add centos 5.6 build instead of ubuntu.

Makefile

@@ -554,7 +554,11 @@ rocksdbjavastatic: libz.a libbz2.a libsnappy.a
 	
 
 rocksdbjavastaticrelease: rocksdbjavastatic
-	cd java/crossbuild && vagrant destroy -f && vagrant up
+	cd java/crossbuild && vagrant destroy -f
+  vagrant up linux32
+  vagrant halt linux32
+  vagrant up linux64
+  vagrant halt linux64
 	cd java;jar -cf $(ROCKSDB_JAR_ALL) org/rocksdb/*.class org/rocksdb/util/*.class HISTORY*.md librocksdbjni-*.so librocksdbjni-*.jnilib
 
 rocksdbjava:

java/crossbuild/Vagrantfile

@@ -7,13 +7,11 @@ VAGRANTFILE_API_VERSION = "2"
 Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
 
   config.vm.define "linux32" do |linux32|
-    linux32.vm.box = "ubuntu/trusty32"
-    linux32.vm.provision :shell, path: "build-linux.sh"
+    linux32.vm.box = "hansode/centos-5.6-i386"
   end
 
   config.vm.define "linux64" do |linux64|
-    linux64.vm.box = "ubuntu/trusty64"
-    linux64.vm.provision :shell, path: "build-linux.sh"
+    linux64.vm.box = "hansode/centos-5.6-x86_64"
   end
 
   config.vm.provider "virtualbox" do |v|
@@ -21,6 +19,7 @@ Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
     v.cpus = 4
   end
 
+  config.vm.provision :shell, path: "build-linux-centos.sh"
   config.vm.synced_folder "../", "/rocksdb-build"
   config.vm.synced_folder "../..", "/rocksdb", type: "rsync"
 end

java/crossbuild/build-linux-centos.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+# install all required packages for rocksdb that are available through yum
+ARCH=$(uname -i)
+sudo yum -y install java-1.6.0-openjdk-devel.$ARCH zlib zlib-devel bzip2 bzip2-devel
+
+# install gcc/g++ 4.7 via CERN (http://linux.web.cern.ch/linux/devtoolset/)
+sudo wget -O /etc/yum.repos.d/slc5-devtoolset.repo http://linuxsoft.cern.ch/cern/devtoolset/slc5-devtoolset.repo
+sudo wget -O /etc/pki/rpm-gpg/RPM-GPG-KEY-cern http://ftp.mirrorservice.org/sites/ftp.scientificlinux.org/linux/scientific/51/i386/RPM-GPG-KEYs/RPM-GPG-KEY-cern
+sudo yum -y install devtoolset-1.1 
+wget http://gflags.googlecode.com/files/gflags-1.6.tar.gz
+tar xvfz gflags-1.6.tar.gz; cd gflags-1.6; scl enable devtoolset-1.1 ./configure; scl enable devtoolset-1.1 make; sudo make install
+export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib
+
+# set java home so we can build rocksdb jars
+export JAVA_HOME=/usr/lib/jvm/java-1.6.0
+
+# build rocksdb
+cd /rocksdb
+scl enable devtoolset-1.1 'make jclean clean'
+scl enable devtoolset-1.1 'make -j 4 rocksdbjavastatic'
+cp /rocksdb/java/librocksdbjni-* /rocksdb-build
+cp /rocksdb/java/rocksdbjni-* /rocksdb-build
+