Allow to forward declare of public structs #1215
Thanks to forward declare we can declare `struct` in our header file instead making #include
diff --git a/include/mbedtls/sha512.h b/include/mbedtls/sha512.h
index 5bb83f4..0145890 100644
--- a/include/mbedtls/sha512.h
+++ b/include/mbedtls/sha512.h
@@ -52,7 +52,7 @@
* checksum calculations. The choice between these two is
* made in the call to mbedtls_sha512_starts_ret().
*/
-typedef struct
+typedef struct mbedtls_sha512_context
{
uint64_t total[2]; /*!< The number of Bytes processed. */
uint64_t state[8]; /*!< The intermediate digest state. */