diff --git a/src/libsodium/crypto_scalarmult/curve25519/sandy2x/consts.S b/src/libsodium/crypto_scalarmult/curve25519/sandy2x/consts.S
index d7b64f91..72a8a673 100644
--- a/src/libsodium/crypto_scalarmult/curve25519/sandy2x/consts.S
+++ b/src/libsodium/crypto_scalarmult/curve25519/sandy2x/consts.S
@@ -1,6 +1,12 @@
 /*
    REDMASK51 is from amd64-51/consts.s.
 */
+
+#ifdef __linux__
+# error This is a work in progress, which is know *NOT* to work on Linux
+# error Please do not fill a bug report at this point
+#endif
+
 #include "consts_namespace.h"
 .data
 .globl v0_0