compiling sim_solverbullet errors

[vtwinracersp2]

-i'm using fedora 17 with gcc 4.4.7 and houdini 12.1.125

-i compiled bullet 2.81 with debug options

-i compiled SIM_SolverBullet.C that was in /opt/hfs12.1.125/houdini/public/SIM_SolverBullet

i get an error when i try and launch houdini

symbol lookup error: /home/username/houdini12.1/dso/SIM_SolverBullet.so: undefined symbol: _ZN14SIM_BulletData27getBulletDataDopDescriptionEv

i was looking online for any clues. maybe the version of SIM_SolverBullet.C was compiled against a different version of bullet?

i think there there might be an issue with IMPLEMENT_DATAFACTORY

[symek]

It's more likely you have to link SIM_SolverBullet with SIM_BulletDataDOP.o, haven't checked it out, but this is common message for missing linkage objects.

[vtwinracersp2]

hcustom -g -L /usr/lib64 -I /usr/include -lBulletDynamics -lBulletCollision -lBulletSoftBody -lLinearMath SIM_BuleltData.C

hcustom -g -L /usr/lib64 -I /usr/include -lBulletDynamics -lBulletCollision -lBulletSoftBody -lLinearMath SIM_ConRelConeTwist.C

hcustom -g -L /usr/lib64 -I /usr/include -lBulletDynamics -lBulletCollision -lBulletSoftBody -lLinearMath SIM_SolverBullet.C

fedora 17 has bullet 2.81 installed.

i do get a SIM_BulletData.o and then hcustom puts SIM_BulletData.so into /home/username/houdini12.1/dso/

there is some older version of bullet that is floating around (maybe on git) that was compiled against version 2.71 and that works(maybe because it defines the sim_bulletdata object inside of sim_solverbullet), but not the version of sim_solverbullet.c that comes with houdini in /opt/hfs12.1.125/houdini/public/SIM_SolverBullet

is this the correct way to compile and link this?