--- pptp-1.7.2/pptp_ctrl.c.sign-compare	2011-11-30 16:33:00.877964659 +0000
+++ pptp-1.7.2/pptp_ctrl.c.sign-compare	2011-11-30 18:49:17.603973525 +0000
@@ -193,7 +193,7 @@ int ctrlp_disp(PPTP_CONN * conn, void *
 void pptp_set_link(PPTP_CONN * conn, int peer_call_id);
 
 /*** log error information in control packets *********************************/
-static void ctrlp_error( int result, int error, int cause,
+static void ctrlp_error( int result, u_int8_t error, int cause,
         const char *result_text[], int max_result)
 {
     if( cause >= 0)
@@ -238,7 +238,7 @@ static const char *ctrl_msg_types[] = {
 #define MAX_CTRLMSG_TYPE 15
          
 /*** report a sent packet ****************************************************/
-static void ctrlp_rep( void * buffer, int size, int isbuff)
+static void ctrlp_rep( void * buffer, size_t size, int isbuff)
 {
     struct pptp_header *packet = buffer;
     unsigned int type;
@@ -532,7 +532,7 @@ int pptp_write_some(PPTP_CONN * conn) {
 	    return -1;
         }
     }
-    assert(retval <= conn->write_size);
+    assert((size_t)retval <= conn->write_size);
     conn->write_size -= retval;
     memmove(conn->write_buffer, conn->write_buffer + retval, conn->write_size);
     ctrlp_rep(conn->write_buffer, retval, 0);
--- pptp-1.7.2/pptp_gre.c.sign-compare	2011-11-30 16:33:00.899964648 +0000
+++ pptp-1.7.2/pptp_gre.c.sign-compare	2011-11-30 16:33:00.911964643 +0000
@@ -200,8 +200,7 @@ void pptp_gre_copy(u_int16_t call_id, u_
 int decaps_hdlc(int fd, int (*cb)(int cl, void *pack, unsigned int len), int cl)
 {
     unsigned char buffer[PACKET_MAX];
-    unsigned int start = 0;
-    int end;
+    ssize_t start = 0, end;
     int status;
     static unsigned int len = 0, escape = 0;
     static unsigned char copy[PACKET_MAX];
@@ -210,7 +209,7 @@ int decaps_hdlc(int fd, int (*cb)(int cl
     /*  this is the only blocking read we will allow */
     if ((end = read (fd, buffer, sizeof(buffer))) <= 0) {
         int saved_errno = errno;
-        warn("short read (%d): %s", end, strerror(saved_errno));
+        warn("short read (%zd): %s", end, strerror(saved_errno));
 	switch (saved_errno) {
 	  case EMSGSIZE: {
 	    socklen_t optval, optlen = sizeof(optval);
@@ -499,7 +498,7 @@ int encaps_gre (int fd, void *pack, unsi
                 if (errno == ENOBUFS)
                     rc = 0;         /* Simply ignore it */
                 stats.tx_failed++;
-            } else if (rc < sizeof(u.header) - sizeof(u.header.seq)) {
+            } else if ((size_t)rc < sizeof(u.header) - sizeof(u.header.seq)) {
                 stats.tx_short++;
             } else {
                 stats.tx_acks++;
@@ -533,7 +532,7 @@ int encaps_gre (int fd, void *pack, unsi
         if (errno == ENOBUFS)
             rc = 0;         /* Simply ignore it */
         stats.tx_failed++;
-    } else if (rc < header_len + len) {
+    } else if ((size_t)rc < header_len + len) {
         stats.tx_short++;
     } else {
         stats.tx_sent++;
--- pptp-1.7.2/pqueue.c.sign-compare	2008-05-14 07:33:55.000000000 +0100
+++ pptp-1.7.2/pqueue.c.sign-compare	2011-11-30 16:41:39.598648652 +0000
@@ -17,7 +17,7 @@ 
 
 #define MIN_CAPACITY 128 /* min allocated buffer for a packet */
 
-static int pqueue_alloc (int seq, unsigned char *packet, int packlen, pqueue_t **new);
+static int pqueue_alloc (u_int32_t seq, unsigned char *packet, int packlen, pqueue_t **new);
 
 int packet_timeout_usecs = DEFAULT_PACKET_TIMEOUT * 1000000;
 
@@ -29,7 +29,7 @@ static pqueue_t *pq_freelist_head = NULL
 
 
 
-static int pqueue_alloc(int seq, unsigned char *packet, int packlen, pqueue_t **new) {
+static int pqueue_alloc(u_int32_t seq, unsigned char *packet, int packlen, pqueue_t **new) {
 
   pqueue_t *newent;
 
@@ -125,7 +125,7 @@ static int pqueue_alloc(int seq, unsigne
 
 
 
-int pqueue_add (int seq, unsigned char *packet, int packlen) {
+int pqueue_add (u_int32_t seq, unsigned char *packet, int packlen) {
   pqueue_t *newent, *point;
 
   /* get a new entry */
--- pptp-1.7.2/pqueue.h.sign-compare	2008-05-14 07:33:55.000000000 +0100
+++ pptp-1.7.2/pqueue.h.sign-compare	2011-11-30 18:42:16.733706666 +0000
@@ -15,14 +15,14 @@ extern int packet_timeout_usecs;
 typedef struct pqueue {
   struct pqueue *next;
   struct pqueue *prev;
-  int seq;
+  u_int32_t seq;
   struct timeval expires;
   unsigned char *packet;
   int packlen;
   int capacity;
 } pqueue_t;
 
-int       pqueue_add  (int seq, unsigned char *packet, int packlen);
+int       pqueue_add  (u_int32_t seq, unsigned char *packet, int packlen);
 int       pqueue_del  (pqueue_t *point);
 pqueue_t *pqueue_head ();
 int       pqueue_expiry_time (pqueue_t *entry);
--- pptp-1.7.2/test.c.sign-compare	2008-05-14 07:33:55.000000000 +0100
+++ pptp-1.7.2/test.c.sign-compare	2011-11-30 18:45:44.553853995 +0000
@@ -52,7 +52,7 @@ static ssize_t write_reordered_swap(int
       test_ordering_phase = 0;
       /* send the new packet first */
       stat = write(fd, buf, count);
-      if (stat != count) return stat;
+      if ((size_t)stat != count) return stat;
       /* then send the old packet next */
       stat = write(fd, pocket_buf, pocket_count);
       free(pocket_buf);
@@ -96,7 +96,7 @@ static ssize_t write_reordered_retransmi
     test_ordering_phase = 0;
     /* send the new packet first */
     stat = write(fd, buf, count);
-    if (stat != count) return stat;
+    if ((size_t)stat != count) return stat;
     /* send the buffered packets in normal order */
     for (n=0; n<test_length; n++) {
       stat = write(fd, pocket_buf[n], pocket_count[n]);
@@ -142,7 +142,7 @@ static ssize_t write_reordered_reverse(i
     test_ordering_phase = 0;
     /* send the new packet first */
     stat = write(fd, buf, count);
-    if (stat != count) return stat;
+    if ((size_t)stat != count) return stat;
     /* send the buffered packets in reverse order */
     for (n=test_length-1; n>0; n--) {
       stat = write(fd, pocket_buf[n], pocket_count[n]);