編譯的xorg的問題

betatoy

我在編譯xorg的freetype庫的時候./configure提示出:

FreeType build system -- automatic system detection

The following settings are used:

platform unix
compiler cc
configuration directory ./builds/unix
configuration rules ./builds/unix/unix.mk

If this does not correspond to your system or settings please remove the file
`config.mk' from this directory then read the INSTALL file for help.

Otherwise, simply type `make' again to build the library,
or `make refdoc' to build the API reference (the latter needs python).

make: Nothing to be done for `unix'.

請問這個Nothing to be done for `unix'是怎麽回事兒? 影響使用嗎?