diff --git a/Modules/mmapmodule.c b/Modules/mmapmodule.c
index d191c1e..bd7f7cc 100644
--- a/Modules/mmapmodule.c
+++ b/Modules/mmapmodule.c
@@ -509,7 +509,11 @@
 #ifdef MREMAP_MAYMOVE
 		newmap = mremap(self->data, self->size, new_size, MREMAP_MAYMOVE);
 #else
-		newmap = mremap(self->data, self->size, new_size, 0);
+		#if defined(__NetBSD__)
+			newmap = mremap(self->data, self->size, self->data, new_size, 0);
+		#else
+			newmap = mremap(self->data, self->size, new_size, 0);
+		#endif /* __NetBSD__ */
 #endif
 		if (newmap == (void *)-1)
 		{
diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
index c1e3cfe..ca10fb5 100644
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -379,7 +379,7 @@
 #define SOCKETCLOSE close
 #endif
 
-#if defined(HAVE_BLUETOOTH_H) || defined(HAVE_BLUETOOTH_BLUETOOTH_H)
+#if defined(HAVE_BLUETOOTH_H) || defined(HAVE_BLUETOOTH_BLUETOOTH_H) &&  !defined(__NetBSD__)
 #define USE_BLUETOOTH 1
 #if defined(__FreeBSD__)
 #define BTPROTO_L2CAP BLUETOOTH_PROTO_L2CAP
diff --git a/setup.py b/setup.py
index 556f70f..62f61d6 100644
--- a/setup.py
+++ b/setup.py
@@ -1291,6 +1291,15 @@
                 )
             libraries = []
 
+        elif platform.startswith('netbsd'):
+            macros = dict(                  # at least NetBSD 5
+                HAVE_SEM_OPEN=1,
+                HAVE_SEM_TIMEDWAIT=0,
+                HAVE_FD_TRANSFER=1,
+                HAVE_BROKEN_SEM_GETVALUE=1
+                )
+            libraries = []
+
         else:                                   # Linux and other unices
             macros = dict(
                 HAVE_SEM_OPEN=1,