+#ifdef GNULIB_GC_MD2
+Gc_rc
+gc_md2 (const void *in, size_t inlen, void *resbuf)
+{
+ md2_buffer (in, inlen, resbuf);
+ return GC_OK;
+}
+#endif
+
+#ifdef GNULIB_GC_MD4
+Gc_rc
+gc_md4 (const void *in, size_t inlen, void *resbuf)
+{
+ size_t outlen = gcry_md_get_algo_dlen (GCRY_MD_MD4);
+ gcry_md_hd_t hd;
+ gpg_error_t err;
+ unsigned char *p;
+
+ assert (outlen == GC_MD4_DIGEST_SIZE);
+
+ err = gcry_md_open (&hd, GCRY_MD_MD4, 0);
+ if (err != GPG_ERR_NO_ERROR)
+ return GC_INVALID_HASH;
+
+ gcry_md_write (hd, in, inlen);
+
+ p = gcry_md_read (hd, GCRY_MD_MD4);
+ if (p == NULL)
+ {
+ gcry_md_close (hd);
+ return GC_INVALID_HASH;
+ }
+
+ memcpy (resbuf, p, outlen);
+
+ gcry_md_close (hd);
+
+ return GC_OK;
+}
+#endif
+
+#ifdef GNULIB_GC_MD5