Make macOS wheels portable

This has the effect of removing the non-portable LC_LOAD_DYLIB and LC_RPATH directives for libjvm.dylib from the .so file.

Fixes #79, see for more details

CHANGES.md

@@ -1,6 +1,7 @@
 # jpy Changelog
 
 ## Version 0.11.1.dev0 (in development)
+* [#79](https://github.com/jpy-consortium/jpy/issues/79) Produce usable / distributable macosx wheels
 
 ## Version 0.11.0
 * Publish artifacts to [PyPi](https://pypi.org/project/jpy/). Source tarball and binary wheels for Python 3.6 - 3.10 for Linux, Mac, and Windows (x86_64).

setup.py

@@ -134,8 +134,10 @@
     extra_link_args += ['-Xlinker', '-rpath', jvm_dll_dir]
 elif platform.system() == 'Darwin':
     include_dirs += [os.path.join(jdk_home_dir, 'include', 'darwin')]
-    library_dirs += [os.path.join(sys.exec_prefix, 'lib')]
-    extra_link_args += ['-Xlinker', '-rpath', jvm_dll_dir]
+    # This has the effect of removing the non-portable LC_LOAD_DYLIB and LC_RPATH directives for libjvm.dylib from the .so files.
+    # See https://github.com/jpy-consortium/jpy/issues/79 for details.
+    libraries = None
+    library_dirs = None
 
 
 # ----------- Functions -------------