From 2a17fb6057eed2416e81cc138c885b1385fbff5d Mon Sep 17 00:00:00 2001 From: Valentin Korenblit Date: Sat, 13 Apr 2019 10:45:55 +0200 Subject: [PATCH] package/llvm: fix build with gcc < 5.1 Fixes: http://autobuild.buildroot.net/results/0c046a1b57a4f0b992333003d41062e1b256eb0d Signed-off-by: Valentin Korenblit [Arnout: add explanatory comment suggested by Romain] Signed-off-by: Arnout Vandecappelle (Essensium/Mind) --- package/llvm/llvm.mk | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/package/llvm/llvm.mk b/package/llvm/llvm.mk index cd374d74b4..3c62285188 100644 --- a/package/llvm/llvm.mk +++ b/package/llvm/llvm.mk @@ -17,6 +17,13 @@ LLVM_INSTALL_STAGING = YES HOST_LLVM_DEPENDENCIES = host-python LLVM_DEPENDENCIES = host-llvm +# LLVM >= 9.0 will soon require C++14 support, building llvm 8.x using a +# toolchain using gcc < 5.1 gives an error but actually still works. Setting +# this option makes it still build with gcc >= 4.8. +# https://reviews.llvm.org/D57264 +HOST_LLVM_CONF_OPTS += -DLLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN=ON +LLVM_CONF_OPTS += -DLLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN=ON + # Don't build clang libcxx libcxxabi lldb compiler-rt lld polly as llvm subprojects # This flag assumes that projects are checked out side-by-side and not nested HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_PROJECTS="" -- 2.30.2