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When linking demo_mn_console statically with pcap, the CMake build system forget to link with other libraries linked with libpcap (-lnl-genl-3 -lnl-3 -ldbus-1 -pthread). [100%] Linking C executable demo_mn_console lib64/libpcap.a(pcap-linux.o): In function nl80211_init': pcap-linux.c:(.text+0x41e): undefined reference tonl_socket_alloc' To fix this, the build system could use pcap-config: pcap-config --libs --static -L/path/to/sysroot/usr/lib -lpcap -L/path/to/sysroot/usr/lib/.libs -lnl-genl-3 -lnl-3 -L/path/to/sysroot/usr/lib -ldbus-1 -pthread Also don't use getopt() from contrib directory to avoid a clash with libc definition. Fixes: http://autobuild.buildroot.net/results/f43/f437d09ac6c689c911e1885b95da33b692f2cb3c http://autobuild.buildroot.net/results/385/3859dc0f4de7e3284a96d5841f040f69f71842df https://github.com/OpenAutomationTechnologies/openPOWERLINK_V2/issues/187 Signed-off-by: Romain Naour <romain.naour@gmail.com> Tested-by: Bernd Kuhls <bernd.kuhls@t-online.de> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. The documentation can be found in docs/manual. You can generate a text document with 'make manual-text' and read output/docs/manual/manual.text. Online documentation can be found at http://buildroot.org/docs.html To build and use the buildroot stuff, do the following: 1) run 'make menuconfig' 2) select the target architecture and the packages you wish to compile 3) run 'make' 4) wait while it compiles 5) find the kernel, bootloader, root filesystem, etc. in output/images You do not need to be root to build or run buildroot. Have fun! Buildroot comes with a basic configuration for a number of boards. Run 'make list-defconfigs' to view the list of provided configurations. Please feed suggestions, bug reports, insults, and bribes back to the buildroot mailing list: buildroot@buildroot.org You can also find us on #buildroot on Freenode IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches