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The current Busybox version (1.36.0) fails to build with some libc/linux combinations where getrandom() is not available. Two fixes for glibc already exists upstream, so backport them here. A third one (submitted upstream, not part of the main branch yet) was needed to be able to compile with older musl and uClibc versions (or older kernels). This fixes the following build failure raised since commitd68b617993: miscutils/seedrng.c:45:24: fatal error: sys/random.h: No such file or directory #include <sys/random.h> Fixes: - http://autobuild.buildroot.net/results/44a0476b86c579e6aa658f156f0292958d40513c - http://autobuild.buildroot.net/results/ed028160db397581558fd8c96755621dd8298bb1 - https://gitlab.com/buildroot.org/buildroot/-/jobs/4122624008 - https://gitlab.com/buildroot.org/buildroot/-/jobs/4122624034 - https://gitlab.com/buildroot.org/buildroot/-/jobs/4122624044 - https://gitlab.com/buildroot.org/buildroot/-/jobs/4122624048 - https://gitlab.com/buildroot.org/buildroot/-/jobs/4122624051 It also fixes the following (similar) build failure, raised since the same commit: miscutils/lib.a(seedrng.o): In function `seedrng_main': seedrng.c:(.text.seedrng_main+0x26c): undefined reference to `getrandom' seedrng.c:(.text.seedrng_main+0x2e8): undefined reference to `getrandom' collect2: error: ld returned 1 exit status Fixes: - https://gitlab.com/buildroot.org/buildroot/-/jobs/4122624028 - https://gitlab.com/buildroot.org/buildroot/-/jobs/4122624031 Signed-off-by: Raphaël Mélotte <raphael.melotte@mind.be> Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr> (cherry picked from commitcd02f96b87) Signed-off-by: Peter Korsgaard <peter@korsgaard.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 OFTC IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches