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The linux-headers -> linux dependency causes a circular dependency, breaking the source/legal-info/graph-depends/.. targets: make graph-depends Getting targets Getting dependencies for ['toolchain-buildroot', 'toolchain', 'busybox', 'glibc', 'initscripts', 'linux-headers', 'skeleton', 'linux', 'host-fakeroot', 'host-makedevs', 'rootfs-cpio', 'rootfs-initramfs'] Getting dependencies for ['host-kmod', 'host-gcc-final', 'host-gcc-initial', 'host-gawk'] Getting dependencies for ['host-gmp', 'host-binutils', 'host-pkgconf', 'host-mpfr', 'host-mpc'] Getting dependencies for ['host-m4'] Recursion detected for : toolchain which is a dependency of: linux which is a dependency of: linux-headers which is a dependency of: glibc which is a dependency of: host-gcc-final which is a dependency of: toolchain-buildroot which is a dependency of: toolchain Makefile:721: recipe for target 'graph-depends' failed make: *** [graph-depends] Error 1 Fix it by instead duplicating in linux-headers the 10-20 lines of linux.mk logic that infer the _SOURCE/_SITE/_VERSION from the BR2_LINUX_KERNEL_* variables. This does mean that we extract the kernel sources twice though. [Peter: use same git/hg tarball as linux kernel to not clone twice, minor fixes] Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> 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 Freenode IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches