configure.ac : Report Ogg/FLAC support.
diff --git a/configure.ac b/configure.ac
index be1aff2..f000a0b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -332,6 +332,7 @@
 	OGG_PACKAGE="ogg"
 else
 	AC_DEFINE_UNQUOTED([FLAC__HAS_OGG],0)
+	have_ogg=no
 fi
 AC_SUBST(OGG_PACKAGE)
 
@@ -518,4 +519,5 @@
 	echo "    GCC version : ......................... ${GCC_VERSION}"
 fi
 	echo "    Asm optimiizations : .................. ${asm_optimisation}"
+	echo "    Ogg/FLAC support : .................... ${have_ogg}"
 echo