From 4f9e3989f3c736d9792e942fcf0f22b2e8210d00 Mon Sep 17 00:00:00 2001 From: Valentin Korenblit Date: Thu, 12 Apr 2018 14:36:28 +0200 Subject: [PATCH] package/llvm: remove $ORIGIN/../lib from RPATH 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 Signed-off-by: Thomas Petazzoni --- package/llvm/llvm.mk | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/package/llvm/llvm.mk b/package/llvm/llvm.mk index 9c8bf5c820..de2ca38da1 100644 --- a/package/llvm/llvm.mk +++ b/package/llvm/llvm.mk @@ -25,6 +25,11 @@ LLVM_CONF_OPTS += -DLLVM_ENABLE_PROJECTS="" HOST_LLVM_CONF_OPTS += -DLLVM_CCACHE_BUILD=$(if $(BR2_CCACHE),ON,OFF) LLVM_CONF_OPTS += -DLLVM_CCACHE_BUILD=$(if $(BR2_CCACHE),ON,OFF) +# This option prevents AddLLVM.cmake from adding $ORIGIN/../lib to +# binaries. Otherwise, llvm-config (host variant installed in STAGING) +# will try to use target's libc. +HOST_LLVM_CONF_OPTS += -DCMAKE_INSTALL_RPATH="$(HOST_DIR)/lib" + # Disable experimental Global Instruction Selection support. # https://llvm.org/docs/GlobalISel.html HOST_LLVM_CONF_OPTS += -DLLVM_BUILD_GLOBAL_ISEL=OFF -- 2.30.2