Bug 1866716 - Fixup for WasiAtomic.h CLOSED TREE

Differential Revision: https://phabricator.services.mozilla.com/D194875
2023-11-28 14:00:34 +00:00 · 2023-11-28 14:00:34 +00:00 · bf06bd8102
--- a/mfbt/WasiAtomic.h
+++ b/mfbt/WasiAtomic.h
@ -12,6 +12,7 @@
 #  include <atomic>
 #else

+#  include <cstddef>  // For ptrdiff_t
 #  include <cstdint>

 // WASI doesn't support <atomic> and we use it as single-threaded for now.