=== bugfix ===

[ #6077 ] Scripts in sub-sub-folders of Blender's scripts folder won't run.
[ #5572 ] Scripts in sub-folders of Blender's scripts folder won't run
- I've added a function in blenlib to join two strings with a path separator in between.
- Willian, Campbell, please check if commit in BPY_menus is ok and test - thanks!

source/blender/blenlib/BLI_blenlib.h

@@ -96,6 +96,7 @@ void BLI_make_file_string(const char *relabase, char *string,  const char *dir,
 void BLI_make_exist(char *dir);
 void BLI_make_existing_file(char *name);
 void BLI_split_dirfile(const char *string, char *dir, char *file);
+void BLI_join_dirfile(char *string, const char *dir, const char *file);
 int BLI_testextensie(const char *str, const char *ext);
 void addlisttolist(ListBase *list1, ListBase *list2);
 void BLI_insertlink(struct ListBase *listbase, void *vprevlink, void *vnewlink);

source/blender/blenlib/intern/util.c

@@ -1255,7 +1255,24 @@ void BLI_split_dirfile(const char *string, char *dir, char *file)
 	}
 #endif
 }
- 
+
+/* simple appending of filename to dir, does not check for valid path! */
+void BLI_join_dirfile(char *string, const char *dir, const char *file)
+{
+	int sl_dir = strlen(dir);
+	BLI_strncpy(string, dir, FILE_MAX);
+	if (sl_dir > FILE_MAX-1) sl_dir = FILE_MAX-1;
+#ifdef WIN32
+	string[sl_dir] = '\\';
+#else
+	string[sl_dir] = '/';
+#endif
+	sl_dir++;
+	if (sl_dir <FILE_MAX) {
+		BLI_strncpy(string + sl_dir, file, FILE_MAX-sl_dir);
+	}
+}
+
 static int add_win32_extension(char *name)
 {
 	int retval = 0;

source/blender/python/BPY_menus.c

@@ -865,14 +865,8 @@ static int bpymenu_ParseDir(char *dirname, char *parentdir, int is_userdir )
 						s = de->d_name;
 						if (parentdir) {
 							/* Join parentdir and de->d_name */
-							short a = strlen(parentdir);
+							BLI_join_dirfile(subdir, parentdir, de->d_name);
-							strcpy(subdir, parentdir);
+
-							strcpy(subdir + a+1, de->d_name);
-#ifdef WIN32
-							subdir[a] = '\\';
-#else
-							subdir[a] = '/';
-#endif
 							s = subdir;
 						}
 						bpymenu_ParseFile(file, s, is_userdir);
@@ -905,7 +899,8 @@ static int bpymenu_ParseDir(char *dirname, char *parentdir, int is_userdir )
 				}
 				s = de->d_name;
 				if (parentdir) {
-					BLI_make_file_string(NULL, subdir, parentdir, de->d_name);
+					/* Join parentdir and de->d_name */
+					BLI_join_dirfile(subdir, parentdir, de->d_name);					
 					s = subdir;
 				}
 				if (bpymenu_ParseDir(path, s, is_userdir) == -1) {