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authorYu Jiung <jiung.yu@samsung.com>2016-11-09 02:18:45 (GMT)
committerYu Jiung <jiung.yu@samsung.com>2016-11-09 02:18:55 (GMT)
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+c-ares
+======
+
+[![Build Status](https://travis-ci.org/c-ares/c-ares.svg?branch=master)](https://travis-ci.org/c-ares/c-ares)
+[![Windows Build Status](https://ci.appveyor.com/api/projects/status/03i7151772eq3wn3/branch/master?svg=true)](https://ci.appveyor.com/project/c-ares/c-ares)
+[![Coverage Status](https://coveralls.io/repos/c-ares/c-ares/badge.svg?branch=master&service=github)](https://coveralls.io/github/c-ares/c-ares?branch=master)
+
+This is c-ares, an asynchronous resolver library. It is intended for
+applications which need to perform DNS queries without blocking, or need to
+perform multiple DNS queries in parallel. The primary examples of such
+applications are servers which communicate with multiple clients and programs
+with graphical user interfaces.
+
+The full source code is available in the 'c-ares' release archives, and in a
+git repository: http://github.com/c-ares/c-ares
+
+If you find bugs, correct flaws, have questions or have comments in general in
+regard to c-ares (or by all means the original ares too), get in touch with us
+on the c-ares mailing list: http://cool.haxx.se/mailman/listinfo/c-ares
+
+c-ares is of course distributed under the same MIT-style license as the
+original ares.
+
+You'll find all c-ares details and news here:
+ http://c-ares.haxx.se/
+
+
+Notes for c-ares hackers
+------------------------
+
+* The distributed `ares_build.h` file is only intended to be used on systems
+ which can not run the also distributed configure script.
+
+* The distributed `ares_build.h` file is generated as a copy of `ares_build.h.dist`
+ when the c-ares source code distribution archive file is originally created.
+
+* If you check out from git on a non-configure platform, you must run the
+ appropriate `buildconf*` script to set up `ares_build.h` and other local files
+ before being able to compile the library.
+
+* On systems capable of running the `configure` script, the `configure` process
+ will overwrite the distributed `ares_build.h` file with one that is suitable
+ and specific to the library being configured and built, this new file is
+ generated from the `ares_build.h.in` template file.
+
+* If you intend to distribute an already compiled c-ares library you **MUST**
+ also distribute along with it the generated `ares_build.h` which has been
+ used to compile it. Otherwise the library will be of no use for the users of
+ the library that you have built. It is **your** responsibility to provide this
+ file. No one at the c-ares project can know how you have built the library.
+
+* File `ares_build.h` includes platform and configuration dependent info,
+ and must not be modified by anyone. Configure script generates it for you.
+
+* We cannot assume anything else but very basic compiler features being
+ present. While c-ares requires an ANSI C compiler to build, some of the
+ earlier ANSI compilers clearly can't deal with some preprocessor operators.
+
+* Newlines must remain unix-style for older compilers' sake.
+
+* Comments must be written in the old-style /* unnested C-fashion */
+
+* Try to keep line lengths below 80 columns.