/* getpath.c */
static void reduce ( char *dir );
static void joinpath ( char *buffer , char *stuff );
static int search_for_prefix ( char *argv0_path , char *home );
static int search_for_exec_prefix ( char *argv0_path , char *home );
static void calculate_path ( void );
static int isfile(char*);
static int ismodule(char*);
static int isxfile(char*);
static int isdir(char*);