diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c
index 21a20ac..e516254 100644
--- a/drivers/acpi/acpica/utdebug.c
+++ b/drivers/acpi/acpica/utdebug.c
@@ -561,3 +561,29 @@
 }
 
 #endif
+
+#ifdef ACPI_APPLICATION
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_log_error
+ *
+ * PARAMETERS:  format              - Printf format field
+ *              ...                 - Optional printf arguments
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Print error message to the console, used by applications.
+ *
+ ******************************************************************************/
+
+void ACPI_INTERNAL_VAR_XFACE acpi_log_error(const char *format, ...)
+{
+	va_list args;
+
+	va_start(args, format);
+	(void)acpi_ut_file_vprintf(ACPI_FILE_ERR, format, args);
+	va_end(args);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_log_error)
+#endif
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 35b525c..9858551 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -335,6 +335,23 @@
 
 #endif				/* ACPI_DEBUG_OUTPUT */
 
+/*
+ * Application prototypes
+ *
+ * All interfaces used by application will be configured
+ * out of the ACPICA build unless the ACPI_APPLICATION
+ * flag is defined.
+ */
+#ifdef ACPI_APPLICATION
+#define ACPI_APP_DEPENDENT_RETURN_VOID(prototype) \
+	prototype;
+
+#else
+#define ACPI_APP_DEPENDENT_RETURN_VOID(prototype) \
+	static ACPI_INLINE prototype {return;}
+
+#endif				/* ACPI_APPLICATION */
+
 /*****************************************************************************
  *
  * ACPICA public interface prototypes
@@ -861,6 +878,9 @@
 						     const char *module_name,
 						     u32 component_id,
 						     const char *format, ...))
+ACPI_APP_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(1)
+				void ACPI_INTERNAL_VAR_XFACE
+				acpi_log_error(const char *format, ...))
 
 /*
  * Divergences
diff --git a/include/acpi/platform/acenv.h b/include/acpi/platform/acenv.h
index b6429e4..4390ebd 100644
--- a/include/acpi/platform/acenv.h
+++ b/include/acpi/platform/acenv.h
@@ -423,8 +423,12 @@
 #ifdef ACPI_APPLICATION
 #include <stdio.h>
 #define ACPI_FILE              FILE *
+#define ACPI_FILE_OUT          stdout
+#define ACPI_FILE_ERR          stderr
 #else
 #define ACPI_FILE              void *
+#define ACPI_FILE_OUT          NULL
+#define ACPI_FILE_ERR          NULL
 #endif				/* ACPI_APPLICATION */
 #endif				/* ACPI_FILE */