diff -Naur pwauth-2.3.10.orig//config.h pwauth-2.3.10//config.h
--- pwauth-2.3.10.orig//config.h        2011-10-05 15:01:12.000000000 +0200
+++ pwauth-2.3.10//config.h     2012-05-13 01:25:47.439359940 +0200
@@ -123,7 +123,7 @@

 /* #define SHADOW_NONE         /**/
 /* #define SHADOW_BSD          /* FreeBSD, NetBSD, OpenBSD, BSDI, OS X */
-#define SHADOW_SUN             /* Linux, Solaris, IRIX */
+/*#define SHADOW_SUN           /* Linux, Solaris, IRIX */
 /* #define SHADOW_JFH          /**/
 /* #define SHADOW_MDW          /**/
 /* #define SHADOW_AIX          /* AIX (see also AUTHENTICATE_AIX) */
@@ -278,7 +278,7 @@
  * to change the uid list.
  */

-#define SERVER_UIDS 30         /* user "wwwrun" on the author's system */
+/*#define SERVER_UIDS 30               /* user "wwwrun" on the author's system */


 /* If MIN_UNIX_UID is defined to an integer, logins with uid numbers less than
@@ -290,7 +290,7 @@
  * given value will be accepted).
  */

-#define MIN_UNIX_UID 500       /**/
+/*#define MIN_UNIX_UID 500     /**/


 /* If IGNORE_CASE is defined, the login given is checked in two different
@@ -319,7 +319,7 @@
  * SLEEP_LOCK.  SLEEP_TIME defaults to 2 seconds if not defined.
  */

-#define SLEEP_LOCK "/var/run/pwauth.lock"
+#define SLEEP_LOCK "/var/lock/pwauth"


 /* If ENV_METHOD is defined, pwauth expects mod_auth_external to be configured
diff -Naur pwauth-2.3.10.orig//main.c pwauth-2.3.10//main.c
--- pwauth-2.3.10.orig//main.c  2009-06-11 15:47:10.000000000 +0200
+++ pwauth-2.3.10//main.c       2012-05-13 01:24:48.698777146 +0200
@@ -50,7 +50,7 @@
     char *login, *passwd;
 #else
     char login[BFSZ+1], passwd[BFSZ+1];
-    char *c, *strchr();
+    char *c;
 #endif
     int uid,i;
     int status;
diff -Naur pwauth-2.3.10.orig//Makefile pwauth-2.3.10//Makefile
--- pwauth-2.3.10.orig//Makefile        2011-10-05 15:45:04.000000000 +0200
+++ pwauth-2.3.10//Makefile     2012-05-13 01:25:13.379021988 +0200
@@ -6,9 +6,9 @@
 #   LOCALFLAGS=   compiler flags.  Usually -g, -O, and stuff like that.

 # Settings for author's system (Redhat 6.1)
-CC=gcc
-LIB= -lcrypt
-LOCALFLAGS= -g
+#CC=gcc
+#LIB= -lcrypt
+#LOCALFLAGS= -g

 # For PAM on Redhat Linux
 # LIB=-lpam -ldl
@@ -25,16 +25,16 @@

 .PHONY: clean distclean

-CFLAGS= $(LOCALFLAGS)
+#CFLAGS= $(LOCALFLAGS)

 pwauth: main.o auth_aix.o auth_bsd.o auth_hpux.o auth_mdw.o auth_openbsd.o \
        auth_pam.o auth_sun.o fail_log.o lastlog.o nologin.o snooze.o
        $(CC) -o pwauth $(CFLAGS) main.o auth_aix.o auth_bsd.o auth_hpux.o \
                auth_mdw.o auth_openbsd.o auth_pam.o auth_sun.o fail_log.o \
-               lastlog.o nologin.o snooze.o $(LIB)
+               lastlog.o nologin.o snooze.o $(LDFLAGS)

 checkfaillog: checkfaillog.o fail_check.o
-       $(CC) -o checkfaillog $(CFLAGS) checkfaillog.o fail_check.o $(LIB)
+       $(CC) -o checkfaillog $(CFLAGS) checkfaillog.o fail_check.o $(LDFLAGS)

 main.o: main.c config.h pwauth.h fail_log.h
 auth_aix.o: auth_aix.c config.h pwauth.h