64-bit windows8.1 compiled OPENJDK8

First download Openjdk8
http://hg.openjdk.java.net/jdk8/jdk8/
Here is the version management tool mercurial, similar to Git, you can check if you don't know.
Clone, there is a file readme-builds.html, inside said more detailed, is the main reference document.
The jdk8 after clone needs to run SH./get_source.sh to get the full code.

My compilation environment and preparation (here is an example of compiling a 32-bit openjdk):
win8.1 64-bit
MinGW (official website http://www.mingw.org/, here 3.82.90, note the download time selected Msys)
FreeType (a font engine, Oracle
JDK does not open source its font, so openjdk with open source FreeType, official website http://www.freetype.org/, here is freetype2.6)
Visual Studio (the Windows version of OPENJDK will use its compiler, which uses express
Version. Http://download.microsoft.com/download/1/E/5/1E5F1C0A-0D5B-426A-A603-1798B951DDAE/VS2010Express1.iso
SP1 Patch: Http://download.microsoft.com/download/E/B/A/EBA0A152-F426-47E6-9E3F-EFB686E3CA20/VS2010SP1dvd1.iso)
jdk1.7 (to update more than 7 versions, the Jdk-7u45-windows-x64.exe used here)

Compile process:
1, compile FreeType, open Directory \freetype2\builds\windows\vc2010, directly with vs2010 open Freetype.sln compile.
Note the property settings:
Compile 64-bit:
Configuration Manager, Active solution Manager, Type or select the new Platform, x64
Configuration--Release multithreaded
Platform-x64
Output Directory-Rename ". \. \.. \.. \objs\win32\vc2010\ "to". \. \.. \.. \objs\win64\vc2010\ "
Intermediate Directory, rename ". \. \.. \.. \objs\release_mt\ "to". \. \.. \.. \objs\release_mt_64\ "
Target Name, rename to "FreeType"
Platform Toolset-WINDOWS7.1SDK

Compile 32-bit:
Configuration--Release multithreaded
Platform-Win32
Target Name, rename to "FreeType"
Platform Toolset-V100
This compiles 32 bits, which are compiled into Freetype.dll and Freetype.lib, respectively.
Create a folder in the Freetype2 directory lib, copy the two files (note: Compile openjdk8 Only use these two files).

2. Get OPENJDK Source code:
Open Msys, into the JDK8 directory just clone, my in the D packing directory, so

cd/d/jdk8sh ./get_source. SH

(Get the source code may be some slow, can not mercurial, directly download http://download.java.net/openjdk/jdk8, but not the latest)

Note:
JDK8U, it may be troublesome to obtain with SH/get_source.sh, for example, the Chinese operating system will report
Error:could not determine Mercurial version of ...
At this time add a system environment variable language, the value of en is possible.
If downloaded directly, the current package can only be downloaded to Jdk8u40,https://www.java.net/download/openjdk/jdk8u40/ri/openjdk-8u40-src-b25-10_feb_2015.zip , relatively older.

3, configure
Freetype2 I also put in the D packing directory, so

Bash./configure--with-freetype=. /freetype2--with-target-bits=

This time you will notice fewer commands to run

Install msys-zip  mingwinstall msys-unzip

There are other packages, what you need, what to do, and what to do when you run bash./configure will be prompted.

If Cpio.exe is missing, you can rename the Bsdcpio.exe to Cpio.exe.

4. Compiling openjdk8
Configure success, modify the D:\jdk8\build\windows-x86-normal-server-release\spec.gmk file in the value of jobs 1 (jobs?=1), jobs more compile does not pass, The description of jobs is referenced in readme-builds.html.
Run command

 make all

Or do not modify the file, directly

 make all jobs=1

After the compilation is successful, review the results
D:\jdk8\build\windows-x86-normal-server-release\images\j2sdk-image
The official test process, you can try to test the test.

64-bit windows8.1 compiled OPENJDK8