[vte] Prevent single inclusion of vtedeprecated.h

[Christian Persch <chpe src gnome org>]

commit d08ab3e5641e6f486e1918d32566bec104924698
Author: Christian Persch <chpe gnome org>
Date:   Wed Mar 24 14:15:08 2010 +0100

    Prevent single inclusion of vtedeprecated.h

 src/vte.h           |    2 ++
 src/vtedeprecated.h |    4 ++++
 2 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/src/vte.h b/src/vte.h
index 666ef29..dac4970 100644
--- a/src/vte.h
+++ b/src/vte.h
@@ -487,7 +487,9 @@ gboolean vte_terminal_write_contents (VteTerminal *terminal,
 G_END_DECLS
 
 #ifndef VTE_DISABLE_DEPRECATED
+#define __VTE_VTE_H_INSIDE__ 1
 #include "vtedeprecated.h"
+#undef __VTE_VTE_H_INSIDE__
 #endif /* VTE_DISABLE_DEPRECATED */
 
 #endif
diff --git a/src/vtedeprecated.h b/src/vtedeprecated.h
index ca34201..7f707e8 100644
--- a/src/vtedeprecated.h
+++ b/src/vtedeprecated.h
@@ -16,6 +16,10 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#if !defined (__VTE_VTE_H_INSIDE__) && !defined (VTE_COMPILATION)
+#error "Only <vte/vte.h> can be included directly."
+#endif
+
 #ifndef vte_deprecated_h_included
 #define vte_deprecated_h_included