Load libraries from /usr/lib64 as well

Like on Fedora

Author: purejava

src/main/java/org/purejava/appindicator/AppIndicator.java

@@ -48,6 +48,7 @@ public class AppIndicator extends _AppIndicator {
 
         allPath.add("/usr/lib"); // for systems, that don't implement multiarch
         allPath.add("/app/lib"); // for flatpak and libraries in the flatpak sandbox
+        allPath.add("/usr/lib64"); // for Fedora-like distributions
         for (String path : allPath) {
             try {
                 if (!path.equals("/app/lib")) {
@@ -61,7 +62,10 @@ public class AppIndicator extends _AppIndicator {
             } catch (UnsatisfiedLinkError ignored) { }
         }
 
-        // When loading via System.load wasn't successful, try to load via System.loadLibrary
+        // When loading via System.load wasn't successful, try to load via System.loadLibrary.
+        // System.loadLibrary builds the libname by prepending the prefix JNI_LIB_PREFIX
+        // and appending the suffix JNI_LIB_SUFFIX. This usually does not work for library files
+        // with an ending like '3.so.1'.
         if (!isLoaded) {
             try {
                 System.loadLibrary(LIBNAME_WITH_VERSION);