rl-master comile error

[chgjsj-th]

There was an error when comiling rl-master:

[ 36%] Building CXX object src/rl/sg/CMakeFiles/sg.dir/solid/Scene.cpp.o
[ 36%] Building CXX object src/rl/sg/CMakeFiles/sg.dir/solid/Shape.cpp.o
[ 36%] Linking CXX shared library ../../../lib/librlsg.so
/usr/bin/ld: /usr/local/lib/libBulletCollision.a(btDbvtBroadphase.o): relocation R_X86_64_32S against `_ZTV16btDbvtBroadphase' can not be used when making a shared object; recompile with -fPIC
/usr/local/lib/libBulletCollision.a: error adding symbols: Bad value
collect2: error: ld returned 1 exit status
src/rl/sg/CMakeFiles/sg.dir/build.make:686: recipe for target 'lib/librlsg.so.0.7.0' failed
make[2]: *** [lib/librlsg.so.0.7.0] Error 1
CMakeFiles/Makefile2:1478: recipe for target 'src/rl/sg/CMakeFiles/sg.dir/all' failed
make[1]: *** [src/rl/sg/CMakeFiles/sg.dir/all] Error 2
Makefile:165: recipe for target 'all' failed
make: *** [all] Error 2

OS:ubuntu 16.04

[rickertm]

It seems you're linking against a static version of the Bullet library that is missing the -fPIC option. You can recompile Bullet with this option or build a shared version of Bullet instead. On Ubuntu, you can also install Bullet via the libbullet-dev package.

RL can also be installed as pre-built packages on Ubuntu via our PPA on LaunchPad. There is a PPA for the last release and a PPA for the current master branch.