This patch implements a workaround to get the multithreaded compilation from D2231 working. So far, it only works for Blender, not for Cycles Standalone. Also, I have only tested the Linux codepath in the helper function. Depends on D2231. Reviewers: brecht, dingto, sergey, juicyfruit, lukasstockner97 Reviewed By: brecht Subscribers: Loner, jbakker, candreacchio, 3dLuver, LazyDodo, bliblubli Differential Revision: https://developer.blender.org/D2264