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+See src/README for the README that ships with snappy.
+
+Mozilla does not modify the actual snappy source with the exception of the
+'snappy-stubs-public.h' header. We have replaced its build system with our own.
+
+Snappy comes from:
+ https://github.com/google/snappy
+
+We are currently using revision: 1.1.9
+
+To upgrade to a newer version:
+ 1. Check out the new code using subversion.
+ 2. Update 'snappy-stubs-public.h' in this directory with any changes that were
+ made to 'snappy-stubs-public.h.in' in the new source.
+ 3. Copy the major/minor/patch versions from 'CMakeLists.txt' into
+ 'snappy-stubs-public.h'.
+ 4. Copy all source files from the new version into the src subdirectory. The
+ following are not needed:
+ - 'CMakeLists.txt', 'snappy_benchmark.cc', 'snappy_test_data.cc',
+ 'snappy_test_data.h', and 'snappy_test_tool.cc' files
+ - 'cmake' subdirectory
+ - 'docs' subdirectory
+ - 'testdata' subdirectory
+ - 'third_party' subdirectory
+ 5. Update the revision stamp in this file.
+