xmake cannot compile this project

[logerrors]

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Describe the bug

cannot compile this project by xmake. this is screenshot.

Expected behavior

it should compile without error.

Error output

error: src/tbox/libc/string/wcscat.c:48:5: error: this ‘while’ clause does not guard... [-Werror=misleading-indentation]
   48 |     while (*s) s++; --s;
      |     ^~~~~
src/tbox/libc/string/wcscat.c:48:21: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘while’
   48 |     while (*s) s++; --s;
      |                     ^~
cc1: all warnings being treated as errors
  > in src/tbox/libc/string/wcscat.c

Related Environment

xmak version: v2.6.3+202201250059 run env: os -> ubuntu20.04, arch: x86_64

Additional context

Add any other context about the problem here.

[waruqi]

https://github.com/tboox/vm86/blob/3903534e64363d5a171831e70874cff6679046dd/xmake.lua#L55

try

add_requires("tbox 1.6.6", {configs = {cflags = "-Wno-error=misleading-indentation"}})