vendor/libsodium/src/libsodium/include/sodium/crypto_stream_xsalsa20.h in rbnacl-libsodium-1.0.10 vs vendor/libsodium/src/libsodium/include/sodium/crypto_stream_xsalsa20.h in rbnacl-libsodium-1.0.11

@@ -12,10 +12,10 @@
 #include <stddef.h>
 #include <stdint.h>
 #include "export.h"
 
 #ifdef __cplusplus
-# if __GNUC__
+# ifdef __GNUC__
 #  pragma GCC diagnostic ignored "-Wlong-long"
 # endif
 extern "C" {
 #endif