本文地址：http://m.survivalescaperooms.com/myresearch/p/build-openjdk7.html，轉載請注明源地址。

采用開源的OpenJDK版本，獲取其源碼的方式有兩種：

• 通Mercurial代碼版本管理工具從Repository中直接取得源碼，但是速度太慢，需要花費數小時

• 直接下載官方打包好的源碼包（推薦）

下載源碼openjdk-7u6-fcs-src-b24-28_aug_2012.zip，解壓，下載地址如下:

http://www.java.net/download/openjdk/jdk7u6/PRomoted/b24/openjdk-7u6-fcs-src-b24-28_aug_2012.zip

本次編譯采用的是64位的OS，編譯也是64位的JDK，內存至少需要512MB

（閱讀README和README-builds.html）

README-builds.html中包含有詳細的安裝信息，最好能完整的閱讀一下。

我的centos6.5安裝在vmware10上，安裝時使用最小化(Minimal)安裝

[root@localhost ~]# cat /etc/redhat-releaseCentOS release 6.5 (Final)[root@localhost ~]# uname -mx86_64[root@localhost ~]# uname -r2.6.32-431.el6.x86_64

配置更新源

cd /etc/yum.repos.d/curl http://mirrors.163.com/.help/CentOS6-Base-163.repo > CentOS6-Base-163.repo 

當前wget還不能用

#wget http://mirrors.163.com/.help/CentOS6-Base-163.repomv CentOS-Base.repo CentOS-Base.repo.bakmv CentOS6-Base-163.repo CentOS-Base.repoyum makecacheyum -y groupinstall 'base'yum -y install make

安裝jdk必備軟件包:

yum -y install alsa-lib-develyum -y install cups-develyum -y install libXi-develyum -y install gcc gcc-c++yum -y install libX*

上傳或下載相關文件到/application/tools

mkdir -p /application/toolscd /application/tools

上傳或下載下列相關文件到/application/tools

freetype-2.3.12.tar.gz 下載地址：http://sourceforge.net/projects/freetype/files/freetype2/

openjdk-7u6-fcs-src-b24-28_aug_2012.zip 下載地址前文

apache-ant-1.7.1-bin.zip 下載地址：http://archive.apache.org/dist/ant/binaries/　　

jdk-6u26-linux-x64.bin 下載地址：http://www.Oracle.com/technetwork/java/javase/downloads/java-archive-downloads-javase6-419409.html#jdk-6u26-oth-JPR

編譯安裝freetype：

tar -xzf freetype-2.3.12.tar.gzcd freetype-2.3.12./configure makemake install

安裝JDK：

解壓縮jdk-6u26-linux-i586.bin到application/java/目錄下

設置環境變量如下：

#set java environmentJAVA_HOME=/application/java/jdkexport JRE_HOME=/application/java/jdk/jreexport CLASSPATH=.:$JAVA_HOME/lib:$JRE_HOME/lib:$CLASSPATHexport PATH=$JAVA_HOME/bin:$JRE_HOME/bin:$PATH

安裝ant：

cd /application/tools/unzip apache-ant-1.7.1-bin.zip ln -s /application/tools/apache-ant-1.7.1/bin/ant /usr/bin/ant

檢查java與ant：

[root@localhost ~]# java -versionjava version "1.6.0_26"Java(TM) SE Runtime Environment (build 1.6.0_26-b03)Java HotSpot(TM) 64-Bit Server VM (build 20.1-b02, mixed mode)[root@localhost ~]# antBuildfile: build.xml does not exist!Build failed

nset CLASSPATHunset JAVA_HOMEexport LANG=Cexport ALT_BOOTDIR=/application/java/jdkexport ANT_HOME=/application/tools/apache-ant-1.8.1/export ALT_FREETYPE_LIB_PATH=/usr/local/libexport SKIP_DEBUG_BUILD=falseexport SKIP_FASTDEBUG_BUILD=trueexport DEBUG_NAME=debugexport ALT_FREETYPE_HEADERS_PATH=/usr/local/include/freetype2

[root@localhost tools]# cd openjdk[root@localhost openjdk]# pwd/application/tools/openjdk[root@localhost openjdk]# make sanity

……

OpenJDK-specific settings: FREETYPE_HEADERS_PATH = /usr/local/include/freetype2 ALT_FREETYPE_HEADERS_PATH = /usr/local/include/freetype2 FREETYPE_LIB_PATH = /usr/local/lib ALT_FREETYPE_LIB_PATH = /usr/local/lib 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 = /application/java/jdk ALT_PREVIOUS_RELEASE_IMAGE =

Sanity check passed.

執行下列命令：

[root@localhost openjdk]# make all

Build times ----------Target debug_buildStart 2015-05-05 09:34:37End 2015-05-05 10:24:3300:05:23 corba00:10:49 hotspot00:00:55 jaxp00:01:07 jaxws00:30:05 jdk00:01:36 langtools00:49:56 TOTAL-------------------------make[1]: Leaving directory `/application/tools/openjdk'

查看成果：

[root@localhost openjdk]#  ./build/linux-amd64/bin/java -version

openjdk version "1.7.0-internal-debug"OpenJDK Runtime Environment (build 1.7.0-internal-debug-root_2015_05_05_09_15-b00)OpenJDK 64-Bit Server VM (build 23.2-b09-jvmg, mixed mode)

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