[nautilus-actions] na-enable-manuals.m4: fix the test for building even for not-default values

[Pierre Wieser <pwieser src gnome org>]

commit 5fc87531ffe6710b463b1e82401acafb0ad04773
Author: Pierre Wieser <pwieser trychlos org>
Date:   Sat Dec 3 23:57:54 2011 +0100

    na-enable-manuals.m4: fix the test for building even for not-default values

 ChangeLog               |    3 +++
 m4/na-enable-manuals.m4 |    2 +-
 2 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index 6f32743..202c610 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2011-12-03 Pierre Wieser <pwieser trychlos org>
 
+	* m4/na-enable-manuals.m4:
+	Fix the test as possible values are 'gdt', 'db2html' and 'no.
+
 	* docs/reference/Makefile.am: Fix when builddir not equal to srcdir.
 
 2011-12-02 Pierre Wieser <pwieser trychlos org>
diff --git a/m4/na-enable-manuals.m4 b/m4/na-enable-manuals.m4
index c64fb03..02721bf 100644
--- a/m4/na-enable-manuals.m4
+++ b/m4/na-enable-manuals.m4
@@ -52,7 +52,7 @@ AC_DEFUN([NA_ENABLE_MANUALS],[
 	_CHECK_FOR_HTML_MANUALS
 	_CHECK_FOR_PDF_MANUALS
 
-	AM_CONDITIONAL([ENABLE_MANUALS], [test "${enable_html_manuals}" = "yes" -a  "${enable_pdf_manuals}" = "yes" ])
+	AM_CONDITIONAL([ENABLE_MANUALS], [test "${enable_html_manuals}" != "no" -o  "${enable_pdf_manuals}" != "no" ])
 ])
 
 AC_DEFUN([_AC_ARG_NA_ENABLE_HTML_MANUALS],[