From cb78eab8e5b6f01d91fb97b5afb2b374649885e0 Mon Sep 17 00:00:00 2001
From: Alexander Nutz <alexandernutz68@gmail.com>
Date: Fri, 5 Sep 2025 18:16:27 +0200
Subject: [PATCH] add extern C to chacha20

---
 chacha20.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/chacha20.h b/chacha20.h
index 42853ad..83e3012 100644
--- a/chacha20.h
+++ b/chacha20.h
@@ -86,6 +86,10 @@
 #ifndef SLOWCRYPT_CHACHA20_H
 #define SLOWCRYPT_CHACHA20_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifndef SLOWCRYPT_CHACHA20_UINT32
 #include <stdint.h>
 #define SLOWCRYPT_CHACHA20_UINT32 uint32_t
@@ -286,4 +290,8 @@ SLOWCRYPT_CHACHA20_FUNC void slowcrypt_chacha20_block(
 
 #endif
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif