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/chacha20.h b/include/mbedtls/chacha20.h
index 47bd7d3..cfea40a 100644
--- a/include/mbedtls/chacha20.h
+++ b/include/mbedtls/chacha20.h
@@ -52,7 +52,7 @@
#if !defined(MBEDTLS_CHACHA20_ALT)
-typedef struct
+typedef struct mbedtls_chacha20_context
{
uint32_t state[16]; /*! The state (before round operations). */
uint8_t keystream8[64]; /*! Leftover keystream bytes. */