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nettle uses m4 during its build process. Without it, the build fails with: m4 ./m4-utils.m4 ./asm.m4 config.m4 machine.m4 aes-decrypt-internal.asm >aes-decrypt-internal.s /bin/sh: 1: m4: not found For the target package this is not visible, as the existing gmp dependency pulls in host-m4. But technically speaking, nettle needs host-m4 directly, so it makes sense to have this dependency. For the host package, it clearly fails to build, but probably isn't very visible as most systems have m4 installed system-wide: this was noticed when building inside Buildroot's minimal Docker container. There are no recorded autobuilder failures for this issue. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> (cherry picked from commit d4ca1b03c0d6f34d10d10cab06ca28c24a7d296d) 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