diff --git a/build-flang.sh b/build-flang.sh
index 34fd898..d25c980 100644
--- a/build-flang.sh
+++ b/build-flang.sh
@@ -37,7 +37,7 @@ _EXTRA_CONFIGURE_ARGS="
 -DLLVM_ENABLE_FFI=ON
 -DFLANG_DEFAULT_LINKER=lld
 -DMLIR_INSTALL_AGGREGATE_OBJECTS=OFF
--DFLANG_ENABLE_WERROR=On
+-DFLANG_ENABLE_WERROR=OFF
 -DFLANG_INCLUDE_TESTS=OFF
 -DLLVM_ENABLE_ASSERTIONS=On
 -DLLVM_LIT_ARGS=-v
@@ -56,7 +56,7 @@ _CONFIGURE_ARGS=()
 _CONFIGURE_ARGS+=("-DCMAKE_C_COMPILER=$(pwd)/out/stage2-install/bin/clang")
 _CONFIGURE_ARGS+=("-DCMAKE_CXX_COMPILER=$(pwd)/out/stage2-install/bin/clang++")
 _CONFIGURE_ARGS+=("-DCMAKE_LINKER=$(pwd)/out/stage2-install/bin/ld.lld")
-_CONFIGURE_ARGS+=("-DCMAKE_CXX_FLAGS=-stdlib=libc++ -Wl,-rpath=$_HOST_RPATH -Wno-deprecated-copy")
+_CONFIGURE_ARGS+=("-DCMAKE_CXX_FLAGS=-stdlib=libc++ -Wl,-rpath=$_HOST_RPATH")
 _CONFIGURE_ARGS+=("-DCMAKE_EXE_LINKER_FLAGS=-stdlib=libc++ -Wl,-rpath=$_HOST_RPATH")
 _CONFIGURE_ARGS+=("-DCMAKE_INSTALL_RPATH=$_HOST_RPATH")