Merge pull request #608 from grbd/master

Thank you very much.

src/Runtime/SymbolResolver.cs

@@ -57,9 +57,33 @@ namespace CppSharp
 
         public static IntPtr LoadImage (ref string name)
         {
+            var pathvalues = Environment.GetEnvironmentVariable("PATH");
+
             foreach (var format in formats)
             {
-                var attempted = System.IO.Path.Combine(Environment.CurrentDirectory, string.Format (format, name));
+                // Search the Current or specified directory for the library
+                string filename = string.Format(format, name);
+                string attempted = System.IO.Path.Combine(Environment.CurrentDirectory, filename);
+                if (!System.IO.File.Exists(attempted))
+                {
+                    // Search the Path directories for the library
+                    if (pathvalues == null)
+                        continue;
+
+                    foreach (var path in pathvalues.Split(System.IO.Path.PathSeparator))
+                    {
+                        var fullPath = System.IO.Path.Combine(path, filename);
+                        if (System.IO.File.Exists(fullPath))
+                        {
+                            attempted = fullPath;
+                            break;
+                        }
+
+                    }
+                }
+                if (!System.IO.File.Exists(attempted))
+                    continue;
+
                 var ptr = loadImage (attempted);
 
                 if (ptr == IntPtr.Zero)