commit ce0d620a03c494c437d989190fe321cc4b9b8b20
Author: Felix Yan <felixonmars@archlinux.org>
Date:   Tue Jun 6 19:16:36 2017 +0800

    Allow to build with shared brotli
    
    It would be nice to allow building with shared brotli since we have one
    in the repositories. This commit would not break the default
    installation.

diff --git a/.travis.yml b/.travis.yml
index 3498f2b..2b3b7d9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,12 +13,19 @@ cache:
   pip: true
   directories:
     - $HOME/.ccache
-    
+
+matrix:
+  include:
+    - python: "3.6"
+    - env: USE_SHARED_BROTLI=1
+    - sudo: true
+
 env:
   global:
       - PATH="/usr/lib/ccache:$PATH"    
 
 install:
+  - "if [[ $USE_SHARED_BROTLI == 1 ]]; then mkdir build; cd build; cmake ../libbrotli -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_INSTALL_LIBDIR=/usr/lib; make; sudo make install; cd ..; fi"
   - "pip install -U pip 'setuptools!=26.*'"
   - "pip install ."
   - "pip install -r test_requirements.txt"
diff --git a/setup.py b/setup.py
index 992261a..90d4a8b 100644
--- a/setup.py
+++ b/setup.py
@@ -1,4 +1,5 @@
 #!/usr/bin/env python
+import os
 from setuptools import find_packages, setup
 from setuptools.command.build_ext import build_ext
 
@@ -22,37 +23,10 @@ class BuildClibBeforeExt(build_ext):
         self.run_command("build_clib")
         build_ext.run(self)
 
-
-setup(
-    name="brotlipy",
-    version="0.7.0",
-
-    description="Python binding to the Brotli library",
-    long_description=long_description,
-    url="https://github.com/python-hyper/brotlipy/",
-    license="MIT",
-
-    author="Cory Benfield",
-    author_email="cory@lukasa.co.uk",
-
-    setup_requires=[
-        "cffi>=1.0.0",
-    ],
-    install_requires=[
-        "cffi>=1.0.0",
-    ],
-    extras_require={
-        ':python_version == "2.7" or python_version == "3.3"': ['enum34>=1.0.4, <2'],
-    },
-
-    cffi_modules=["src/brotli/build.py:ffi"],
-
-    packages=find_packages('src'),
-    package_dir={'': 'src'},
-
-    ext_package="brotli",
-
-    libraries=[
+libraries = []
+USE_SHARED_BROTLI = os.environ.get("USE_SHARED_BROTLI")
+if USE_SHARED_BROTLI != "1":
+    libraries = [
         ("libbrotli", {
             "include_dirs": [
                 "libbrotli/include",
@@ -84,7 +58,38 @@ setup(
                 'libbrotli/enc/entropy_encode.c'
             ]
         }),
+    ]
+
+setup(
+    name="brotlipy",
+    version="0.7.0",
+
+    description="Python binding to the Brotli library",
+    long_description=long_description,
+    url="https://github.com/python-hyper/brotlipy/",
+    license="MIT",
+
+    author="Cory Benfield",
+    author_email="cory@lukasa.co.uk",
+
+    setup_requires=[
+        "cffi>=1.0.0",
+    ],
+    install_requires=[
+        "cffi>=1.0.0",
     ],
+    extras_require={
+        ':python_version == "2.7" or python_version == "3.3"': ['enum34>=1.0.4, <2'],
+    },
+
+    cffi_modules=["src/brotli/build.py:ffi"],
+
+    packages=find_packages('src'),
+    package_dir={'': 'src'},
+
+    ext_package="brotli",
+
+    libraries=libraries,
 
     zip_safe=False,
 
diff --git a/src/brotli/build.py b/src/brotli/build.py
index 562376e..0e1bb80 100644
--- a/src/brotli/build.py
+++ b/src/brotli/build.py
@@ -1,10 +1,16 @@
 # -*- coding: utf-8 -*-
+import os
 import sys
 
 from cffi import FFI
 ffi = FFI()
 
-libraries = ['libbrotli']
+USE_SHARED_BROTLI = os.environ.get("USE_SHARED_BROTLI")
+if USE_SHARED_BROTLI != "1":
+    libraries = ['libbrotli']
+else:
+    libraries = ['brotlienc', 'brotlidec']
+
 if 'win32' not in str(sys.platform).lower():
     libraries.append('stdc++')