diff --git a/macbuild/macbuildQt4-highsierra.sh b/macbuild/macbuildQt4-highsierra.sh
deleted file mode 100755
index 280ddab40..000000000
--- a/macbuild/macbuildQt4-highsierra.sh
+++ /dev/null
@@ -1,117 +0,0 @@
-#!/bin/bash
-
-#------------------------------------------------------------------------------
-# Using Qt 4.8.7 from Mac Ports.
-#
-# Ruby: OSX native
-# Python: OSX native
-#------------------------------------------------------------------------------
-MacRuby=/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/bin/ruby
-MacRubyInc=/System/Library/Frameworks/Ruby.framework/Headers
-MacRubyLib=/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/libruby.dylib
-
-MacPython=/System/Library/Frameworks/Python.framework/Versions/2.7/bin/python
-MacPythonInc=/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7
-MacPythonLib=/System/Library/Frameworks/Python.framework/Versions/2.7/lib/libpython2.7.dylib
-
-MacQMake=/opt/local/libexec/qt4/bin/qmake
-MacBinDir=./qt4.build.macos-highsierra
-MacBuildDir=./qt4.bin.macos-highsierra
-MacBuildLog=macbuildQt4-highsierra.log
-#------------------------------------------------------------------------------
-function WithRubyPython() {
-  ./build.sh                    \
-    -release                    \
-    -qmake      $MacQMake       \
-    -build      $MacBinDir      \
-    -bin        $MacBuildDir    \
-    -option     -j4             \
-    -with-qtbinding             \
-    -qt4                        \
-    -ruby       $MacRuby        \
-    -rbinc      $MacRubyInc     \
-    -rblib      $MacRubyLib     \
-    -python     $MacPython      \
-    -pyinc      $MacPythonInc   \
-    -pylib      $MacPythonLib 2>&1 | tee $MacBuildLog
-}
-#------------------------------------------------------------------------------
-function WithRuby() {
-  ./build.sh                    \
-    -release                    \
-    -qmake      $MacQMake       \
-    -build      $MacBinDir      \
-    -bin        $MacBuildDir    \
-    -option     -j4             \
-    -with-qtbinding             \
-    -qt4                        \
-    -ruby       $MacRuby        \
-    -rbinc      $MacRubyInc     \
-    -rblib      $MacRubyLib     \
-    -nopython   2>&1 | tee $MacBuildLog
-}
-#------------------------------------------------------------------------------
-function WithPython() {
-  ./build.sh                    \
-    -release                    \
-    -qmake      $MacQMake       \
-    -build      $MacBinDir      \
-    -bin        $MacBuildDir    \
-    -option     -j4             \
-    -with-qtbinding             \
-    -qt4                        \
-    -noruby                     \
-    -python     $MacPython      \
-    -pyinc      $MacPythonInc   \
-    -pylib      $MacPythonLib 2>&1 | tee $MacBuildLog
-}
-#------------------------------------------------------------------------------
-function WithoutRubytPython() {
-  ./build.sh                    \
-    -release                    \
-    -qmake      $MacQMake       \
-    -build      $MacBinDir      \
-    -bin        $MacBuildDir    \
-    -option     -j4             \
-    -with-qtbinding             \
-    -qt4                        \
-    -noruby                     \
-    -nopython   2>&1 | tee $MacBuildLog
-}
-#------------------------------------------------------------------------------
-function Usage() {
-    echo "++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++"
-    echo "This script is for building KLayout for macOS High Sierra"
-    echo " with Qt 4.8.7 from MacPorts"
-    echo ""
-    echo "USAGE:"
-    echo "  $0  < 0 | 1 | 2 | 3 >"
-    echo "        0: support neither Ruby nor Python"
-    echo "        1: support both Ruby and Python"
-    echo "        2: support Ruby only"
-    echo "        3: support Python only"
-    echo "++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++"
-    echo ""
-}
-#------------------------------------------------------------------------------
-if [ $# -ne 1 ]; then
-    Usage
-    exit
-else
-    if [ "$1" = "0" ]; then
-        WithoutRubytPython
-    elif [ "$1" = "1" ]; then
-        WithRubyPython
-    elif [ "$1" = "2" ]; then
-        WithRuby
-    elif [ "$1" = "3" ]; then
-        WithPython
-    else
-        Usage
-        exit
-    fi
-fi
-#----------
-# EOF
-#----------
-
diff --git a/macbuild/macbuildQt4-yosemite.sh b/macbuild/macbuildQt4-yosemite.sh
deleted file mode 100755
index 9c619726d..000000000
--- a/macbuild/macbuildQt4-yosemite.sh
+++ /dev/null
@@ -1,115 +0,0 @@
-#!/bin/bash
-#------------------------------------------------------------------------------
-# Using Qt 4.8.7 from Mac Ports.
-#
-# Ruby: OSX native
-# Python: OSX native
-#------------------------------------------------------------------------------
-MacRuby=/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby
-MacRubyInc=/System/Library/Frameworks/Ruby.framework/Headers
-MacRubyLib=/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/libruby.dylib
-
-MacPython=/System/Library/Frameworks/Python.framework/Versions/2.7/bin/python
-MacPythonInc=/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7
-MacPythonLib=/System/Library/Frameworks/Python.framework/Versions/2.7/lib/libpython2.7.dylib
-
-MacQMake=/opt/local/libexec/qt4/bin/qmake
-MacBinDir=./qt4.build.macos-yosemite
-MacBuildDir=./qt4.bin.macos-yosemite
-MacBuildLog=macbuildQt4-yosemite.log
-#------------------------------------------------------------------------------
-function WithRubyPython() {
-  ./build.sh                    \
-    -release                    \
-    -qmake      $MacQMake       \
-    -build      $MacBinDir      \
-    -bin        $MacBuildDir    \
-    -option     -j4             \
-    -with-qtbinding             \
-    -qt4                        \
-    -ruby       $MacRuby        \
-    -rbinc      $MacRubyInc     \
-    -rblib      $MacRubyLib     \
-    -python     $MacPython      \
-    -pyinc      $MacPythonInc   \
-    -pylib      $MacPythonLib 2>&1 | tee $MacBuildLog
-}
-#------------------------------------------------------------------------------
-function WithRuby() {
-  ./build.sh                    \
-    -release                    \
-    -qmake      $MacQMake       \
-    -build      $MacBinDir      \
-    -bin        $MacBuildDir    \
-    -option     -j4             \
-    -with-qtbinding             \
-    -qt4                        \
-    -ruby       $MacRuby        \
-    -rbinc      $MacRubyInc     \
-    -rblib      $MacRubyLib     \
-    -nopython   2>&1 | tee $MacBuildLog
-}
-#------------------------------------------------------------------------------
-function WithPython() {
-  ./build.sh                    \
-    -release                    \
-    -qmake      $MacQMake       \
-    -build      $MacBinDir      \
-    -bin        $MacBuildDir    \
-    -option     -j4             \
-    -with-qtbinding             \
-    -qt4                        \
-    -noruby                     \
-    -python     $MacPython      \
-    -pyinc      $MacPythonInc   \
-    -pylib      $MacPythonLib 2>&1 | tee $MacBuildLog
-}
-#------------------------------------------------------------------------------
-function WithoutRubytPython() {
-  ./build.sh                    \
-    -release                    \
-    -qmake      $MacQMake       \
-    -build      $MacBinDir      \
-    -bin        $MacBuildDir    \
-    -option     -j4             \
-    -with-qtbinding             \
-    -qt4                        \
-    -noruby                     \
-    -nopython   2>&1 | tee $MacBuildLog
-}
-#------------------------------------------------------------------------------
-function Usage() {
-    echo "++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++"
-    echo "This script is for building KLayout for Mac OSX Yosemite"
-    echo " with Qt 4.8.7 from MacPorts"
-    echo ""
-    echo "USAGE:"
-    echo "  $0  < 0 | 1 | 2 | 3 >"
-    echo "        0: support neither Ruby nor Python"
-    echo "        1: support both Ruby and Python"
-    echo "        2: support Ruby only"
-    echo "        3: support Python only"
-    echo "++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++"
-    echo ""
-}
-#------------------------------------------------------------------------------
-if [ $# -ne 1 ]; then
-    Usage
-    exit
-else
-    if [ "$1" = "0" ]; then
-        WithoutRubytPython
-    elif [ "$1" = "1" ]; then
-        WithRubyPython
-    elif [ "$1" = "2" ]; then
-        WithRuby
-    elif [ "$1" = "3" ]; then
-        WithPython
-    else
-        Usage
-        exit
-    fi
-fi
-#----------
-# EOF
-#----------
diff --git a/macbuild/macbuildQt5-highsierra.sh b/macbuild/macbuildQt5-highsierra.sh
deleted file mode 100755
index 8d3a0bb8e..000000000
--- a/macbuild/macbuildQt5-highsierra.sh
+++ /dev/null
@@ -1,116 +0,0 @@
-#!/bin/bash
-
-#------------------------------------------------------------------------------
-# Using Qt 5.9.3 from Mac Ports.
-#
-# Ruby: OSX native
-# Python: OSX native
-#------------------------------------------------------------------------------
-MacRuby=/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/bin/ruby
-MacRubyInc=/System/Library/Frameworks/Ruby.framework/Headers
-MacRubyLib=/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/libruby.dylib
-
-MacPython=/System/Library/Frameworks/Python.framework/Versions/2.7/bin/python
-MacPythonInc=/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7
-MacPythonLib=/System/Library/Frameworks/Python.framework/Versions/2.7/lib/libpython2.7.dylib
-
-MacQMake=/opt/local/libexec/qt5/bin/qmake
-MacBinDir=./qt5.build.macos-highsierra
-MacBuildDir=./qt5.bin.macos-highsierra
-MacBuildLog=macbuildQt5-highsierra.log
-#------------------------------------------------------------------------------
-function WithRubyPython() {
-  ./build.sh                    \
-    -release                    \
-    -qmake      $MacQMake       \
-    -build      $MacBinDir      \
-    -bin        $MacBuildDir    \
-    -option     -j4             \
-    -with-qtbinding             \
-    -qt5                        \
-    -ruby       $MacRuby        \
-    -rbinc      $MacRubyInc     \
-    -rblib      $MacRubyLib     \
-    -python     $MacPython      \
-    -pyinc      $MacPythonInc   \
-    -pylib      $MacPythonLib 2>&1 | tee $MacBuildLog
-}
-#------------------------------------------------------------------------------
-function WithRuby() {
-  ./build.sh                    \
-    -release                    \
-    -qmake      $MacQMake       \
-    -build      $MacBinDir      \
-    -bin        $MacBuildDir    \
-    -option     -j4             \
-    -with-qtbinding             \
-    -qt5                        \
-    -ruby       $MacRuby        \
-    -rbinc      $MacRubyInc     \
-    -rblib      $MacRubyLib     \
-    -nopython   2>&1 | tee $MacBuildLog
-}
-#------------------------------------------------------------------------------
-function WithPython() {
-  ./build.sh                    \
-    -release                    \
-    -qmake      $MacQMake       \
-    -build      $MacBinDir      \
-    -bin        $MacBuildDir    \
-    -option     -j4             \
-    -with-qtbinding             \
-    -qt5                        \
-    -noruby                     \
-    -python     $MacPython      \
-    -pyinc      $MacPythonInc   \
-    -pylib      $MacPythonLib 2>&1 | tee $MacBuildLog
-}
-#------------------------------------------------------------------------------
-function WithoutRubytPython() {
-  ./build.sh                    \
-    -release                    \
-    -qmake      $MacQMake       \
-    -build      $MacBinDir      \
-    -bin        $MacBuildDir    \
-    -option     -j4             \
-    -with-qtbinding             \
-    -qt5                        \
-    -noruby                     \
-    -nopython   2>&1 | tee $MacBuildLog
-}
-#------------------------------------------------------------------------------
-function Usage() {
-    echo "++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++"
-    echo "This script is for building KLayout for macOS High Sierra"
-    echo " with Qt 5.9.3 from MacPorts"
-    echo ""
-    echo "USAGE:"
-    echo "  $0  < 0 | 1 | 2 | 3 >"
-    echo "        0: support neither Ruby nor Python"
-    echo "        1: support both Ruby and Python"
-    echo "        2: support Ruby only"
-    echo "        3: support Python only"
-    echo "++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++"
-    echo ""
-}
-#------------------------------------------------------------------------------
-if [ $# -ne 1 ]; then
-    Usage
-    exit
-else
-    if [ "$1" = "0" ]; then
-        WithoutRubytPython
-    elif [ "$1" = "1" ]; then
-        WithRubyPython
-    elif [ "$1" = "2" ]; then
-        WithRuby
-    elif [ "$1" = "3" ]; then
-        WithPython
-    else
-        Usage
-        exit
-    fi
-fi
-#----------
-# EOF
-#----------
diff --git a/macbuild/macbuildQt5-yosemite.sh b/macbuild/macbuildQt5-yosemite.sh
deleted file mode 100755
index 6ecea529e..000000000
--- a/macbuild/macbuildQt5-yosemite.sh
+++ /dev/null
@@ -1,115 +0,0 @@
-#!/bin/bash
-#------------------------------------------------------------------------------
-# Using Qt 5.8.0 from Mac Ports.
-#
-# Ruby: OSX native
-# Python: OSX native
-#------------------------------------------------------------------------------
-MacRuby=/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby
-MacRubyInc=/System/Library/Frameworks/Ruby.framework/Headers
-MacRubyLib=/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/libruby.dylib
-
-MacPython=/System/Library/Frameworks/Python.framework/Versions/2.7/bin/python
-MacPythonInc=/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7
-MacPythonLib=/System/Library/Frameworks/Python.framework/Versions/2.7/lib/libpython2.7.dylib
-
-MacQMake=/opt/local/libexec/qt5/bin/qmake
-MacBinDir=./qt5.build.macos-yosemite
-MacBuildDir=./qt5.bin.macos-yosemite
-MacBuildLog=macbuildQt5-yosemite.log
-#------------------------------------------------------------------------------
-function WithRubyPython() {
-  ./build.sh                    \
-    -release                    \
-    -qmake      $MacQMake       \
-    -build      $MacBinDir      \
-    -bin        $MacBuildDir    \
-    -option     -j4             \
-    -with-qtbinding             \
-    -qt5                        \
-    -ruby       $MacRuby        \
-    -rbinc      $MacRubyInc     \
-    -rblib      $MacRubyLib     \
-    -python     $MacPython      \
-    -pyinc      $MacPythonInc   \
-    -pylib      $MacPythonLib 2>&1 | tee $MacBuildLog
-}
-#------------------------------------------------------------------------------
-function WithRuby() {
-  ./build.sh                    \
-    -release                    \
-    -qmake      $MacQMake       \
-    -build      $MacBinDir      \
-    -bin        $MacBuildDir    \
-    -option     -j4             \
-    -with-qtbinding             \
-    -qt5                        \
-    -ruby       $MacRuby        \
-    -rbinc      $MacRubyInc     \
-    -rblib      $MacRubyLib     \
-    -nopython   2>&1 | tee $MacBuildLog
-}
-#------------------------------------------------------------------------------
-function WithPython() {
-  ./build.sh                    \
-    -release                    \
-    -qmake      $MacQMake       \
-    -build      $MacBinDir      \
-    -bin        $MacBuildDir    \
-    -option     -j4             \
-    -with-qtbinding             \
-    -qt5                        \
-    -noruby                     \
-    -python     $MacPython      \
-    -pyinc      $MacPythonInc   \
-    -pylib      $MacPythonLib 2>&1 | tee $MacBuildLog
-}
-#------------------------------------------------------------------------------
-function WithoutRubytPython() {
-  ./build.sh                    \
-    -release                    \
-    -qmake      $MacQMake       \
-    -build      $MacBinDir      \
-    -bin        $MacBuildDir    \
-    -option     -j4             \
-    -with-qtbinding             \
-    -qt5                        \
-    -noruby                     \
-    -nopython   2>&1 | tee $MacBuildLog
-}
-#------------------------------------------------------------------------------
-function Usage() {
-    echo "++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++"
-    echo "This script is for building KLayout for Mac OSX Yosemite"
-    echo " with Qt 5.8.0 from MacPorts"
-    echo ""
-    echo "USAGE:"
-    echo "  $0  < 0 | 1 | 2 | 3 >"
-    echo "        0: support neither Ruby nor Python"
-    echo "        1: support both Ruby and Python"
-    echo "        2: support Ruby only"
-    echo "        3: support Python only"
-    echo "++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++"
-    echo ""
-}
-#------------------------------------------------------------------------------
-if [ $# -ne 1 ]; then
-    Usage
-    exit
-else
-    if [ "$1" = "0" ]; then
-        WithoutRubytPython
-    elif [ "$1" = "1" ]; then
-        WithRubyPython
-    elif [ "$1" = "2" ]; then
-        WithRuby
-    elif [ "$1" = "3" ]; then
-        WithPython
-    else
-        Usage
-        exit
-    fi
-fi
-#----------
-# EOF
-#----------