diff options
| -rw-r--r-- | src/bootstrap/dist.rs | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/bootstrap/dist.rs b/src/bootstrap/dist.rs index bdab12db435..9506a829408 100644 --- a/src/bootstrap/dist.rs +++ b/src/bootstrap/dist.rs @@ -2335,6 +2335,22 @@ fn maybe_install_llvm(builder: &Builder<'_>, target: TargetSelection, dst_libdir return; } + if let Some(config) = builder.config.target_config.get(&target) { + if config.llvm_config.is_some() { + // If the LLVM was externally provided, then we don't currently copy + // artifacts into the sysroot. This is not necessarily the right + // choice (in particular, it will require the LLVM dylib to be in + // the linker's load path at runtime), but the common use case for + // external LLVMs is distribution provided LLVMs, and in that case + // they're usually in the standard search path (e.g., /usr/lib) and + // copying them here is going to cause problems as we may end up + // with the wrong files and isn't what distributions want. + // + // This behavior may be revisited in the future though. + return; + } + } + // On macOS, rustc (and LLVM tools) link to an unversioned libLLVM.dylib // instead of libLLVM-11-rust-....dylib, as on linux. It's not entirely // clear why this is the case, though. llvm-config will emit the versioned |