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+## Building Node.js
+
+Depending on what platform or features you require the build process may
+differ slightly. After you've successfully built a binary, running the
+test suite to validate that the binary works as intended is a good next step.
+
+If you consistently can reproduce a test failure, search for it in the
+[Node.js issue tracker](https://github.com/nodejs/node/issues) or
+file a new issue.
+
+
+### Unix / Macintosh
+
+Prerequisites:
+
+* `gcc` and `g++` 4.8 or newer, or
+* `clang` and `clang++` 3.4 or newer
+* Python 2.6 or 2.7
+* GNU Make 3.81 or newer
+* libexecinfo (FreeBSD and OpenBSD only)
+
+```text
+$ ./configure
+$ make
+$ [sudo] make install
+```
+
+If your Python binary is in a non-standard location or has a
+non-standard name, run the following instead:
+
+```text
+$ export PYTHON=/path/to/python
+$ $PYTHON ./configure
+$ make
+$ [sudo] make install
+```
+
+To run the tests:
+
+```text
+$ make test
+```
+
+To build the documentation:
+
+```text
+$ make doc
+```
+
+To read the documentation:
+
+```text
+$ man doc/node.1
+```
+
+To test if Node.js was built correctly:
+
+```
+$ node -e "console.log('Hello from Node.js ' + process.version)"
+```
+
+
+### Windows
+
+Prerequisites:
+
+* [Python 2.6 or 2.7](https://www.python.org/downloads/)
+* Visual Studio 2013 / 2015, all editions including the Community edition, or
+* Visual Studio Express 2013 / 2015 for Desktop
+* Basic Unix tools required for some tests,
+  [Git for Windows](http://git-scm.com/download/win) includes Git Bash
+  and tools which can be included in the global `PATH`.
+
+```text
+> vcbuild nosign
+```
+
+To run the tests:
+
+```text
+> vcbuild test
+```
+
+To test if Node.js was built correctly:
+
+```
+$ node -e "console.log('Hello from Node.js ' + process.version)"
+```
+
+### Android / Android based devices, aka. Firefox OS
+
+Be sure you have downloaded and extracted [Android NDK]
+(https://developer.android.com/tools/sdk/ndk/index.html)
+before in a folder. Then run:
+
+```
+$ ./android-configure /path/to/your/android-ndk
+$ make
+```
+
+
+### `Intl` (ECMA-402) support:
+
+[Intl](https://github.com/nodejs/node/wiki/Intl) support is not
+enabled by default.
+
+
+#### "small" (English only) support
+
+This option will build with "small" (English only) support, but
+the full `Intl` (ECMA-402) APIs.  With `--download=all` it will
+download the ICU library as needed.
+
+##### Unix / Macintosh:
+
+```text
+$ ./configure --with-intl=small-icu --download=all
+```
+
+##### Windows:
+
+```text
+> vcbuild small-icu download-all
+```
+
+The `small-icu` mode builds with English-only data. You can add full
+data at runtime.
+
+*Note:* more docs are on
+[the node wiki](https://github.com/nodejs/node/wiki/Intl).
+
+#### Build with full ICU support (all locales supported by ICU):
+
+With the `--download=all`, this may download ICU if you don't have an
+ICU in `deps/icu`.
+
+##### Unix / Macintosh:
+
+```text
+$ ./configure --with-intl=full-icu --download=all
+```
+
+##### Windows:
+
+```text
+> vcbuild full-icu download-all
+```
+
+#### Building without Intl support
+
+The `Intl` object will not be available. This is the default at
+present, so this option is not normally needed.
+
+##### Unix / Macintosh:
+
+```text
+$ ./configure --with-intl=none
+```
+
+##### Windows:
+
+```text
+> vcbuild intl-none
+```
+
+#### Use existing installed ICU (Unix / Macintosh only):
+
+```text
+$ pkg-config --modversion icu-i18n && ./configure --with-intl=system-icu
+```
+
+If you are cross compiling, your `pkg-config` must be able to supply a path
+that works for both your host and target environments.
+
+#### Build with a specific ICU:
+
+You can find other ICU releases at
+[the ICU homepage](http://icu-project.org/download).
+Download the file named something like `icu4c-**##.#**-src.tgz` (or
+`.zip`).
+
+##### Unix / Macintosh
+
+```text
+# from an already-unpacked ICU:
+$ ./configure --with-intl=[small-icu,full-icu] --with-icu-source=/path/to/icu
+
+# from a local ICU tarball
+$ ./configure --with-intl=[small-icu,full-icu] --with-icu-source=/path/to/icu.tgz
+
+# from a tarball URL
+$ ./configure --with-intl=full-icu --with-icu-source=http://url/to/icu.tgz
+```
+
+##### Windows
+
+First unpack latest ICU to `deps/icu`
+[icu4c-**##.#**-src.tgz](http://icu-project.org/download) (or `.zip`)
+as `deps/icu` (You'll have: `deps/icu/source/...`)
+
+```text
+> vcbuild full-icu
+```
+
+## Building Node.js with FIPS-compliant OpenSSL
+
+NOTE: Windows is not yet supported
+
+It is possible to build Node.js with
+[OpenSSL FIPS module](https://www.openssl.org/docs/fips/fipsnotes.html).
+
+**Note**: building in this way does **not** allow you to claim that the
+runtime is FIPS 140-2 validated. Instead you can indicate that the runtime
+uses a validated module. See the [security policy](http://csrc.nist.gov/groups/STM/cmvp/documents/140-1/140sp/140sp1747.pdf)
+page 60 for more details. In addition, the validation for the underlying module
+is only valid if it is deployed in accordance with its [security policy](http://csrc.nist.gov/groups/STM/cmvp/documents/140-1/140sp/140sp1747.pdf).
+If you need FIPS validated cryptography it is recommended that you read both
+the [security policy](http://csrc.nist.gov/groups/STM/cmvp/documents/140-1/140sp/140sp1747.pdf)
+and [user guide](https://openssl.org/docs/fips/UserGuide-2.0.pdf).
+
+### Instructions
+
+1. Obtain a copy of openssl-fips-x.x.x.tar.gz.
+   To comply with the security policy you must ensure the path
+   through which you get the file complies with the requirements
+   for a "secure installation" as described in section 6.6 in
+   the [user guide](https://openssl.org/docs/fips/UserGuide-2.0.pdf).
+   For evaluation/experimentation you can simply download and verify
+   `openssl-fips-x.x.x.tar.gz` from https://www.openssl.org/source/
+2. Extract source to `openssl-fips` folder and `cd openssl-fips`
+3. `./config`
+4. `make`
+5. `make install`
+   (NOTE: to comply with the security policy you must use the exact
+   commands in steps 3-5 without any additional options as per
+   Appendix A in the [security policy](http://csrc.nist.gov/groups/STM/cmvp/documents/140-1/140sp/140sp1747.pdf).
+   The only exception is that `./config no-asm` can be
+   used in place of `./config`, and the FIPSDIR environment variable
+   may be used to specify a non-standard install folder for the
+   validated module, as per User Guide sections 4.2.1, 4.2.2, and 4.2.3.
+6. Get into Node.js checkout folder
+7. `./configure --openssl-fips=/path/to/openssl-fips/installdir`
+   For example on ubuntu 12 the installation directory was
+   /usr/local/ssl/fips-2.0
+8. Build Node.js with `make -j`
+9. Verify with `node -p "process.versions.openssl"` (`1.0.2a-fips`)