Fixed

Makefile

@@ -11,10 +11,7 @@ all: slock
 .c.o:
 	${CC} -c ${CFLAGS} $<
 
-${OBJ}: config.h config.mk arg.h util.h
-
-config.h:
-	cp config.def.h $@
+${OBJ}: config.def.h config.mk arg.h util.h
 
 slock: ${OBJ}
 	${CC} -o $@ ${OBJ} ${LDFLAGS}

config.def.h

@@ -1,6 +1,6 @@
 /* user and group to drop privileges to */
 static const char *user  = "nobody";
-static const char *group = "nogroup";
+static const char *group = "nobody";
 
 static const char *colorname[NUMCOLS] = {
 	[INIT] =   "black",     /* after initialization */
@@ -9,4 +9,4 @@ static const char *colorname[NUMCOLS] = {
 };
 
 /* treat a cleared input like a wrong password (color) */
-static const int failonclear = 1;
+static const int failonclear = 0;

slock.c

@@ -44,7 +44,7 @@ struct xrandr {
 	int errbase;
 };
 
-#include "config.h"
+#include "config.def.h"
 
 static void
 die(const char *errstr, ...)