linux下編譯安裝freetype出錯訊息及解決方法

ubuntu12.04下編譯安裝freetype出現以下錯誤訊息：

configure: creating ./config.status
config.status: creating unix-cc.mk
config.status: creating unix-def.mk
config.status: creating freetype-config
config.status: creating freetype2.pc
config.status: creating ftconfig.h
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'.

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解決方法：

cd builds/unix
./configure
cd ../ ../
make