1 files changed, 4 insertions, 0 deletions
diff --git a/os-posix.c b/os-posix.c
index 3cd52e1e70..b674b20b1b 100644
--- a/os-posix.c
+++ b/os-posix.c
@@ -337,6 +337,7 @@ bool is_daemonized(void)
 
 int os_mlock(void)
 {
+#ifdef HAVE_MLOCKALL
     int ret = 0;
 
     ret = mlockall(MCL_CURRENT | MCL_FUTURE);
@@ -345,4 +346,7 @@ int os_mlock(void)
     }
 
     return ret;
+#else
+    return -ENOSYS;
+#endif
 }