[pygtk] Fix conditional in docs/Makefile.am

[Paul Pogonyshev <paulp src gnome org>]

commit bec9aad2859e246ee5148494089dcc67c1fd8404
Author: Frederic Peters <fpeters 0d be>
Date:   Tue May 12 20:26:30 2009 +0300

    Fix conditional in docs/Makefile.am
    
    Bug #582139.
---
 docs/Makefile.am |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/docs/Makefile.am b/docs/Makefile.am
index c1b7239..aaf6363 100644
--- a/docs/Makefile.am
+++ b/docs/Makefile.am
@@ -667,4 +667,8 @@ $(HTML_FILES): $(XMLFILES) $(XSLFILES)
 # 	pdfxmltex pygtk-ref.fo >output </dev/null
 
 
+else
+
+install-data-hook:
+
 endif