-const gccipher chacha20, chacha12, chacha8;
-const gccipher chacha20_ietf, chacha12_ietf, chacha8_ietf;
-const gccipher xchacha20, xchacha12, xchacha8;
+extern const gccipher chacha20, chacha12, chacha8;
+extern const gccipher chacha20_ietf, chacha12_ietf, chacha8_ietf;
+extern const gccipher xchacha20, xchacha12, xchacha8;