--- /dev/null
+## PKG_ADD:# Run this only if the package is installed
+## PKG_ADD:if (! exist (fullfile (fileparts (mfilename ("fullpath")), "inst"), "dir"))
+## PKG_ADD: dirlist= {"Utilities","DDGOX","ThDDGOX","QDDGOX","METLINES","DDGOXT"};
+## PKG_ADD:
+## PKG_ADD: for ii=1:length(dirlist)
+## PKG_ADD: addpath ( [ fileparts( mfilename("fullpath")) "/" dirlist{ii}])
+## PKG_ADD: end
+## PKG_ADD:
+## PKG_ADD: __gmsh = file_in_path (EXEC_PATH, "gmsh");
+## PKG_ADD: if (isempty (__gmsh))
+## PKG_ADD: __gmsh = file_in_path (EXEC_PATH, "gmsh.exe");
+## PKG_ADD: if (isempty (__gmsh))
+## PKG_ADD: warning ("gmsh does not seem to be present some functionalities will be disabled");
+## PKG_ADD: endif
+## PKG_ADD: endif
+## PKG_ADD: clear __gmsh;
+## PKG_ADD:
+## PKG_ADD: __dx = file_in_path (EXEC_PATH, "dx");
+## PKG_ADD: if (isempty (__dx))
+## PKG_ADD: __dx = file_in_path (EXEC_PATH, "dx.exe");
+## PKG_ADD: if (isempty (__dx))
+## PKG_ADD: warning ("dx does not seem to be present some functionalities will be disabled");
+## PKG_ADD: endif
+## PKG_ADD: endif
+## PKG_ADD: clear __dx;
+## PKG_ADD:end
+
+## PKG_DEL:# Run this only if the package is installed
+## PKG_DEL:if (! exist (fullfile (fileparts (mfilename ("fullpath")), "inst"), "dir"))
+## PKG_DEL: dirlist= {"Utilities","DDGOX","ThDDGOX","QDDGOX","METLINES","DDGOXT"};
+## PKG_DEL:
+## PKG_DEL: for ii=1:length(dirlist)
+## PKG_DEL: rmpath ( [ fileparts( mfilename("fullpath")) "/" dirlist{ii}])
+## PKG_DEL: end
+## PKG_DEL:end
+