Remove support for the MNG file format and the bundled libmng

The MNG file format is generally abandoned, and libmng has been
unmaintained for several years.

The MNG plugin and bundled libmng has been moved to the
qtimageformats project on Gerrit.

Task-number: QTBUG-21869
Change-Id: I946432347014ffde2b72307a5f8b166ca5553602
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@nokia.com>

1 files changed, 2 insertions, 50 deletions

diff --git a/configure b/configure
index 3e0bca1afe..bb997b1504 100755
--- a/configure
+++ b/configure
@@ -665,8 +665,6 @@ CFG_PNG=yes
 CFG_LIBPNG=auto
 CFG_JPEG=auto
 CFG_LIBJPEG=auto
-CFG_MNG=auto
-CFG_LIBMNG=auto
 CFG_XCURSOR=runtime
 CFG_XRANDR=runtime
 CFG_XRENDER=auto
@@ -1806,14 +1804,6 @@ while [ "$#" -gt 0 ]; do
             UNKNOWN_OPT=yes
         fi
         ;;
-    libmng)
-        [ "$VAL" = "yes" ] && VAL=qt
-        if [ "$VAL" = "qt" ] || [ "$VAL" = "no" ] || [ "$VAL" = "system" ]; then
-            CFG_LIBMNG="$VAL"
-        else
-            UNKNOWN_OPT=yes
-        fi
-        ;;
     libtiff)
         [ "$VAL" = "yes" ] && VAL=qt
         if [ "$VAL" = "qt" ] || [ "$VAL" = "no" ] || [ "$VAL" = "system" ]; then
@@ -3566,8 +3556,8 @@ Usage:  $relconf [-h] [-prefix <dir>] [-prefix-install] [-bindir <dir>] [-libdir
         [-plugin-sql-<driver>] [-system-sqlite]
         [-platform] [-D <string>] [-I <string>] [-L <string>] [-help]
         [-qt-zlib] [-system-zlib] [-no-gif] [-no-libtiff] [-qt-libtiff] [-system-libtiff]
-        [-no-libpng] [-qt-libpng] [-system-libpng] [-no-libmng] [-qt-libmng]
-        [-system-libmng] [-no-libjpeg] [-qt-libjpeg] [-system-libjpeg] [-make <part>]
+        [-no-libpng] [-qt-libpng] [-system-libpng]
+        [-no-libjpeg] [-qt-libjpeg] [-system-libjpeg] [-make <part>]
         [-nomake <part>] [-R <string>]  [-l <string>] [-no-rpath]  [-rpath] [-continue]
         [-verbose] [-v] [-silent] [-no-nis] [-nis] [-no-cups] [-cups] [-no-iconv]
         [-iconv] [-no-pch] [-pch] [-no-dbus] [-dbus] [-dbus-linked] [-no-gui]
@@ -3810,11 +3800,6 @@ Third Party Libraries:
  +  -system-libpng ..... Use libpng from the operating system.
                          See http://www.libpng.org/pub/png
 
-    -no-libmng ......... Do not compile MNG support.
-    -qt-libmng ......... Use the libmng bundled with Qt.
- +  -system-libmng ..... Use libmng from the operating system.
-                         See http://www.libmng.com
-
     -no-libjpeg ........ Do not compile JPEG support.
     -qt-libjpeg ........ Use the libjpeg bundled with Qt.
  +  -system-libjpeg .... Use libjpeg from the operating system.
@@ -4965,23 +4950,6 @@ if [ "$CFG_LIBTIFF" = "auto" ]; then
     fi
 fi
 
-# detect how mng should be built
-if [ "$CFG_MNG" = "auto" ]; then
-    if [ "$CFG_SHARED" = "yes" ]; then
-        CFG_MNG=plugin
-    else
-        CFG_MNG=yes
-    fi
-fi
-# detect mng
-if [ "$CFG_LIBMNG" = "auto" ]; then
-    if "$unixtests/compile.test" "$XQMAKESPEC" "$QMAKE_CONFIG" $OPT_VERBOSE "$relpath" "$outpath" config.tests/unix/libmng "libmng" $L_FLAGS $I_FLAGS $l_FLAGS $MAC_CONFIG_TEST_COMMANDLINE; then
-       CFG_LIBMNG=system
-    else
-       CFG_LIBMNG=qt
-    fi
-fi
-
 # detect png
 if [ "$CFG_LIBPNG" = "auto" ]; then
     if "$unixtests/compile.test" "$XQMAKESPEC" "$QMAKE_CONFIG" $OPT_VERBOSE "$relpath" "$outpath" config.tests/unix/libpng "libpng" $L_FLAGS $I_FLAGS $l_FLAGS $MAC_CONFIG_TEST_COMMANDLINE; then
@@ -6765,16 +6733,6 @@ if [ "$CFG_JPEG" = "no" ]; then
 elif [ "$CFG_JPEG" = "yes" ]; then
     QT_CONFIG="$QT_CONFIG jpeg"
 fi
-if [ "$CFG_LIBMNG" = "no" ]; then
-    CFG_MNG="no"
-elif [ "$CFG_LIBMNG" = "system" ]; then
-    QT_CONFIG="$QT_CONFIG system-mng"
-fi
-if [ "$CFG_MNG" = "no" ]; then
-    QT_CONFIG="$QT_CONFIG no-mng"
-elif [ "$CFG_MNG" = "yes" ]; then
-    QT_CONFIG="$QT_CONFIG mng"
-fi
 if [ "$CFG_LIBPNG" = "no" ]; then
     CFG_PNG="no"
 fi
@@ -7550,7 +7508,6 @@ QMakeVar set sql-plugins "$SQL_PLUGINS"
 [ "$CFG_TIFF" != "yes" ]     && QCONFIG_FLAGS="$QCONFIG_FLAGS QT_NO_IMAGEFORMAT_TIFF"
 [ "$CFG_PNG" != "yes" ]      && QCONFIG_FLAGS="$QCONFIG_FLAGS QT_NO_IMAGEFORMAT_PNG"
 [ "$CFG_JPEG" != "yes" ]     && QCONFIG_FLAGS="$QCONFIG_FLAGS QT_NO_IMAGEFORMAT_JPEG"
-[ "$CFG_MNG" != "yes" ]      && QCONFIG_FLAGS="$QCONFIG_FLAGS QT_NO_IMAGEFORMAT_MNG"
 [ "$CFG_ZLIB" != "yes" ]     && QCONFIG_FLAGS="$QCONFIG_FLAGS QT_NO_ZLIB"
 [ "$CFG_EXCEPTIONS" = "no" ] && QCONFIG_FLAGS="$QCONFIG_FLAGS QT_NO_EXCEPTIONS"
 [ "$CFG_SXE" = "no" ]        && QCONFIG_FLAGS="$QCONFIG_FLAGS QT_NO_SXE"
@@ -8049,11 +8006,6 @@ if [ "$CFG_PNG" = "no" ]; then
 else
     echo "PNG support ............ $CFG_PNG ($CFG_LIBPNG)"
 fi
-if [ "$CFG_MNG" = "no" ]; then
-    echo "MNG support ............ $CFG_MNG"
-else
-    echo "MNG support ............ $CFG_MNG ($CFG_LIBMNG)"
-fi
 echo "zlib support ........... $CFG_ZLIB"
 echo "Session management ..... $CFG_SM"
 if [ "$PLATFORM_QWS" = "yes" ]; then