::buildHull(double)'
../../lib/libosgbDynamics.so.3.00.00: undefined reference to 
`btAngularLimit::set(double, double, double, double, double)'
../../lib/libosgbDynamics.so.3.00.00: undefined reference to 
`btStaticPlaneShape::btStaticPlaneShape(btVector3 const&, double)'
../../lib/libosgbDynamics.so.3.00.00: undefined reference to 
`btGeneric6DofSpringConstraint::setStiffness(int, double)'
../../lib/libosgbDynamics.so.3.00.00: undefined reference to 
`btGeneric6DofSpringConstraint::setDamping(int, double)'
../../lib/libosgbCollision.so.3.00.00: undefined reference to 
`btConvexHullShape::btConvexHullShape(double const*, int, int)'
collect2: error: ld returned 1 exit status
make[2]: *** [bin/BasicDemo] Error 1
make[1]: *** [examples/basicdemo/CMakeFiles/BasicDemo.dir/all] Error 2
make: *** [all] Error 2

And hence the build fails.

Original issue reported on code.google.com by ming...@gmail.com on 8 Oct 2014 at 3:49