diff --git a/src/os_unix.c b/src/os_unix.c
index 32850f3..1c00f22 100644
--- a/src/os_unix.c
+++ b/src/os_unix.c
@@ -3376,7 +3376,15 @@
 }
 
 #ifdef USE_GCOV_FLUSH
-extern void __gcov_flush();
+# if (defined(__GNUC__) \
+	    && ((__GNUC__ == 11 && __GNUC_MINOR__ >= 1) || (__GNUC__ >= 12))) \
+	|| (defined(__clang__) && (__clang_major__ >= 12))
+extern void __gcov_dump(void);
+extern void __gcov_reset(void);
+#  define __gcov_flush() do { __gcov_dump(); __gcov_reset(); } while (0)
+# else
+extern void __gcov_flush(void);
+# endif
 #endif
 
     void