Merge "[clang] Fix missing header after libc++ update" into main
diff --git a/android-emu/aemu/base/Optional.h b/android-emu/aemu/base/Optional.h
index d0a8aa7..802a793 100644
--- a/android-emu/aemu/base/Optional.h
+++ b/android-emu/aemu/base/Optional.h
@@ -24,6 +24,7 @@
 #include <utility>
 
 #include <cstddef>
+#include <cstdlib>
 
 // Optional<T> - a template class to store an optional value of type T.
 //