configure: Print which libraries will be built

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

diff --git a/configure b/configure
index 008f375..102ad79 100755 (executable)
--- a/configure
+++ b/configure
@@ -5050,6 +5050,10 @@ echo "External libraries:"
 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
 echo
 
+echo "Libraries:"
+print_enabled '' $LIBRARY_LIST | print_3_columns
+echo
+
 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
     echo "Enabled ${type}s:"
     eval list=\$$(toupper $type)_LIST