Build CMake can'；t构建ITK

我正试图通过在上的示例安装ITK 4.5.0。 我用的是mac 10.5

正如所建议的，我使用的是CMake（2.8--12），但我得到了一个错误：

CMake Error: CMake was unable to find a build program corresponding to "Unix Makefiles".           CMAKE_MAKE_PROGRAM is not set.  You probably need to select a different build tool.
CMake Error: Error required internal CMake variable not set, cmake may be not be built     correctly.
Missing variable is:
CMAKE_C_COMPILER_ENV_VAR
CMake Error: Error required internal CMake variable not set, cmake may be not be built correctly.
Missing variable is:
CMAKE_C_COMPILER
CMake Error: Could not find cmake module file: /Users/usr/Desktop/ITK_bin/CMakeFiles/2.8.12.2/CMakeCCompiler.cmake
CMake Error: Error required internal CMake variable not set, cmake may be not be built correctly.
Missing variable is:
CMAKE_CXX_COMPILER_ENV_VAR
CMake Error: Error required internal CMake variable not set, cmake may be not be built correctly.
Missing variable is:
CMAKE_CXX_COMPILER
CMake Error: Could not find cmake module file: /Users/usr/Desktop/ITK_bin/CMakeFiles/2.8.12.2/CMakeCXXCompiler.cmake
CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage
CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage
Configuring incomplete, errors occurred!

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我做错了什么？我需要在路径中添加一些内容吗

安装XCode，并确保“make”程序在您的路径中可用