1 files changed, 10 insertions, 0 deletions
diff --git a/src/nvim/macros.h b/src/nvim/macros.h
index 93ae72987c..fab4f548c8 100644
--- a/src/nvim/macros.h
+++ b/src/nvim/macros.h
@@ -97,6 +97,16 @@
  */
 #define vim_isbreak(c) (breakat_flags[(char_u)(c)])
 
+#ifdef BINARY_FILE_IO
+# define WRITEBIN   "wb"        /* no CR-LF translation */
+# define READBIN    "rb"
+# define APPENDBIN  "ab"
+#else
+# define WRITEBIN   "w"
+# define READBIN    "r"
+# define APPENDBIN  "a"
+#endif
+
 #  define mch_fopen(n, p)       fopen((n), (p))
 #   define mch_open(n, m, p)    open((n), (m), (p))