diff --git a/lib/Support/Unix/Process.inc b/lib/Support/Unix/Process.inc
index 87987dcee7..3c65a7eb23 100644
--- a/lib/Support/Unix/Process.inc
+++ b/lib/Support/Unix/Process.inc
@@ -99,7 +99,10 @@ size_t Process::GetMallocUsage() {
   return mi.uordblks;
 #elif defined(HAVE_MALLINFO)
   struct mallinfo mi;
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
   mi = ::mallinfo();
+#pragma clang diagnostic pop
   return mi.uordblks;
 #elif defined(HAVE_MALLOC_ZONE_STATISTICS) && defined(HAVE_MALLOC_MALLOC_H)
   malloc_statistics_t Stats;