diff --git a/configure.in b/configure.in
index 614e7968e0..cf4338e07b 100644
--- a/configure.in
+++ b/configure.in
@@ -641,7 +641,6 @@ dnl We allow people to disable image loaders explicitely, but if they don't we e
 dnl out so that people don't accidentally build without them.
 
 AC_ARG_WITH(libpng,  [  --without-libpng	  disable PNG loader for gdk-pixbuf])
-AC_ARG_WITH(libmng,  [  --without-libmng	  disable MNG loader for gdk-pixbuf])
 AC_ARG_WITH(libjpeg, [  --without-libjpeg	  disable JPEG loader for gdk-pixbuf])
 AC_ARG_WITH(libtiff, [  --without-libtiff	  disable TIFF loader for gdk-pixbuf])
 
@@ -745,31 +744,9 @@ dnl Test for libpng
 *** from CVS.])
   fi
 
-dnl Test for libmng
-  if test x$with_libmng != xno && test -z "$LIBMNG"; then
-     AC_CHECK_LIB(mng, mng_initialize,
-       [AC_CHECK_HEADER(libmng.h,
-          mng_ok=yes,
-          mng_ok=no)],
-        AC_MSG_WARN(*** MNG loader will not be built (MNG library not found) ***), -lz -lm)
-     AC_MSG_RESULT($mng_ok)
-     if test "$mng_ok" = yes; then
-       MNG='mng'; LIBMNG='-lmng -lz'
-     else
-        AC_MSG_WARN(*** MNG loader will not be built (MNG header file not found) ***)
-     fi
-  fi
-
-  REBUILD_PNGS=\#
-  if test -z "$LIBPNG"; then
-     REBUILD_PNGS=
-  fi
-  AC_SUBST(REBUILD_PNGS)
-
 AC_SUBST(LIBTIFF)
 AC_SUBST(LIBJPEG)
 AC_SUBST(LIBPNG)
-AC_SUBST(LIBMNG)
 
 AM_CONDITIONAL(BUILD_DYNAMIC_MODULES, $dynworks)
 
@@ -789,7 +766,7 @@ else
    fi
 fi
 
-all_loaders="png,mng,bmp,wbmp,gif,ico,jpeg,pnm,ras,tiff,xpm,tga"
+all_loaders="png,bmp,wbmp,gif,ico,jpeg,pnm,ras,tiff,xpm,tga"
 included_loaders=""
 # If no loaders specified, include all
 if test "x$with_included_loaders" = xyes ; then
@@ -824,7 +801,6 @@ AC_TYPE_SIGNAL
 
 AM_CONDITIONAL(HAVE_TIFF, test "x$LIBTIFF" != x)
 AM_CONDITIONAL(HAVE_PNG, test "x$LIBPNG" != x)
-AM_CONDITIONAL(HAVE_MNG, test "x$LIBMNG" != x)
 AM_CONDITIONAL(HAVE_JPEG, test "x$LIBJPEG" != x)
 
 if $dynworks ; then
@@ -838,11 +814,8 @@ if $dynworks ; then
   if echo "$included_loaders" | grep "\(^\|\,\)png\(\$\|\,\)" > /dev/null; then
     STATIC_LIB_DEPS="$STATIC_LIB_DEPS $LIBPNG"
   fi
-  if echo "$included_loaders" | grep "\(^\|\,\)mng\(\$\|\,\)" > /dev/null; then
-    STATIC_LIB_DEPS="$STATIC_LIB_DEPS $LIBMNG"
-  fi
 else
-  STATIC_LIB_DEPS="$LIBTIFF $LIBJPEG $LIBPNG $LIBMNG"
+  STATIC_LIB_DEPS="$LIBTIFF $LIBJPEG $LIBPNG"
 fi
 
 # Checks to see if we should compile in MMX support (there will be