Cygwin: try LD_LIBRARY_PATH

Author: rgommers

tests/packages/sharedlib-in-package/mypkg/__init__.py

@@ -27,7 +27,10 @@ def _enable_sharedlib_loading():
         os.add_dll_directory(basedir)
     elif sys.platform == "cygwin":
         basedir = os.path.dirname(__file__)
-        os.environ["PATH"] = f"{os.environ['PATH']:s}:{basedir:s}"
+        if 'LD_LIBRARY_PATH' in os.environ:
+            os.environ["LD_LIBRARY_PATH"] = f"{os.environ['LD_LIBRARY_PATH']:s}:{basedir:s}"
+        else:
+            os.environ["LD_LIBRARY_PATH"] = f"{basedir:s}"
 
 
 _enable_sharedlib_loading()