-lsdformat not found error in makefile of gazebo

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HI,

I'm trying to install ros in debian wheezy and following hydro debian installation page. everything is ok before gazebo installation. I installed player and sdformat lib's smoothly. Then, i run cmakefile of gazebo but it didn't find player lib, gave that 'player doesn't work', I though it isn't so important and i pass make step. But it didn't libsdformat at this time. How can i show library path or solve this problem?

Regards,

Orcun.