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After applying a patch like [1], the build failed with the following error: liballjoyn_c.a(Message.o): In function `alljoyn_message_destroy': Message.cc:(.text+0x74): undefined reference to `__sync_sub_and_fetch_4' liballjoyn.so: undefined reference to `__sync_bool_compare_and_swap_4' liballjoyn.so: undefined reference to `__sync_add_and_fetch_4' So, add dependency on BR2_TOOLCHAIN_HAS_SYNC_4 which also disable the alljoyn build on sparc. [1] https://git.buildroot.org/buildroot/commit/?id=c5e96d8935016456bea342db170ae6a139a8470f Fixes: http://autobuild.buildroot.net/results/cea/cea62a7ed7f1eda6f817d8e27fd645942def25ec Signed-off-by: Romain Naour <romain.naour@gmail.com> 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