diff --git a/ports/bsd/bacport.h b/ports/bsd/bacport.h
index 9c2aae9b..e87235db 100644
--- a/ports/bsd/bacport.h
+++ b/ports/bsd/bacport.h
@@ -100,6 +100,6 @@ extern int bip_get_local_netmask(
                             _read_property, _write_property, _RPM_list,     \
                             _RR_info, _iterator, _value_list, _COV,         \
                             _COV_clear, _intrinsic_reporting)               \
-    /*TODO Add compile error "Unsupported BACNET_OBJECT_TABLE for this platform."  */
+    static_assert(false, "Unsupported BACNET_OBJECT_TABLE for this platform")
 
 #endif
diff --git a/ports/linux/bacport.h b/ports/linux/bacport.h
index 4d63c2d2..aace0f90 100644
--- a/ports/linux/bacport.h
+++ b/ports/linux/bacport.h
@@ -106,8 +106,7 @@
                             _read_property, _write_property, _RPM_list,     \
                             _RR_info, _iterator, _value_list, _COV,         \
                             _COV_clear, _intrinsic_reporting)               \
-/*TODO Add compile error "Unsupported BACNET_OBJECT_TABLE for this platform."  */
-
+    static_assert(false, "Unsupported BACNET_OBJECT_TABLE for this platform")
 
 /** @file linux/bacport.h  Includes Linux network headers. */
 
diff --git a/ports/lwip/bacport.h b/ports/lwip/bacport.h
index 9867960c..91f40165 100644
--- a/ports/lwip/bacport.h
+++ b/ports/lwip/bacport.h
@@ -41,6 +41,6 @@
                             _read_property, _write_property, _RPM_list,     \
                             _RR_info, _iterator, _value_list, _COV,         \
                             _COV_clear, _intrinsic_reporting)               \
-    /*TODO Add compile error "Unsupported BACNET_OBJECT_TABLE for this platform."  */
+    static_assert(false, "Unsupported BACNET_OBJECT_TABLE for this platform")
 
 #endif
diff --git a/ports/win32/bacport.h b/ports/win32/bacport.h
index f3e6ab26..a7be6ef9 100644
--- a/ports/win32/bacport.h
+++ b/ports/win32/bacport.h
@@ -70,12 +70,6 @@ and globals in favor of more secure versions.  */
 #endif
 #include <sys/timeb.h>
 
-#if defined(__BORLANDC__) || defined(_WIN32)
-/* seems to not be defined in time.h as specified by The Open Group */
-/* difference from UTC and local standard time  */
-long int timezone;
-#endif
-
 #ifdef _MSC_VER
 #define inline __inline
 #endif
@@ -93,7 +87,6 @@ long int timezone;
                             _read_property, _write_property, _RPM_list,     \
                             _RR_info, _iterator, _value_list, _COV,         \
                             _COV_clear, _intrinsic_reporting)               \
-/*TODO Add compile error "Unsupported BACNET_OBJECT_TABLE for this platform."  */
-
+    static_assert(false, "Unsupported BACNET_OBJECT_TABLE for this platform")
 
 #endif