5 files changed, 6 insertions, 0 deletions
diff --git a/absl/base/call_once.h b/absl/base/call_once.h
index 8c4f297c..e7fc2300 100644
--- a/absl/base/call_once.h
+++ b/absl/base/call_once.h
@@ -29,6 +29,7 @@
 #include <atomic>
 #include <cstdint>
 #include <type_traits>
+#include <utility>
 
 #include "absl/base/internal/invoke.h"
 #include "absl/base/internal/low_level_scheduling.h"
@@ -36,6 +37,7 @@
 #include "absl/base/internal/scheduling_mode.h"
 #include "absl/base/internal/spinlock_wait.h"
 #include "absl/base/macros.h"
+#include "absl/base/optimization.h"
 #include "absl/base/port.h"
 
 namespace absl {
diff --git a/absl/base/casts.h b/absl/base/casts.h
index a381c427..aba01782 100644
--- a/absl/base/casts.h
+++ b/absl/base/casts.h
@@ -27,6 +27,7 @@
 #include <cstring>
 #include <memory>
 #include <type_traits>
+#include <utility>
 
 #include "absl/base/internal/identity.h"
 #include "absl/base/macros.h"
diff --git a/absl/base/internal/low_level_alloc.h b/absl/base/internal/low_level_alloc.h
index b35673de..c98cdb30 100644
--- a/absl/base/internal/low_level_alloc.h
+++ b/absl/base/internal/low_level_alloc.h
@@ -25,6 +25,7 @@
 // IWYU pragma: private, include "base/low_level_alloc.h"
 
 #include <sys/types.h>
+
 #include <cstdint>
 
 #include "absl/base/attributes.h"
diff --git a/absl/base/internal/spinlock.h b/absl/base/internal/spinlock.h
index 940f56af..a55aa20b 100644
--- a/absl/base/internal/spinlock.h
+++ b/absl/base/internal/spinlock.h
@@ -32,6 +32,7 @@
 
 #include <stdint.h>
 #include <sys/types.h>
+
 #include <atomic>
 
 #include "absl/base/attributes.h"
diff --git a/absl/base/macros.h b/absl/base/macros.h
index ca620792..606a90ac 100644
--- a/absl/base/macros.h
+++ b/absl/base/macros.h
@@ -31,6 +31,7 @@
 #include <cassert>
 #include <cstddef>
 
+#include "absl/base/optimization.h"
 #include "absl/base/port.h"
 
 // ABSL_ARRAYSIZE()