1 files changed, 1 insertions, 1 deletions
diff --git a/configure b/configure
index 14a4be2f31..c257db0cab 100755
--- a/configure
+++ b/configure
@@ -7118,7 +7118,7 @@ if test "$_gui" = yes ; then
   # Required libraries
   if test "$_libavcodec" != yes ||
       not "echo $_libavdecoders | grep PNG_DECODER >/dev/null 2>&1" ; then
-    die "The GUI requires libavcodec with PNG support."
+    die "The GUI requires libavcodec with PNG support (needs zlib)."
   fi
 if not win32 ; then
   test "$_x11" != yes && die "X11 support required for GUI compilation."