diff --git a/configure b/configure
index 50a0b80..219ff13 100755
--- a/configure
+++ b/configure
@@ -1230,7 +1230,10 @@
 add_to warn_flags -Wexpansion-to-defined
 add_to warn_flags -Wimplicit-fallthrough=2
 add_to warn_flags -Wmissing-format-attribute
-add_to warn_flags -Wthread-safety
+
+if test "$targetos" != "darwin"; then
+    add_to warn_flags -Wthread-safety
+fi
 
 nowarn_flags=
 add_to nowarn_flags -Wno-initializer-overrides