It really is that easy!

the-code-is-easy.patch

diff --git a/src/file-utils.c b/src/file-utils.c
index 2095a8d2..d283b091 100644
--- a/src/file-utils.c
+++ b/src/file-utils.c
@@ -48,7 +48,7 @@
 /* path */
 
 
-static const char *try_folder[] = { "cache", "~", "tmp", NULL };
+static const char *try_folder[] = { "var-tmp", "cache", "~", "tmp", NULL };
 
 
 static const char *
@@ -57,7 +57,9 @@ get_nth_temp_folder_to_try (int n)
         const char *folder;
 
         folder = try_folder[n];
-        if (strcmp (folder, "cache") == 0)
+        if (strcmp (folder, "var-tmp") == 0)
+                folder = "/var/tmp";
+        else if (strcmp (folder, "cache") == 0)
                 folder = g_get_user_cache_dir ();
         else if (strcmp (folder, "~") == 0)
                 folder = g_get_home_dir ();
@@ -83,18 +85,21 @@ _g_path_get_temp_work_dir (const char *parent_folder)
                 for (i = 0; try_folder[i] != NULL; i++) {
                         const char *folder;
                         GFile      *file;
-                        guint64     size;
 
                         folder = get_nth_temp_folder_to_try (i);
                         file = g_file_new_for_path (folder);
-                        size = _g_file_get_free_space (file);
-                        g_object_unref (file);
 
-                        if (max_size < size) {
-                                max_size = size;
-                                g_free (best_folder);
-                                best_folder = g_strdup (folder);
+                        if (g_file_query_exists (file, NULL)) {
+		                guint64 size = _g_file_get_free_space (file);
+
+		                if (max_size < size) {
+		                        max_size = size;
+		                        g_free (best_folder);
+		                        best_folder = g_strdup (folder);
+		                }
                         }
+
+		        g_object_unref (file);
                 }
         }
         else
@@ -103,7 +108,7 @@ _g_path_get_temp_work_dir (const char *parent_folder)
         if (best_folder == NULL)
                 return NULL;
 
-        template = g_strconcat (best_folder, "/.fr-XXXXXX", NULL);
+        template = g_strconcat (best_folder, "/.file-roller-XXXXXX", NULL);
         result = g_mkdtemp (template);
         g_free (best_folder);
 
@@ -579,7 +584,7 @@ _g_file_is_temp_work_dir (GFile *file)
 
 		folder = get_nth_temp_folder_to_try (i);
 		if (strncmp (path, folder, strlen (folder)) == 0) {
-			if (strncmp (path + strlen (folder), "/.fr-", 5) == 0) {
+			if (strncmp (path + strlen (folder), "/.file-roller-", 5) == 0) {
 				result = TRUE;
 				break;
 			}
diff --git a/src/fr-command-tar.c b/src/fr-command-tar.c
index c2f2f939..82521925 100644
--- a/src/fr-command-tar.c
+++ b/src/fr-command-tar.c
@@ -961,7 +961,7 @@ get_temp_name (FrCommandTar *c_tar,
 	char *result = NULL;
 	char *temp_name = NULL;
 
-	template = g_strconcat (dirname, "/.fr-XXXXXX", NULL);
+	template = g_strconcat (dirname, "/.file-roller-XXXXXX", NULL);
 	result = g_mkdtemp (template);
 	temp_name = g_build_filename (result, _g_path_get_basename (filepath), NULL);
 	g_free (template);