sodium ext: define crypto_aead_chacha20poly1305_ietf_KEYBYTES if needed

Some old libsodium versions didn't had a dedicated constant for the
IETF version of this construction.

diff --git a/ext/sodium/libsodium.c b/ext/sodium/libsodium.c
index b61c21dad2ce219fd6e29f9ddb1f15f17c4b8a4f..139b8073661e2d6518a0a603f52a113fe270796e 100644 (file)
--- a/ext/sodium/libsodium.c
+++ b/ext/sodium/libsodium.c
@@ -175,6 +175,10 @@ ZEND_END_ARG_INFO()
 # define HAVE_AESGCM 1
 #endif
 
+#ifndef crypto_aead_chacha20poly1305_ietf_KEYBYTES
+# define crypto_aead_chacha20poly1305_ietf_KEYBYTES crypto_aead_chacha20poly1305_KEYBYTES
+#endif
+
 const zend_function_entry sodium_functions[] = {
        PHP_FE(sodium_crypto_aead_aes256gcm_is_available, AI_None)
 #ifdef HAVE_AESGCM