[chronojump] Fixed GetPrefixDir on mac

[Xavier de Blas <xaviblas src gnome org>]

commit 33d833b4308a5b8d48093bfc6393b81fffdce4d1
Author: Xavier de Blas <xaviblas gmail com>
Date:   Tue Jun 30 18:01:35 2020 +0200

    Fixed GetPrefixDir on mac

 src/util.cs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)
---
diff --git a/src/util.cs b/src/util.cs
index 4566c234..326dcf29 100644
--- a/src/util.cs
+++ b/src/util.cs
@@ -1256,7 +1256,14 @@ public class Util
                        "share" + Path.DirectorySeparatorChar + "doc" + Path.DirectorySeparatorChar + 
"chronojump");
        }
 
-       public static string GetPrefixDir(){
+       public static string GetPrefixDir()
+       {
+               //on mac with the bundle we use this method to return PrefixDir, as BaseDirectory and 
GetCurrentDirectory() do not work
+               if(UtilAll.GetOSEnum() == UtilAll.OperatingSystems.MACOSX)
+                       return (System.IO.Path.Combine(
+                                               
Path.GetDirectoryName(Process.GetCurrentProcess().MainModule.FileName),
+                                               ".."));
+
                string baseDirectory = System.IO.Path.Combine(System.AppDomain.CurrentDomain.BaseDirectory, 
"..");
                if (! Directory.Exists(Path.Combine(baseDirectory, "lib" + Path.DirectorySeparatorChar + 
"chronojump"))) {
                        baseDirectory = System.IO.Path.Combine(baseDirectory, "..");