Hi, i'd like to use Int4Sci-1.0 but when i run "exec builder.sce" i get this: -->exec(I4S_lib+"construct_bib.sce"); !--error 4 Undefined variable: cc at line 55 of function ilib_gen_Make called by : 4S_LDFLAG,I4S_INC,"") line 192 of exec file called by : exec(I4S_lib+"construct_bib.sce"); line 72 of exec file called by : exec builder.sce any simple remedy? Werner