mcrouter installation

##Automatic installation

TODO!!!: use script from D1377312 (once it is committed).

##Manual installation

###Install

 #prime sudo
 sudo echo

 sudo yum install libopenssl-devel libcap-devel libevent-devel boost-devel \
 gtest-devel glog-devel gflags-devel snappy-devel zlib scons flex bison \
 krb5-devel binutils-devel

###Download and install

• latest autotools Simplest way is to use this script: http://git.savannah.gnu.org/cgit/coreutils.git/tree/scripts/autotools-install

• python 2.7

• folly Follow instructions from https://github.com/facebook/folly

• fbthrift

• Download fbthrift from https://github.com/facebook/fbthrift. If you have errors regarding 'double-conversion' missing, add -ldouble-conversion to AC_SUBST() macro in thrift/configure.ac

• If you have folly/String.h not found errors, add -I/fbcode/folly to CPPFLAGS:

 CPPFLAGS="-I~/fbcode/folly" ./configure

• Build and install it. In thrift subfolder run

 autoreconf --install
 ./configure
 make
 sudo make install

###Build mcrouter

Clone mcrouter source code from https://github.com/facebook/mcrouter. In mcrouter folder run

 autoreconf --install
 ./configure
 make

###Run unit tests (optional)

Run

 make check

If you have "symbol not found" errors from gtest, build it and put libgtest.a/libgtestmain.a into you LD_LIBRARY_PATH. To build gtest:

• load it from http://googletest.googlecode.com/files/gtest-1.6.0.zip
• in make subfolder run

 make

• Rename gtest.a to libgtest.a; gtest_main.a to libgtestmain.a
• Don't forget to add libgtest.a and libgtestmain.a to your LD_LIBRARY_PATH