_gnutls_pkcs7_unpad: add missing declaration

Signed-off-by: Daiki Ueno <ueno@gnu.org>

diff --git a/lib/crypto-api.c b/lib/crypto-api.c
index 32143e9de06b68f9a9a3aaa19c2a5e1429f5666a..b70e4edf737371af899b20600d027f1e7f91a6e3 100644 (file)
--- a/lib/crypto-api.c
+++ b/lib/crypto-api.c
@@ -498,6 +498,8 @@ error:
        return ret;
 }
 
+unsigned int _gnutls_pkcs7_unpad(const uint8_t *block, unsigned int block_size);
+
 /* If succeeds, returns the number of padding bytes to be removed;
  * zero otherwise.
  */