Fix the bug of issue #141 (libtorch/openmp loading).

wrapper/python/torch_loading.py

@@ -36,6 +36,11 @@ download_uncompress(uncompress_dir=DOWNLOAD_PATH, base_url=BASE_URL,
                     already_downloaded_msg=False,
                     extra_file_to_check_dl='libtorch')
 
+from os import system
+# modify the rpath of libtorch in order for the linker to find the libiomp5 to
+# load from libtorch lib directory (so we're not using OpenMP from MacPorts
+# here)
+system('install_name_tool -add_rpath "/Users/$USER/libtorch/lib" /Users/$USER/libtorch/lib/libtorch.dylib 2>/dev/null')
 
 # load shared libraries in memory
 for libname in [C10_LIB, TORCH_LIB]: #, GOMP_LIB]: