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Buildroot commitaedf131da6bumped the package to 8.5.0 which made opcache a mandatory dependency but kept the CFLAGS added in 2015 with buildroot commite054764917. As it turns out we need to remove the CFLAGS to fix the build with the bootlin-aarch64-glibc-old defconfig as detected by the Gitlab pipelines: ext/opcache/shared_alloc_posix.o: In function `create_segments': shared_alloc_posix.c:(.text+0xcc): undefined reference to `shm_open' shared_alloc_posix.c:(.text+0x11c): undefined reference to `shm_unlink' shared_alloc_posix.c:(.text+0x19c): undefined reference to `shm_unlink' shared_alloc_posix.c:(.text+0x1b8): undefined reference to `shm_unlink' as they seem to disturb the detection of librt. It is unclear which upstream commits added since 2015 fixed the original problem so a backport to LTS branches is not advised. Signed-off-by: Bernd Kuhls <bernd@kuhls.net> Signed-off-by: Julien Olivain <ju.o@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 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