Make macOS hdRpr binary relocatable #253
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Currently, hdRpr binary on macOS has LC_RPATH in such form
/Applications/Houdini/Houdini18.0.391/Frameworks/Houdini.framework/Versions/18.0/Libraries.This binds hdRpr.dylib to particular Houdini release.
With current changes, LC_RPATH will look like
@loader_path/.Why it will work? Because, right now, we place libraries required by hdRpr.dylib (RPR and RIF libraries) to the directory with USD libraries. USD libraries are responsible for plugin loading. In such a way, on the loading of hdRpr.dylib
@loader_pathwill be substituted with the path to USD libraries.