Make the laser_proc library shared.

[clalancette]

This will help it link on Linux when building as a component.

Signed-off-by: Chris Lalancette clalancette@openrobotics.org

@Karsten1987 FYI, this is part of what I had to do to get the whole URG node building.

[clalancette]

Thanks for the review. @chadrockey As with #6, I'm going to go ahead and merge this, but feel free to comment and we can follow-up.

[Karsten1987]

I think there went something wrong with this change on Windows:

11:57:58 [15.812s] C:\J\workspace\ci_windows\ws\src\ros-perception\laser_proc\src\laser_publisher.cpp(115,54): warning C4267: '+=': conversion from 'size_t' to 'uint32_t', possible loss of data [C:\J\workspace\ci_windows\ws\build\laser_proc\laser_proc.vcxproj]
11:57:58 [17.000s] C:\J\workspace\ci_windows\ws\src\ros-perception\laser_proc\src\laser_publisher.cpp(117,43): warning C4267: '+=': conversion from 'size_t' to 'uint32_t', possible loss of data [C:\J\workspace\ci_windows\ws\build\laser_proc\laser_proc.vcxproj]
11:57:58 [17.250s]   laser_proc.vcxproj -> C:\J\workspace\ci_windows\ws\build\laser_proc\Release\laser_proc.dll
11:57:58 [17.343s]   Building Custom Rule C:/J/workspace/ci_windows/ws/src/ros-perception/laser_proc/CMakeLists.txt
11:57:58 [17.468s]   laser_proc_component.cpp
11:57:58 [19.718s] LINK : fatal error LNK1181: cannot open input file 'Release\laser_proc.lib'