2654e9c9c1
Default mesa driver for ubuntu 20.04 fails when a name is defined twice. M_PI is defined in both `common_workbench_lib` and `common_math_lib`. This patch remove the define out of common_workbench_lib For reference it fails on https://github.com/mesa3d/mesa/blob/mesa-20.0.8/src/compiler/glsl/glcpp/glcpp-parse.y#L1186 during the check if the macros are the same. Reviewed By: Clément Foucault Differential Revision: https://developer.blender.org/D8741