Restore import

openssl/src/cipher.rs

@@ -8,6 +8,8 @@ cfg_if! {
     if #[cfg(any(ossl110, libressl273))] {
         use ffi::{EVP_CIPHER_block_size, EVP_CIPHER_iv_length, EVP_CIPHER_key_length};
     } else {
+        use libc::c_int;
+
         #[allow(bad_style)]
         pub unsafe fn EVP_CIPHER_iv_length(ptr: *const ffi::EVP_CIPHER) -> c_int {
             (*ptr).iv_len

openssl/src/symm.rs

@@ -735,6 +735,8 @@ cfg_if! {
     if #[cfg(any(ossl110, libressl273))] {
         use ffi::{EVP_CIPHER_block_size, EVP_CIPHER_iv_length, EVP_CIPHER_key_length};
     } else {
+        use libc::c_int;
+
         #[allow(bad_style)]
         pub unsafe fn EVP_CIPHER_iv_length(ptr: *const ffi::EVP_CIPHER) -> c_int {
             (*ptr).iv_len