ovs/lib/libopenvswitch.pc.in

prefix=@prefix@
exec_prefix=@exec_prefix@
libdir=@libdir@
includedir=@includedir@

Name: libopenvswitch
Description: Open vSwitch library
Version: @VERSION@
Libs: -L${libdir} -lopenvswitch
Libs.private: @LIBS@ @SSL_LIBS@ @CAPNG_LDADD@
Cflags: -I${includedir}
lib: Add support for pkgconfig for libopenvswitch. Add rule to generate pkgconfig .pc file from configure. Install pkg-config file to $(libdir)/pkgconfig Signed-off-by: Rob Adams <readams@readams.net> Acked-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: Ben Pfaff <blp@nicira.com> 2014-11-13 12:28:41 +01:00			`prefix=@prefix@`
			`exec_prefix=@exec_prefix@`
			`libdir=@libdir@`
			`includedir=@includedir@`

			`Name: libopenvswitch`
			`Description: Open vSwitch library`
			`Version: @VERSION@`
			`Libs: -L${libdir} -lopenvswitch`
netdev-afxdp: Allow building with libxdp and newer libbpf. AF_XDP functions was deprecated in libbpf 0.7 and moved to libxdp. Functions bpf_get/set_link_xdp_id() was deprecated in libbpf 0.8 and replaced with bpf_xdp_query_id() and bpf_xdp_attach/detach(). Updating configuration and source code to accommodate above changes and allow building OVS with AF_XDP support on newer systems: - Checking the version of libbpf by detecting availability of bpf_xdp_detach. - Checking availability of the libxdp in a system by looking for a library providing libxdp_strerror(), if libbpf is newer than 0.6. And checking for xsk.h header provided by libxdp-dev[el]. - Use xsk.h from libbpf if it is older than 0.7 and not linking with libxdp in this case as there are known incompatible versions of libxdp in distributions. - Check for the NEED_WAKEUP feature replaced with direct checking in the source code if XDP_USE_NEED_WAKEUP is defined. - Checking availability of bpf_xdp_query_id and bpf_xdp_detach and using them instead of deprecated APIs. Fall back to old functions if not found. - Dropped LIBBPF_LDADD variable as it makes library and function detection much harder without providing any actual benefits. AC_SEARCH_LIBS is used instead and it allows use of AC_CHECK_FUNCS. - Header includes moved around to files where they are actually used. - Removed libelf dependency as it is not really used. With these changes it should be possible to build OVS with either: - libbpf built from the kernel sources (5.19 or older). - libbpf < 0.7 provided in distributions. - libxdp and libbpf >= 0.7 provided in newer distributions. While it is technically possible to build with libbpf 0.7+ without libxdp at the moment we're not allowing that for a few reasons. First, required functions in libbpf are deprecated and can be removed in future releases. Second, support for all these combinations makes the detection code fairly complex. AFAIK, most of the distributions packaging libbpf 0.7+ do package libxdp as well. libxdp added as a build dependency for Fedora build since all supported versions of Fedora are packaging this library. Acked-by: Eelco Chaudron <echaudro@redhat.com> Signed-off-by: Ilya Maximets <i.maximets@ovn.org> 2022-12-22 01:06:20 +01:00			`Libs.private: @LIBS@ @SSL_LIBS@ @CAPNG_LDADD@`
rhel: Stop installing internal headers. Currently, openvswitch-devel installs following header tree: /usr/include /openflow/.h /openvswitch /.h /openflow/.h /openvswitch/.h /sparse/.h /lib/.h Few issues with that: 1. openflow and openvswitch headers are installed twice. Once in the main /usr/include and second time in the /usr/include/openvswitch/. 2. For some reason internal headers such as lib/.h and fairly useless headers such as sparse/.h are installed as well. One more issue is that current pkg-config files doesn't work with builds installed with 'make install', because 'make install' doesn't create this weird header tree. While double install of same headers is not a huge problem, it doesn't seem right. Installation of the internal headers is a bigger issue. They are not part of API/ABI and we do not provide any stability guarantees for them. We are making incompatible changes constantly in minor updates, so users should not rely on these headers. If it's necessary for some external application to use them, this external application should not link with libopenvswitch dynamically and also it can't expect the static library to not break these API/ABI, hence there is no real point installing them. Application should use OVS as a submodule like OVN does or compile itself by obtaining required version of OVS sources otherwise. Another option is to properly export and install required headers. pkg-config configuration files updated as necessary. Fixes: 4886d4d2495b ("debian, rhel: Ship ovs shared libraries and header files") Reviewed-by: David Marchand <david.marchand@redhat.com> Signed-off-by: Ilya Maximets <i.maximets@ovn.org> 2022-07-25 14:19:36 +02:00			`Cflags: -I${includedir}`