radiant: check Linux prefix against XDG_DATA_HOME before HOME

diff --git a/radiant/mainframe.cpp b/radiant/mainframe.cpp
index f43268a5ec097333eed5f0bcb3414f6297d16bec..225a7d5e5fba955486817c08b7dc842f9a0636ed 100644 (file)
--- a/radiant/mainframe.cpp
+++ b/radiant/mainframe.cpp
@@ -256,9 +256,17 @@ void HomePaths_Realise(){
 
 #if (GDEF_OS_POSIX && !GDEF_OS_MACOS)
                        path.clear();
-                       path << DirectoryCleaned( g_get_home_dir() ) << prefix << "/";
-                       g_qeglobals.m_userEnginePath = path.c_str();
-                       break;
+                       path << DirectoryCleaned( g_get_user_data_dir() ) << ( prefix + 1 ) << "/";
+                       if ( file_exists( path.c_str() ) && file_is_directory( path.c_str() ) ) {
+                               g_qeglobals.m_userEnginePath = path.c_str();
+                               break;
+                       }
+                       else {
+                               path.clear();
+                               path << DirectoryCleaned( g_get_home_dir() ) << prefix << "/";
+                               g_qeglobals.m_userEnginePath = path.c_str();
+                               break;
+                       }
 #endif
                }