Fix pthread_create for NetBSD case

diff --git a/rpmalloc/malloc.c b/rpmalloc/malloc.c
index 56becb8..12acbe0 100644
--- a/rpmalloc/malloc.c
+++ b/rpmalloc/malloc.c
@@ -368,7 +368,7 @@
                const pthread_attr_t* attr,
                void* (*start_routine)(void*),
                void* arg) {
-#if defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__APPLE__) || defined(__HAIKU__)
+#if defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__) || defined(__HAIKU__)
 	char fname[] = "pthread_create";
 #else
 	char fname[] = "_pthread_create";