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-rw-r--r--crypto/dh/dh.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/crypto/dh/dh.h b/crypto/dh/dh.h
index a228c7a7a4c3..80b28fb39dc8 100644
--- a/crypto/dh/dh.h
+++ b/crypto/dh/dh.h
@@ -257,11 +257,13 @@ DH *DH_get_1024_160(void);
DH *DH_get_2048_224(void);
DH *DH_get_2048_256(void);
+# ifndef OPENSSL_NO_CMS
/* RFC2631 KDF */
int DH_KDF_X9_42(unsigned char *out, size_t outlen,
const unsigned char *Z, size_t Zlen,
ASN1_OBJECT *key_oid,
const unsigned char *ukm, size_t ukmlen, const EVP_MD *md);
+# endif
# define EVP_PKEY_CTX_set_dh_paramgen_prime_len(ctx, len) \
EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_PARAMGEN, \