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.. SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
Building libbpf
===============
libelf and zlib are internal dependencies of libbpf and thus are required to link
against and must be installed on the system for applications to work.
pkg-config is used by default to find libelf, and the program called
can be overridden with PKG_CONFIG.
If using pkg-config at build time is not desired, it can be disabled by
setting NO_PKG_CONFIG=1 when calling make.
To build both static libbpf.a and shared libbpf.so:
.. code-block:: bash
$ cd src
$ make
To build only static libbpf.a library in directory build/ and install them
together with libbpf headers in a staging directory root/:
.. code-block:: bash
$ cd src
$ mkdir build root
$ BUILD_STATIC_ONLY=y OBJDIR=build DESTDIR=root make install
To build both static libbpf.a and shared libbpf.so against a custom libelf
dependency installed in /build/root/ and install them together with libbpf
headers in a build directory /build/root/:
.. code-block:: bash
$ cd src
$ PKG_CONFIG_PATH=/build/root/lib64/pkgconfig DESTDIR=/build/root make
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