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Default invocation to gzip include timestamp in output file. This feature is incompatible with BR2_REPRODUCIBLE. It is possible to disable it with '-n'. The environment variable GZIP can hold a set of default options for gzip. So instead to find all gzip invocation in build process, we just export 'GZIP=-n'. Notice bzip2, lzma and xz are not impacted by this problem. On the other hand, lzop does include timestamp and does not provide any way to disable it. This work was sponsored by `BA Robotic Systems'. Signed-off-by: Jérôme Pouiller <jezz@sysmic.org> Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.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