diff --git a/drivers/acpi/acpica/acapps.h b/drivers/acpi/acpica/acapps.h
index ca2c0607104b..247f30c33e21 100644
--- a/drivers/acpi/acpica/acapps.h
+++ b/drivers/acpi/acpica/acapps.h
@@ -44,8 +44,6 @@
 #ifndef _ACAPPS
 #define _ACAPPS
 
-#include <stdio.h>
-
 /* Common info for tool signons */
 
 #define ACPICA_NAME                 "Intel ACPI Component Architecture"
diff --git a/drivers/acpi/acpica/utpredef.c b/drivers/acpi/acpica/utpredef.c
index 770a1775b264..ce18346b6144 100644
--- a/drivers/acpi/acpica/utpredef.c
+++ b/drivers/acpi/acpica/utpredef.c
@@ -176,8 +176,6 @@ void acpi_ut_get_expected_return_types(char *buffer, u32 expected_btypes)
  ******************************************************************************/
 
 #if (defined ACPI_ASL_COMPILER || defined ACPI_HELP_APP)
-#include <stdio.h>
-#include <string.h>
 
 /* Local prototypes */
 
diff --git a/include/acpi/platform/acenv.h b/include/acpi/platform/acenv.h
index ee5c0b98e53a..1e2fe9501c16 100644
--- a/include/acpi/platform/acenv.h
+++ b/include/acpi/platform/acenv.h
@@ -209,18 +209,20 @@
 #elif defined(__OS2__)
 #include "acos2.h"
 
-#elif defined(_AED_EFI)
-#include "acefi.h"
-
-#elif defined(_GNU_EFI)
-#include "acefi.h"
-
 #elif defined(__HAIKU__)
 #include "achaiku.h"
 
 #elif defined(__QNX__)
 #include "acqnx.h"
 
+/*
+ * EFI applications can be built with -nostdlib, in this case, it must be
+ * included after including all other host environmental definitions, in
+ * order to override the definitions.
+ */
+#elif defined(_AED_EFI) || defined(_GNU_EFI)
+#include "acefi.h"
+
 #else
 
 /* Unknown environment */
@@ -344,12 +346,16 @@
 #include <stdlib.h>
 #include <string.h>
 #include <ctype.h>
+#ifdef ACPI_APPLICATION
+#include <stdio.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/stat.h>
+#endif
 
 #endif				/* ACPI_USE_STANDARD_HEADERS */
 
-#ifndef ACPI_FILE
 #ifdef ACPI_APPLICATION
-#include <stdio.h>
 #define ACPI_FILE              FILE *
 #define ACPI_FILE_OUT          stdout
 #define ACPI_FILE_ERR          stderr
@@ -358,7 +364,6 @@
 #define ACPI_FILE_OUT          NULL
 #define ACPI_FILE_ERR          NULL
 #endif				/* ACPI_APPLICATION */
-#endif				/* ACPI_FILE */
 
 #ifndef ACPI_INIT_FUNCTION
 #define ACPI_INIT_FUNCTION
diff --git a/include/acpi/platform/acenvex.h b/include/acpi/platform/acenvex.h
index 4f15c1d10b61..b6726152a300 100644
--- a/include/acpi/platform/acenvex.h
+++ b/include/acpi/platform/acenvex.h
@@ -59,15 +59,17 @@
 #elif defined(WIN32)
 #include "acwinex.h"
 
-#elif defined(_AED_EFI)
-#include "acefiex.h"
-
-#elif defined(_GNU_EFI)
-#include "acefiex.h"
-
 #elif defined(__DragonFly__)
 #include "acdragonflyex.h"
 
+/*
+ * EFI applications can be built with -nostdlib, in this case, it must be
+ * included after including all other host environmental definitions, in
+ * order to override the definitions.
+ */
+#elif defined(_AED_EFI) || defined(_GNU_EFI)
+#include "acefiex.h"
+
 #endif
 
 /*! [End] no source code translation !*/
diff --git a/tools/power/acpi/common/cmfsize.c b/tools/power/acpi/common/cmfsize.c
index e73a79fce015..d2240e60566f 100644
--- a/tools/power/acpi/common/cmfsize.c
+++ b/tools/power/acpi/common/cmfsize.c
@@ -44,7 +44,6 @@
 #include <acpi/acpi.h>
 #include "accommon.h"
 #include "acapps.h"
-#include <stdio.h>
 
 #define _COMPONENT          ACPI_TOOLS
 ACPI_MODULE_NAME("cmfsize")
diff --git a/tools/power/acpi/tools/acpidump/acpidump.h b/tools/power/acpi/tools/acpidump/acpidump.h
index 94dd8a10f7f6..9f7db006f326 100644
--- a/tools/power/acpi/tools/acpidump/acpidump.h
+++ b/tools/power/acpi/tools/acpidump/acpidump.h
@@ -56,11 +56,6 @@
 #include "accommon.h"
 #include "actables.h"
 
-#include <stdio.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <sys/stat.h>
-
 /* Globals */
 
 EXTERN u8 INIT_GLOBAL(gbl_summary_mode, FALSE);