/usr/include/ is in rapidjson-dev 0.12~git20141031-3.
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/usr/include/rapidjson/
/usr/include/rapidjson/memorystream.h
/usr/include/rapidjson/filestream.h
/usr/include/rapidjson/encodings.h
/usr/include/rapidjson/error/
/usr/include/rapidjson/error/error.h
/usr/include/rapidjson/error/en.h
/usr/include/rapidjson/filereadstream.h
/usr/include/rapidjson/msinttypes/
/usr/include/rapidjson/msinttypes/stdint.h
/usr/include/rapidjson/msinttypes/inttypes.h
/usr/include/rapidjson/filewritestream.h
/usr/include/rapidjson/encodedstream.h
/usr/include/rapidjson/prettywriter.h
/usr/include/rapidjson/stringbuffer.h
/usr/include/rapidjson/allocators.h
/usr/include/rapidjson/document.h
/usr/include/rapidjson/memorybuffer.h
/usr/include/rapidjson/writer.h
/usr/include/rapidjson/rapidjson.h
/usr/include/rapidjson/reader.h
/usr/include/rapidjson/internal/
/usr/include/rapidjson/internal/meta.h
/usr/include/rapidjson/internal/itoa.h
/usr/include/rapidjson/internal/dtoa.h
/usr/include/rapidjson/internal/pow10.h
/usr/include/rapidjson/internal/stack.h
/usr/include/rapidjson/internal/strfunc.h