[sabayon] Hard dependency on Pessulus

[Scott Balneaves <sbalneav src gnome org>]

commit 81eee206d96f0bf683b930fde1b5ad55f8764c93
Author: Scott Balneaves <sbalneav ltsp org>
Date:   Tue Dec 22 20:06:41 2009 -0600

    Hard dependency on Pessulus

 configure.ac |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index e7343fe..e1955d4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -40,6 +40,16 @@ else
 	AC_MSG_RESULT(yes)
 fi
 
+# Hard dependency on Pessulus
+
+AC_MSG_CHECKING(whether Pessulus is available)
+if [ ! python -c "import Pessulus" 2> /dev/null ]
+then
+	AC_MSG_FAILURE([Please install Pessulus])
+else
+	AC_MSG_RESULT(yes)
+fi
+
 #
 # Do a soft check for Python bindings for LDAP.  They're not strictly
 # necessary, but if you don't have them, you won't be able to do LDAP