mirror of
https://gitlab.com/buildroot.org/buildroot.git
synced 2026-09-10 08:14:09 -09:00
5108554dfe
Since qemu started using ninja, they have the following fragment in the Makefile: MAKE.n = $(findstring n,$(firstword $(MAKEFLAGS))) NINJAFLAGS = ... $(if $(MAKE.n), -n) ... Buildroot's generated makefile in the O= directory invokes make in the base buildroot with --no-print-directory. However, make's placement of the --no-print-directory in MAKEFLAGS varies between the versions of the host make; make 4.3 places that at the end while make 3.82 places it at the beginning. As a result, if building on a system with an older host make, qemu's makefile invokes `ninja -n` which does not generate any outputs. To reproduce, on a CentOS 7 machine or docker image: mkdir /tmp/br-build && cd /tmp/br-build make -C ~/buildroot pc_x86_64_bios_defconfig O=`pwd` make menuconfig # Switch to glibc, enable "QEMU" and "QEMU tools" make all # Build succeeds find target -name qemu-img # No binary has been built Pick up the fix commited in Qemu upstream. Signed-off-by: Alexey Neyman <stilor@att.net> Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
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