--- jna-5.4.0/src/com/sun/jna/Native.java	2019-07-19 21:22:03.000000000 +0200
+++ jna-5.4.0/src/com/sun/jna/Native.java	2019-10-10 18:58:56.464572605 +0200
@@ -912,84 +912,12 @@
      * Loads the JNA stub library.
      * First tries jna.boot.library.path, then the system path, then from the
      * jar file.
+    * MODIFIED FROM UPSTREAM - we rip out all sorts of gunk here that is
+    * unnecessary when JNA is properly installed with the OS.
      */
     private static void loadNativeDispatchLibrary() {
-        if (!Boolean.getBoolean("jna.nounpack")) {
-            try {
-                removeTemporaryFiles();
-            }
-            catch(IOException e) {
-                LOG.log(Level.WARNING, "JNA Warning: IOException removing temporary files", e);
-            }
-        }
-
-        String libName = System.getProperty("jna.boot.library.name", "jnidispatch");
-        String bootPath = System.getProperty("jna.boot.library.path");
-        if (bootPath != null) {
-            // String.split not available in 1.4
-            StringTokenizer dirs = new StringTokenizer(bootPath, File.pathSeparator);
-            while (dirs.hasMoreTokens()) {
-                String dir = dirs.nextToken();
-                File file = new File(new File(dir), System.mapLibraryName(libName).replace(".dylib", ".jnilib"));
-                String path = file.getAbsolutePath();
-                LOG.log(DEBUG_JNA_LOAD_LEVEL, "Looking in {0}", path);
-                if (file.exists()) {
-                    try {
-                        LOG.log(DEBUG_JNA_LOAD_LEVEL, "Trying {0}", path);
-                        System.setProperty("jnidispatch.path", path);
-                        System.load(path);
-                        jnidispatchPath = path;
-                        LOG.log(DEBUG_JNA_LOAD_LEVEL, "Found jnidispatch at {0}", path);
-                        return;
-                    } catch (UnsatisfiedLinkError ex) {
-                        // Not a problem if already loaded in anoteher class loader
-                        // Unfortunately we can't distinguish the difference...
-                        //System.out.println("File found at " + file + " but not loadable: " + ex.getMessage());
-                    }
-                }
-                if (Platform.isMac()) {
-                    String orig, ext;
-                    if (path.endsWith("dylib")) {
-                        orig = "dylib";
-                        ext = "jnilib";
-                    } else {
-                        orig = "jnilib";
-                        ext = "dylib";
-                    }
-                    path = path.substring(0, path.lastIndexOf(orig)) + ext;
-                    LOG.log(DEBUG_JNA_LOAD_LEVEL, "Looking in {0}", path);
-                    if (new File(path).exists()) {
-                        try {
-                            LOG.log(DEBUG_JNA_LOAD_LEVEL, "Trying {0}", path);
-                            System.setProperty("jnidispatch.path", path);
-                            System.load(path);
-                            jnidispatchPath = path;
-                            LOG.log(DEBUG_JNA_LOAD_LEVEL, "Found jnidispatch at {0}", path);
-                            return;
-                        } catch (UnsatisfiedLinkError ex) {
-                            LOG.log(Level.WARNING, "File found at " + path + " but not loadable: " + ex.getMessage(), ex);
-                        }
-                    }
-                }
-            }
-        }
-        String jnaNosys = System.getProperty("jna.nosys", "true");
-        if ((!Boolean.parseBoolean(jnaNosys)) || Platform.isAndroid()) {
-            try {
-                LOG.log(DEBUG_JNA_LOAD_LEVEL, "Trying (via loadLibrary) {0}", libName);
-                System.loadLibrary(libName);
-                LOG.log(DEBUG_JNA_LOAD_LEVEL, "Found jnidispatch on system path");
-                return;
-            }
-            catch(UnsatisfiedLinkError e) {
-            }
-        }
-        if (!Boolean.getBoolean("jna.noclasspath")) {
-            loadNativeDispatchLibraryFromClasspath();
-        }
-        else {
-            throw new UnsatisfiedLinkError("Unable to locate JNA native support library");
-        }
+        jnidispatchPath = "@LIBDIR@/" + System.mapLibraryName("jnidispatch");
+        System.load(jnidispatchPath);
     }
 
     static final String JNA_TMPLIB_PREFIX = "jna";