1 .. SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) 2 3 Building libbpf 4 =============== 5 6 libelf and zlib are internal dependencies of libbpf and thus are required to link 7 against and must be installed on the system for applications to work. 8 pkg-config is used by default to find libelf, and the program called 9 can be overridden with PKG_CONFIG. 10 11 If using pkg-config at build time is not desired, it can be disabled by 12 setting NO_PKG_CONFIG=1 when calling make. 13 14 To build both static libbpf.a and shared libbpf.so: 15 16 .. code-block:: bash 17 18 $ cd src 19 $ make 20 21 To build only static libbpf.a library in directory build/ and install them 22 together with libbpf headers in a staging directory root/: 23 24 .. code-block:: bash 25 26 $ cd src 27 $ mkdir build root 28 $ BUILD_STATIC_ONLY=y OBJDIR=build DESTDIR=root make install 29 30 To build both static libbpf.a and shared libbpf.so against a custom libelf 31 dependency installed in /build/root/ and install them together with libbpf 32 headers in a build directory /build/root/: 33 34 .. code-block:: bash 35 36 $ cd src 37 $ PKG_CONFIG_PATH=/build/root/lib64/pkgconfig DESTDIR=/build/root make
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