I think you can edit qmake.conf
in mkspecs folder

some example

Qt Code:
  1. QMAKE_COPY = copy /y
  2. QMAKE_COPY_DIR = xcopy /s /q /y /i
  3. QMAKE_MOVE = move
  4. QMAKE_DEL_FILE = del
  5. QMAKE_DEL_DIR = rmdir
  6. QMAKE_CHK_DIR_EXISTS = if not exist
  7. QMAKE_MKDIR = mkdir
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