Remove --build flag
@@ -21,4 +21,5 @@ REM set UTF-8 mode by default
chcp 65001
set PYTHONUTF8=1
set PYTHONIOENCODING="UTF-8"
-FOR %%w in (*.whl) DO %PYTHON% -m pip install %%w --build tmpbuild_%PY_VER%
+set TMPDIR=tmpbuild_%PY_VER%
+FOR %%w in (*.whl) DO %PYTHON% -m pip install %%w --no-clean
