2 files changed, 6 insertions, 3 deletions
diff --git a/include/libn.h b/include/libn.h
index 5201b1c..38f0a3a 100644
--- a/include/libn.h
+++ b/include/libn.h
@@ -294,7 +294,10 @@ int   bufio·read(io·Buffer *buf, int sz, int n, void *out);
 typedef struct mmap·Reader 
 {
     vlong len;
-    void* buf;
+    union {
+        byte   *buf;
+        ubyte *ubuf;
+    };
 } mmap·Reader;
 
 mmap·Reader mmap·open(byte *name);
diff --git a/include/u.h b/include/u.h
index d6d6f16..b430cc5 100644
--- a/include/u.h
+++ b/include/u.h
@@ -14,8 +14,8 @@
 // Modern type aliases
 
 typedef char          byte;
-typedef unsigned char ubyte;
-typedef signed char   sbyte;
+typedef unsigned char ubyte, uchar;
+typedef signed char   sbyte, schar;
 
 typedef unsigned long ulong;
 typedef signed long   slong;