Enable LLVM zlib when building LLD

Author: Jethro Beekman

src/bootstrap/native.rs

@@ -158,7 +158,7 @@ impl Step for Llvm {
             .define("LLVM_INCLUDE_TESTS", "OFF")
             .define("LLVM_INCLUDE_DOCS", "OFF")
             .define("LLVM_INCLUDE_BENCHMARKS", "OFF")
-            .define("LLVM_ENABLE_ZLIB", "OFF")
+            .define("LLVM_ENABLE_ZLIB", "ON")
             .define("WITH_POLLY", "OFF")
             .define("LLVM_ENABLE_TERMINFO", "OFF")
             .define("LLVM_ENABLE_LIBEDIT", "OFF")