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The Bootlin uClibc toolchains for m68k-68xxx, riscv32-ilp32d, and xtensa-lx60 require an MMU. However, their generated Kconfig entries lack a BR2_USE_MMU dependency, allowing them to be selected for noMMU configurations. External toolchain validation then fails with: MMU support available in C library, please enable BR2_USE_MMU Add the missing BR2_USE_MMU dependencies for these architectures to prevent them from being selected for noMMU targets. Signed-off-by: Fengwei Tan <tfx2001@outlook.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.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 https://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