--- ldc-1.32.2/driver/args.h.orig	2023-05-28 16:39:55.277642880 +0200
+++ ldc-1.32.2/driver/args.h	2023-05-28 16:43:17.582551616 +0200
@@ -40,8 +40,8 @@
 // Executes a command line and returns its exit code.
 // Optionally uses a response file to overcome cmdline length limitations.
 int executeAndWait(std::vector<const char *> fullArgs,
-                   llvm::Optional<llvm::sys::WindowsEncodingMethod>
-                       responseFileEncoding = {llvm::None},
+                   std::optional<llvm::sys::WindowsEncodingMethod>
+                       responseFileEncoding = {std::nullopt},
                    std::string *errorMsg = nullptr);
 } // namespace args
 
--- ldc-1.32.2/driver/args.cpp.orig	2023-05-28 16:43:44.700403861 +0200
+++ ldc-1.32.2/driver/args.cpp	2023-05-28 16:46:39.739443702 +0200
@@ -159,11 +159,11 @@
 
 int executeAndWait(
     std::vector<const char *> fullArgs,
-    llvm::Optional<llvm::sys::WindowsEncodingMethod> responseFileEncoding,
+    std::optional<llvm::sys::WindowsEncodingMethod> responseFileEncoding,
     std::string *errorMsg) {
   args::ResponseFile rspFile;
-  if (responseFileEncoding.hasValue() &&
-      !rspFile.setup(fullArgs, responseFileEncoding.getValue())) {
+  if (responseFileEncoding.has_value() &&
+      !rspFile.setup(fullArgs, responseFileEncoding.value())) {
     if (errorMsg)
       *errorMsg = "could not write temporary response file";
     return -1;