OpenJDK build dependencies

[Ganesh]

Do we require following dependencies to build OpenJDK 8 in Windows. The 
OpenJDK 8 build readme didn't mention about these dependecies but 
OpenJDK 7 requires these. Please confirm. I have installed complete 
Visual Studio 2010 professional.

Windows 7 SDK
Direct X 9
Apache Ant

While building i am getting the below error.

Could not start process!  Failed with error 2: The system cannot find 
the file specified.

make[2]: *** 
[/cygdrive/c/work/openjdk/openjdk-8u/build/windows-x86_64-normal-server-release/jdk/objs/libfdlibm/e_acos.obj] 
Error 1
make[1]: *** [libs-only] Error 2
/cygdrive/c/work/openjdk/openjdk-8u//make/Main.gmk:115: recipe for 
target 'jdk-only' failed
make: *** [jdk-only] Error 2


Regards
Ganesh