diff --git a/drivers/acpi/acpica/acapps.h b/drivers/acpi/acpica/acapps.h
index 247f30c..bc38534 100644
--- a/drivers/acpi/acpica/acapps.h
+++ b/drivers/acpi/acpica/acapps.h
@@ -44,6 +44,10 @@
 #ifndef _ACAPPS
 #define _ACAPPS
 
+#ifdef ACPI_USE_STANDARD_HEADERS
+#include <sys/stat.h>
+#endif				/* ACPI_USE_STANDARD_HEADERS */
+
 /* Common info for tool signons */
 
 #define ACPICA_NAME                 "Intel ACPI Component Architecture"
diff --git a/include/acpi/platform/acenv.h b/include/acpi/platform/acenv.h
index 1e2fe95..3dbfa27 100644
--- a/include/acpi/platform/acenv.h
+++ b/include/acpi/platform/acenv.h
@@ -350,7 +350,8 @@
 #include <stdio.h>
 #include <fcntl.h>
 #include <errno.h>
-#include <sys/stat.h>
+#include <time.h>
+#include <signal.h>
 #endif
 
 #endif				/* ACPI_USE_STANDARD_HEADERS */
diff --git a/tools/power/acpi/tools/acpidump/acpidump.h b/tools/power/acpi/tools/acpidump/acpidump.h
index 9f7db00..00423fc 100644
--- a/tools/power/acpi/tools/acpidump/acpidump.h
+++ b/tools/power/acpi/tools/acpidump/acpidump.h
@@ -55,6 +55,7 @@
 #include <acpi/acpi.h>
 #include "accommon.h"
 #include "actables.h"
+#include "acapps.h"
 
 /* Globals */
 
diff --git a/tools/power/acpi/tools/acpidump/apfiles.c b/tools/power/acpi/tools/acpidump/apfiles.c
index c527521..44a0010 100644
--- a/tools/power/acpi/tools/acpidump/apfiles.c
+++ b/tools/power/acpi/tools/acpidump/apfiles.c
@@ -42,7 +42,6 @@
  */
 
 #include "acpidump.h"
-#include "acapps.h"
 
 /* Local prototypes */
 
diff --git a/tools/power/acpi/tools/acpidump/apmain.c b/tools/power/acpi/tools/acpidump/apmain.c
index cd6c097..17ce0d7 100644
--- a/tools/power/acpi/tools/acpidump/apmain.c
+++ b/tools/power/acpi/tools/acpidump/apmain.c
@@ -43,7 +43,6 @@
 
 #define _DECLARE_GLOBALS
 #include "acpidump.h"
-#include "acapps.h"
 
 /*
  * acpidump - A portable utility for obtaining system ACPI tables and dumping