Folly: Facebook Open-source Library

Folly is an open-source C++ library developed and used at Facebook.

###Get Started

Folly is published on Github at https://github.com/facebook/folly; for discussions, there is a Google group at https://groups.google.com/d/forum/facebook-folly.

Dependencies

folly requires gcc 4.8+ and a version of boost compiled with C++11 support.

Please download googletest from https://googletest.googlecode.com/files/gtest-1.7.0.zip and unzip it in the folly/test subdirectory.

Ubuntu 12.04

This release is old, requiring many upgrades. However, since Travis CI runs on 12.04, folly/build/deps_ubuntu_12.04.sh is provided, and upgrades all the required packages.

Ubuntu 13.10

The following packages are required (feel free to cut and paste the apt-get command below):

sudo apt-get install \
    g++ \
    automake \
    autoconf \
    autoconf-archive \
    libtool \
    libboost-all-dev \
    libevent-dev \
    libdouble-conversion-dev \
    libgoogle-glog-dev \
    libgflags-dev \
    liblz4-dev \
    liblzma-dev \
    libsnappy-dev \
    make \
    zlib1g-dev \
    binutils-dev \
    libjemalloc-dev \
    libssl-dev

Ubuntu 14.04 LTS

The packages listed above for Ubuntu 13.10 are required, as well as:

sudo apt-get install \
    libiberty-dev

The above packages are sufficient for Ubuntu 13.10 and Ubuntu 14.04.

In the folly directory, run

  autoreconf -ivf
  ./configure
  make
  make check
  sudo make install

OS X (Homebrew)

folly is available as a Formula and releases may be built via brew install folly.

You may also use folly/build/bootstrap-osx-homebrew.sh to build against master:

  cd folly
  ./build/bootstrap-osx-homebrew.sh
  make
  make check

OS X (MacPorts)

Install the required packages from MacPorts:

  sudo port install \
    autoconf \
    automake \
    boost \
    gflags \
    git \
    google-glog \
    libevent \
    libtool \
    lz4 \
    lzma \
    scons \
    snappy \
    zlib

Download and install double-conversion:

  git clone https://github.com/google/double-conversion.git
  cd double-conversion
  cmake -DBUILD_SHARED_LIBS=ON .
  make
  sudo make install

Download and install folly with the parameters listed below:

  git clone https://github.com/facebook/folly.git
  cd folly/folly
  autoreconf -ivf
  ./configure CPPFLAGS="-I/opt/local/include" LDFLAGS="-L/opt/local/lib"
  make
  sudo make install

Other Linux distributions

• double-conversion (https://github.com/google/double-conversion)

  Download and build double-conversion. You may need to tell configure where to find it.

  [double-conversion/] ln -s src double-conversion

  [folly/] ./configure LDFLAGS=-L$DOUBLE_CONVERSION_HOME/ CPPFLAGS=-I$DOUBLE_CONVERSION_HOME/

  [folly/] LD_LIBRARY_PATH=$DOUBLE_CONVERSION_HOME/ make

• additional platform specific dependencies:

  Fedora 21 64-bit

  • gcc
  • gcc-c++
  • autoconf
  • autoconf-archive
  • automake
  • boost-devel
  • libtool
  • lz4-devel
  • lzma-devel
  • snappy-devel
  • zlib-devel
  • glog-devel
  • gflags-devel
  • scons
  • double-conversion-devel
  • openssl-devel
  • libevent-devel