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As reported in the bug report [1], gcc < 6 doesn't build when FORTIFY_SOURCE is set to 1 or 2. The issue is related to the upstream bug report [2] but the patch fixing the issue for gcc 6 has not been backported to earlier gcc versions. Add a dependency on gcc at least version 6 to BR2_FORTIFY_SOURCE_1 and BR2_FORTIFY_SOURCE_2. [1] https://bugs.busybox.net/show_bug.cgi?id=11476 [2] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61164 [3]55f12fce4cSigned-off-by: Romain Naour <romain.naour@gmail.com> Cc: Matthew Weber <matthew.weber@rockwellcollins.com> Cc: Peter Korsgaard <peter@korsgaard.com> [Peter: only limit for internal toolchain as suggested by Matthew] Signed-off-by: Peter Korsgaard <peter@korsgaard.com> (cherry picked from commita75ee0e812) 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