distutils library order causes errors when statically linking to bullet

[psigen]

When building against Bullet static libraries, the existing setup.py compiles and installs, but at runtime, gets undefined references to core structures (such as btSimulationIslandManager).

I believe this is caused by the current linking order specified in setup.py:

        libraries=["LinearMath",
                   "BulletCollision",
                   "BulletDynamics",
                   "BulletSoftBody"],

As per the suggestion in http://bulletphysics.org/Bullet/phpBB3/viewtopic.php?t=4760
reversing the linking order in setup.py to:

        libraries=["BulletSoftBody",
                   "BulletDynamics",
                   "BulletCollision",
                   "LinearMath"],

resolves this problem when linking statically, and should not have any effect on shared linking.

[Jean-Paul Calderone (exarkun)]

Thanks. I applied your suggested fix in r45.