sudo apt-get install gflags
-Compiling the source code
+Compiling the source code with CMake
=========================
The build system of gflags is since version 2.1 based on [CMake](http://cmake.org).
GFLAGS_INCLUDE_DIR | Name of headers installation directory relative to CMAKE_INSTALL_PREFIX.
LIBRARY_INSTALL_DIR | Name of library installation directory relative to CMAKE_INSTALL_PREFIX.
INSTALL_HEADERS | Request installation of public header files.
+
+Using gflags with [Bazel](http://bazel.io)
+=========================
+
+To use gflags in a Bazel project, map it in as an external dependency by editing
+your WORKSPACE file:
+
+ git_repository(
+ name = "gflags_git",
+ commit = "", # Use the current HEAD commit
+ remote = "https://github.com/gflags/gflags.git",
+ )
+
+ bind(
+ name = "gflags",
+ actual = "@gflags_git//:gflags",
+ )
+
+You can then add `//external:gflags` to the `deps` section of a `cc_binary` or
+`cc_library` rule, and `#include <gflags/gflags.h>` to include it in your source
+code.