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AddLLVM.cmake adds $ORIGIN/../lib to the RPATH of llvm binaries. This causes a problem when llvm-config built for the host, installed in STAGING_DIR, is executed under the following conditions: * Target architecture same as host architecture (normally x86_64) * Target's libc different from host's libc (normally glibc) llvm-config will try to link with the target's libc, resulting in: ./llvm-config: error while loading shared libraries: libc.so.0: cannot open shared object file: No such file or directory. To avoid this, we simply add pass -DCMAKE_INSTALL_RPATH="$(HOST_DIR)/lib" in HOST_LLVM_CONF_OPTS. Link to discussion: http://lists.busybox.net/pipermail/buildroot/2018-April/218627.html Fixes: http://autobuild.buildroot.net/results/b81c12d529c66a028e2297ea5ce1d6930324fa69/ Signed-off-by: Valentin Korenblit <valentin.korenblit@smile.fr> 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 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