4 files changed, 16 insertions, 0 deletions
diff --git a/e-util/e-alert-dialog.h b/e-util/e-alert-dialog.h
index 6240f681ad..7849d54a05 100644
--- a/e-util/e-alert-dialog.h
+++ b/e-util/e-alert-dialog.h
@@ -21,6 +21,10 @@
  * Copyright (C) 2009 Intel Corporation
  */
 
+#if !defined (__E_UTIL_H_INSIDE__) && !defined (LIBEUTIL_COMPILATION)
+#error "Only <e-util/e-util.h> should be included directly."
+#endif
+
 #ifndef E_ALERT_DIALOG_H
 #define E_ALERT_DIALOG_H
 
diff --git a/e-util/e-alert-sink.h b/e-util/e-alert-sink.h
index 06a2e68483..6f64c5a9c4 100644
--- a/e-util/e-alert-sink.h
+++ b/e-util/e-alert-sink.h
@@ -16,6 +16,10 @@
  *
  */
 
+#if !defined (__E_UTIL_H_INSIDE__) && !defined (LIBEUTIL_COMPILATION)
+#error "Only <e-util/e-util.h> should be included directly."
+#endif
+
 #ifndef E_ALERT_SINK_H
 #define E_ALERT_SINK_H
 
diff --git a/e-util/e-alert.h b/e-util/e-alert.h
index 4cba32135d..5282442c1d 100644
--- a/e-util/e-alert.h
+++ b/e-util/e-alert.h
@@ -22,6 +22,10 @@
  *
  */
 
+#if !defined (__E_UTIL_H_INSIDE__) && !defined (LIBEUTIL_COMPILATION)
+#error "Only <e-util/e-util.h> should be included directly."
+#endif
+
 #ifndef E_ALERT_H
 #define E_ALERT_H
 
diff --git a/e-util/e-xml-utils.h b/e-util/e-xml-utils.h
index 9796569774..04ca5aeb29 100644
--- a/e-util/e-xml-utils.h
+++ b/e-util/e-xml-utils.h
@@ -20,6 +20,10 @@
  *
  */
 
+#if !defined (__E_UTIL_H_INSIDE__) && !defined (LIBEUTIL_COMPILATION)
+#error "Only <e-util/e-util.h> should be included directly."
+#endif
+
 #ifndef __E_XML_UTILS__
 #define __E_XML_UTILS__