diff --git a/project/config/cfgdefs.sh b/project/config/cfgdefs.sh
index 2f2297a..4b7edb1 100644
--- a/project/config/cfgdefs.sh
+++ b/project/config/cfgdefs.sh
@@ -163,6 +163,12 @@ cfgdefs_perform_common_tests()
 	mb_cfgtest_headers='sys/epoll.h'
 	cfgtest_interface_presence 'epoll_create1'
 
+	mb_cfgtest_headers='sys/uio.h'
+	cfgtest_interface_presence 'preadv'
+	cfgtest_interface_presence 'preadv2'
+	cfgtest_interface_presence 'pwritev'
+	cfgtest_interface_presence 'pwritev2'
+
 	mb_cfgtest_headers='sched.h'
 	cfgtest_interface_presence 'sched_get_priority_max'
 	cfgtest_interface_presence 'sched_rr_get_interval'