编译OpenJDK错误

[XLF_Hello]

刚刚接触JVM虚拟机，看的是《深入理解java虚拟机》一书，但刚刚开头就遇到了麻烦，在使用make sanity时运行成功

...
Previous JDK Settings:
  PREVIOUS_RELEASE_PATH = USING-PREVIOUS_RELEASE_IMAGE
    ALT_PREVIOUS_RELEASE_PATH = 
  PREVIOUS_JDK_VERSION = 1.6.0
    ALT_PREVIOUS_JDK_VERSION = 
  PREVIOUS_JDK_FILE = 
    ALT_PREVIOUS_JDK_FILE = 
  PREVIOUS_JRE_FILE = 
    ALT_PREVIOUS_JRE_FILE = 
  PREVIOUS_RELEASE_IMAGE = /Library/Java/JavaVirtualMachines/jdk1.8.0_25.jdk/Contents/Home
    ALT_PREVIOUS_RELEASE_IMAGE = 


Sanity check passed.
但使用make 执行整个OpenJDK编译时报错了

BUILD FAILED
/Users/xiaoliufu/Develop/JVM/jdkBuild/openjdk-7u40/langtools/make/build.xml:452: The following error occurred while executing this line:
/Users/xiaoliufu/Develop/JVM/jdkBuild/openjdk-7u40/langtools/make/build.xml:795: Compile failed; see the compiler error output for details.

Total time: 8 seconds
make[2]: *** [build] Error 1
make[1]: *** [langtools-build] Error 2
make: *** [build_product_image] Error 2

上网查了好久也没有找到问题的原因，想知道如何处理？

[XLF_Hello]

自己顶一下！

[dracularking]

没有编译错误的详细原因，要把error details找出来