[recipes] Add libcanberra to the configure summary

[Matthias Clasen <matthiasc src gnome org>]

commit 97d5852a440696034d345f4361fe98c968c75186
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Feb 18 21:00:06 2017 -0500

    Add libcanberra to the configure summary
    
    Just for completeness, list all optional dependencies.

 configure.ac |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index b396ff9..0bb9ac6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -176,4 +176,5 @@ echo "  Prefix ............................... : ${prefix}"
 echo "  Libdir ............................... : ${libdir}"
 echo "  Export/Import ........................ : ${enable_autoar}"
 echo "  Spell checking ....................... : ${enable_gspell}"
+echo "  Sound ................................ : ${enable_canberra}"
 echo ""