1 files changed, 9 insertions, 0 deletions
diff --git a/xmake/core/base/libc.lua b/xmake/core/base/libc.lua
index d3f02d7f5..6e69dd203 100644
--- a/xmake/core/base/libc.lua
+++ b/xmake/core/base/libc.lua
@@ -31,6 +31,7 @@ libc._dataptr = libc._dataptr or libc.dataptr
 libc._ptraddr = libc._ptraddr or libc.ptraddr
 libc._diffptr = libc._diffptr or libc.diffptr
 libc._byteof  = libc._byteof or libc.byteof
+libc._setbyte = libc._setbyte or libc.setbyte
 
 -- load modules
 local ffi = xmake._LUAJIT and require("ffi")
@@ -103,6 +104,14 @@ function libc.byteof(data, offset)
     end
 end
 
+function libc.setbyte(data, offset, value)
+    if ffi then
+        data[offset] = value
+    else
+        return libc._setbyte(data, offset, value)
+    end
+end
+
 function libc.diffptr(data, offset)
     if ffi then
         return data + offset