abseil.patch

# Force internal versions of std classes per
# https://abseil.io/docs/cpp/guides/options
diff --git a/absl/base/options.h b/absl/base/options.h
index 230bf1e..6e1b9e5 100644
--- a/absl/base/options.h
+++ b/absl/base/options.h
@@ -100,7 +100,7 @@
 // User code should not inspect this macro.  To check in the preprocessor if
 // absl::any is a typedef of std::any, use the feature macro ABSL_USES_STD_ANY.

-#define ABSL_OPTION_USE_STD_ANY 2
+#define ABSL_OPTION_USE_STD_ANY 0


 // ABSL_OPTION_USE_STD_OPTIONAL
@@ -127,7 +127,7 @@
 // absl::optional is a typedef of std::optional, use the feature macro
 // ABSL_USES_STD_OPTIONAL.

-#define ABSL_OPTION_USE_STD_OPTIONAL 2
+#define ABSL_OPTION_USE_STD_OPTIONAL 0


 // ABSL_OPTION_USE_STD_STRING_VIEW
@@ -154,7 +154,7 @@
 // absl::string_view is a typedef of std::string_view, use the feature macro
 // ABSL_USES_STD_STRING_VIEW.

-#define ABSL_OPTION_USE_STD_STRING_VIEW 2
+#define ABSL_OPTION_USE_STD_STRING_VIEW 0

 // ABSL_OPTION_USE_STD_VARIANT
 //
@@ -180,7 +180,7 @@
 // absl::variant is a typedef of std::variant, use the feature macro
 // ABSL_USES_STD_VARIANT.

-#define ABSL_OPTION_USE_STD_VARIANT 2
+#define ABSL_OPTION_USE_STD_VARIANT 0


 // ABSL_OPTION_USE_INLINE_NAMESPACE
diff --git a/absl/flags/commandlineflag.h b/absl/flags/commandlineflag.h
index f2fa08977f..8e97fdb0ca 100644
--- a/absl/flags/commandlineflag.h
+++ b/absl/flags/commandlineflag.h
@@ -153,7 +153,7 @@ class CommandLineFlag {
   bool ParseFrom(absl::string_view value, std::string* error);
 
  protected:
-  ~CommandLineFlag() = default;
+  virtual ~CommandLineFlag() = default;
 
  private:
   friend class flags_internal::PrivateHandleAccessor;