diff --git a/Makefile b/Makefile
index 5d7ad22e1..45b7d5eb5 100644
--- a/Makefile
+++ b/Makefile
@@ -1002,7 +1002,7 @@ libbz2.a:
 	-rm -rf bzip2-1.0.6
 	curl -O  http://www.bzip.org/1.0.6/bzip2-1.0.6.tar.gz
 	tar xvzf bzip2-1.0.6.tar.gz
-	cd bzip2-1.0.6 && make CFLAGS='-fPIC -Wall -Winline -O2 -g -D_FILE_OFFSET_BITS=64'
+	cd bzip2-1.0.6 && make CFLAGS='-fPIC -O2 -g -D_FILE_OFFSET_BITS=64'
 	cp bzip2-1.0.6/libbz2.a .
 
 libsnappy.a:
@@ -1046,7 +1046,7 @@ rocksdbjavastatic: $(java_libobjects) libz.a libbz2.a libsnappy.a liblz4.a
 rocksdbjavastaticrelease: rocksdbjavastatic
 	cd java/crossbuild && vagrant destroy -f && vagrant up linux32 && vagrant halt linux32 && vagrant up linux64 && vagrant halt linux64
 	cd java;jar -cf target/$(ROCKSDB_JAR_ALL) HISTORY*.md
-	cd java/target;jar -uf $(ROCKSDB_JAR_ALL) librocksdbjni-*.so librocksdbjni-*.jnilib
+	cd java;jar -uf target/$(ROCKSDB_JAR_ALL) librocksdbjni-*.so librocksdbjni-*.jnilib
 	cd java/target/classes;jar -uf ../$(ROCKSDB_JAR_ALL) org/rocksdb/*.class org/rocksdb/util/*.class
 
 rocksdbjavastaticpublish: rocksdbjavastaticrelease
diff --git a/java/crossbuild/Vagrantfile b/java/crossbuild/Vagrantfile
index c4b1b1df2..8a52b9261 100644
--- a/java/crossbuild/Vagrantfile
+++ b/java/crossbuild/Vagrantfile
@@ -22,4 +22,5 @@ Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
   config.vm.provision :shell, path: "build-linux-centos.sh"
   config.vm.synced_folder "../", "/rocksdb-build"
   config.vm.synced_folder "../..", "/rocksdb", type: "rsync"
+  config.vm.boot_timeout = 1200
 end
diff --git a/java/crossbuild/build-linux-centos.sh b/java/crossbuild/build-linux-centos.sh
index 158303069..f2b79480d 100755
--- a/java/crossbuild/build-linux-centos.sh
+++ b/java/crossbuild/build-linux-centos.sh
@@ -1,14 +1,15 @@
 #!/usr/bin/env bash
 # install all required packages for rocksdb that are available through yum
 ARCH=$(uname -i)
-sudo yum -y install java-1.7.0-openjdk-devel.$ARCH zlib zlib-devel bzip2 bzip2-devel
+sudo yum -y install openssl java-1.7.0-openjdk-devel.$ARCH zlib zlib-devel bzip2 bzip2-devel
 
-# install gcc/g++ 4.7 via CERN (http://linux.web.cern.ch/linux/devtoolset/)
+# install gcc/g++ 4.8.2 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 
+sudo yum -y install devtoolset-2
+
 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
+tar xvfz gflags-1.6.tar.gz; cd gflags-1.6; scl enable devtoolset-2 ./configure; scl enable devtoolset-2 make; sudo make install
 export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib
 
 # set java home so we can build rocksdb jars
@@ -16,8 +17,8 @@ export JAVA_HOME=/usr/lib/jvm/java-1.7.0
 
 # build rocksdb
 cd /rocksdb
-scl enable devtoolset-1.1 'make jclean clean'
-scl enable devtoolset-1.1 'make -j 4 rocksdbjavastatic'
+scl enable devtoolset-2 'make jclean clean'
+scl enable devtoolset-2 'make rocksdbjavastatic'
 cp /rocksdb/java/target/librocksdbjni-* /rocksdb-build
 cp /rocksdb/java/target/rocksdbjni-* /rocksdb-build