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-rw-r--r--ext/openssl/ossl_pkey_ec.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/ext/openssl/ossl_pkey_ec.c b/ext/openssl/ossl_pkey_ec.c
index deca4f43b0..be9b09cae6 100644
--- a/ext/openssl/ossl_pkey_ec.c
+++ b/ext/openssl/ossl_pkey_ec.c
@@ -1469,7 +1469,7 @@ static VALUE ossl_ec_point_mul(int argc, VALUE *argv, VALUE self)
if (EC_POINT_mul(group, point_result, bn_g, point_self, bn, ossl_bn_ctx) != 1)
ossl_raise(eEC_POINT, NULL);
} else {
-#if OPENSSL_VERSION_MAJOR+0 >= 3 || defined(LIBRESSL_VERSION_NUMBER)
+#if (defined(OPENSSL_VERSION_MAJOR) && OPENSSL_VERSION_MAJOR >= 3) || defined(LIBRESSL_VERSION_NUMBER)
rb_raise(rb_eNotImpError, "calling #mul with arrays is not" \
"supported by this OpenSSL version");
#else