Update shell.nix

Author: hamphet

shell.nix

@@ -23,10 +23,11 @@ in stdenv.mkDerivation {
       "-DCMAKE_BUILD_TYPE=Release"
       "-DCMAKE_EXPORT_COMPILE_COMMANDS=ON"
       "-DCMAKE_INSTALL_PREFIX=../inst"
-      "-DLLVM_ENABLE_PROJECTS=\"clang;clang-tools-extra;lld\""
-      "-DLLVM_ENABLE_RUNTIMES=\"compiler-rt;libcxx;libcxxabi;libunwind\""
       "-DLLVM_TARGETS_TO_BUILD=host"
       "-DLLVM_ENABLE_PER_TARGET_RUNTIME_DIR=OFF"
+      "-DLLVM_ENABLE_PROJECTS=\"clang;clang-tools-extra;lld\""
+      "-DLLVM_ENABLE_RUNTIMES=\"compiler-rt;libcxx;libcxxabi;libunwind\""
+      "-DLLVM_INSTALL_UTILS=ON"
       "-DCMAKE_POSITION_INDEPENDENT_CODE=ON"
       "-DLIBCXX_ENABLE_STATIC_ABI_LIBRARY=ON"
       "-DLIBCXX_STATICALLY_LINK_ABI_IN_SHARED_LIBRARY=OFF"