unsigned int SimpleRND(unsigned int);
unsigned int RND(unsigned int);
unsigned int InitRND(long);
-char *GetLoginName(void);
+char *getLoginName(void);
+char *getHomeDir(void);
void MarkTileDirty(int, int);
void GetOptions(char **);
void Error(int, char *, ...);
void *checked_malloc(unsigned long);
+void *checked_calloc(unsigned long);
char *getKeyNameFromKeySym(KeySym);
char *getX11KeyNameFromKeySym(KeySym);
KeySym getKeySymFromX11KeyName(char *);