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63 lines
2.3 KiB
ReStructuredText
63 lines
2.3 KiB
ReStructuredText
The libyang library can be installed from third-party packages available `here
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<https://ci1.netdef.org/browse/LIBYANG-YANGRELEASE/latestSuccessful/artifact>`_.
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Note: the libyang dev/devel packages need to be installed in addition
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to the libyang core package in order to build FRR successfully.
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For example, for CentOS 7.x:
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.. code-block:: shell
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wget https://ci1.netdef.org/artifact/LIBYANG-YANGRELEASE/shared/build-1/CentOS-7-x86_64-Packages/libyang-0.16.46-0.x86_64.rpm
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wget https://ci1.netdef.org/artifact/LIBYANG-YANGRELEASE/shared/build-1/CentOS-7-x86_64-Packages/libyang-devel-0.16.46-0.x86_64.rpm
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sudo rpm -i libyang-0.16.46-0.x86_64.rpm libyang-devel-0.16.46-0.x86_64.rpm
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or Ubuntu 18.04:
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.. code-block:: shell
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wget https://ci1.netdef.org/artifact/LIBYANG-YANGRELEASE/shared/build-1/Ubuntu-18.04-x86_64-Packages/libyang-dev_0.16.46_amd64.deb
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wget https://ci1.netdef.org/artifact/LIBYANG-YANGRELEASE/shared/build-1/Ubuntu-18.04-x86_64-Packages/libyang_0.16.46_amd64.deb
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sudo apt install libpcre3-dev
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sudo dpkg -i libyang-dev_0.16.46_amd64.deb libyang_0.16.46_amd64.deb
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Alternatively, libyang can be built and installed manually by following
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the steps below:
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.. code-block:: shell
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git clone https://github.com/opensourcerouting/libyang
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cd libyang
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git checkout -b tmp origin/tmp
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mkdir build; cd build
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cmake -DENABLE_LYD_PRIV=ON ..
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make
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sudo make install
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When building libyang on CentOS 6, it's also necessary to pass the
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``-DENABLE_CACHE=OFF`` parameter to cmake.
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Note: please check the `libyang build requirements
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<https://github.com/CESNET/libyang/blob/master/README.md#build-requirements>`_
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first.
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Libyang uses loadable libraries an YANG modules. It supports
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environment variables to allow overriding the load paths for each of
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these. With FRR, this override currently must be done at the time of
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running FRR's configure command using new options. The new options are:
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.. code-block:: shell
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--with-yangmodelsdir=DIR
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yang models directory (${datarootdir}/yang)
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--with-libyang-pluginsdir=DIR
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yangmodule plugins directory
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(${libdir}/frr/libyang_plugins)
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an example which uses the compile directory is:
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.. code-block:: shell
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./configure --with-libyang-pluginsdir="`pwd`/yang/libyang_plugins/.libs" \
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--with-yangmodelsdir="`pwd`/yang"
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