Cleaned up some warnings found when compiling with Visual Studio Express 2010.

bacnet-stack/src/bacapp.c

@@ -1389,7 +1389,7 @@ bool bacapp_print_value(
         /* Try to extract the value into allocated memory. If unable, try again */
         /* another time with a string that is twice as large. */
         status = bacapp_snprintf_value(str, str_len, object_value);
-        if ((status < 0) || (status >= str_len)) {
+        if ((status < 0) || ((size_t)status >= str_len)) {
             free(str);
             str_len *= 2;
         } else if (status == 0) {

bacnet-stack/src/datetime.c

@@ -502,7 +502,7 @@ void datetime_add_minutes(
     if (minutes < 0) {
         /* convert to positive for easier math */
         minutes *= -1;
-        if (minutes > bdatetime_minutes) {
+        if ((uint32_t)minutes > bdatetime_minutes) {
             /* previous day */
             bdatetime_days -= 1;
             bdatetime_minutes += ((24 * 60) - minutes);

bacnet-stack/src/indtext.c

@@ -57,6 +57,9 @@ int stricmp(
     return (int) c1 - c2;
 }
 #endif
+#if defined(_MSC_VER)
+#define stricmp _stricmp
+#endif
 
 bool indtext_by_string(
     INDTEXT_DATA * data_list,

bacnet-stack/src/timesync.c

@@ -166,7 +166,7 @@ int timesync_encode_timesync_recipients(
             } else {
                 len = 1 + 3 + 2 + pRecipient->type.address.mac_len + 1;
             }
-            if (max_apdu >= len) {
+            if (max_apdu >= (unsigned)len) {
                 /* CHOICE - address [1] BACnetAddress - opening */
                 len = encode_opening_tag(&apdu[apdu_len], 1);
                 apdu_len += len;

bacnet-stack/src/whois.c

@@ -84,20 +84,20 @@ int whois_decode_service_request(
         if (tag_number != 0) {
             return BACNET_STATUS_ERROR;
         }
-        if (apdu_len > len) {
+        if (apdu_len > (unsigned)len) {
             len += decode_unsigned(&apdu[len], len_value, &decoded_value);
             if (decoded_value <= BACNET_MAX_INSTANCE) {
                 if (pLow_limit) {
                     *pLow_limit = decoded_value;
                 }
             }
-            if (apdu_len > len) {
+            if (apdu_len > (unsigned)len) {
                 len +=
                     decode_tag_number_and_value(&apdu[len], &tag_number, &len_value);
                 if (tag_number != 1) {
                     return BACNET_STATUS_ERROR;
                 }
-                if (apdu_len > len) {
+                if (apdu_len > (unsigned)len) {
                     len += decode_unsigned(&apdu[len], len_value, &decoded_value);
                     if (decoded_value <= BACNET_MAX_INSTANCE) {
                         if (pHigh_limit) {