diff --git a/dev/linux/build_installer_64_bits b/dev/linux/build_installer_64_bits
index 0fd7b9c3..8d0e2210 100755
--- a/dev/linux/build_installer_64_bits
+++ b/dev/linux/build_installer_64_bits
@@ -1,9 +1,29 @@
 #!/bin/bash
 
-if [[ $LOG4CPP_HOME != *"null"* ]]; then
-    echo "Releases require log4cpp_null rather than log4cpp. Stopping"
-    exit
-fi
+function checkMakeselfVersion()
+{
+    # Parse 'Makeself version #.#.#' to verify that makeself issue #32 is fixed so permissions
+    # of files/directories outside of the engauge install directory are not changed. Version
+    # 2.2.0 is known bad and version 2.4.0 is known good
+    MAJORGOT=`makeself -v | awk '{print $3}' | awk -F. '{print $1}'`
+    MINORGOT=`makeself -v | awk '{print $3}' | awk -F. '{print $2}'`
+    REVISIONGOT=`makeself -v | awk '{print $3}' | awk -F. '{print $3}'`
+    MAJORWANTED=2
+    MINORWANTED=4
+    REVISIONWANTED=0
+    BAD=0
+    if [ "$MAJORGOT" -lt "$MAJORWANTED" ]; then
+	BAD=1
+    elif [ "$MAJORGOT" -eq "$MAJORWANTED" ] && [ "$MINORGOT" -lt "$MINORWANTED" ]; then
+	BAD=1
+    fi
+    if (( $BAD )); then
+	echo "Releases require makeself version $MAJORWANTED.$MINORWANTED.$REVISIONWANTED or newer so issue #32 is fixed. Stopping"
+	exit
+    fi
+}
+
+checkMakeselfVersion
 
 export FROMQCH="$HOME/engauge-digitizer/bin/documentation/engauge.qch"
 export FROMQHC="$HOME/engauge-digitizer/bin/documentation/engauge.qhc"
@@ -25,7 +45,7 @@ read -p 'If the version numbers are correct, press Enter to continue'
 VERSION_NUMBER_CODE=`echo $VERSION_NUMBER_CODE | sed 's/\./_/g'`
 
 export STAGINGDIR=engauge
-export TRANSLATIONSDIR=engauge/translations
+export TRANSLATIONSDIR=$STAGINGDIR/translations
 export DOCDIR=$STAGINGDIR/documentation
 export IMAGEDIR=$STAGINGDIR/imageformats
 export PLATFORMSDIR=$STAGINGDIR/platforms
@@ -80,8 +100,6 @@ cp $HOME/Qt5.8/5.8/gcc_64/lib/libicui18n.so.56        $STAGINGDIR
 cp $HOME/Qt5.8/5.8/gcc_64/lib/libicuuc.so.56          $STAGINGDIR
 cp $HOME/Qt5.8/5.8/gcc_64/lib/libQt5XcbQpa.so.5       $STAGINGDIR
 cp /usr/lib/x86_64-linux-gnu/libGL.so                $STAGINGDIR
-cp $LOG4CPP_HOME/lib/liblog4cpp.so                   $STAGINGDIR
-cp $LOG4CPP_HOME/lib/liblog4cpp.so.1                 $STAGINGDIR
 cp $POPPLER_LIB/libpoppler.so                        $STAGINGDIR
 cp $POPPLER_LIB/libpoppler.so.66                     $STAGINGDIR
 cp $POPPLER_LIB/libpoppler-cpp.so                    $STAGINGDIR
@@ -103,7 +121,7 @@ cp $HOME/Qt5.8/5.8/gcc_64/plugins/sqldrivers/libqsqlite.so $SQLDIR
 echo "***Rebuilding release executable" &&
 export ENGAUGE_RELEASE=1 &&
 cd ../.. &&
-qmake engauge.pro CONFIG+=pdf &&
+qmake engauge.pro CONFIG+=pdf CONFIG+=log4cpp_null &&
 make clean &&
 make &&
 cd dev/linux
diff --git a/dev/linux/build_installer_cross_compile_to_32_bits b/dev/linux/build_installer_cross_compile_to_32_bits
index 041d6b99..aec1fca0 100755
--- a/dev/linux/build_installer_cross_compile_to_32_bits
+++ b/dev/linux/build_installer_cross_compile_to_32_bits
@@ -1,9 +1,29 @@
 #!/bin/bash
 
-if [[ $LOG4CPP_HOME != *"null"* ]]; then
-    echo "Releases require log4cpp_null rather than log4cpp. Stopping"
-    exit
-fi
+function checkMakeselfVersion()
+{
+    # Parse 'Makeself version #.#.#' to verify that makeself issue #32 is fixed so permissions
+    # of files/directories outside of the engauge install directory are not changed. Version
+    # 2.2.0 is known bad and version 2.4.0 is known good
+    MAJORGOT=`makeself -v | awk '{print $3}' | awk -F. '{print $1}'`
+    MINORGOT=`makeself -v | awk '{print $3}' | awk -F. '{print $2}'`
+    REVISIONGOT=`makeself -v | awk '{print $3}' | awk -F. '{print $3}'`
+    MAJORWANTED=2
+    MINORWANTED=4
+    REVISIONWANTED=0
+    BAD=0
+    if [ "$MAJORGOT" -lt "$MAJORWANTED" ]; then
+	BAD=1
+    elif [ "$MAJORGOT" -eq "$MAJORWANTED" ] && [ "$MINORGOT" -lt "$MINORWANTED" ]; then
+	BAD=1
+    fi
+    if (( $BAD )); then
+	echo "Releases require makeself version $MAJORWANTED.$MINORWANTED.$REVISIONWANTED or newer so issue #32 is fixed. Stopping"
+	exit
+    fi
+}
+
+checkMakeselfVersion
 
 export FROMQCH="$HOME/engauge-digitizer/bin/documentation/engauge.qch"
 export FROMQHC="$HOME/engauge-digitizer/bin/documentation/engauge.qhc"
@@ -25,7 +45,7 @@ read -p 'If the version numbers are correct, press Enter to continue'
 VERSION_NUMBER_CODE=`echo $VERSION_NUMBER_CODE | sed 's/\./_/g'`
 
 export STAGINGDIR=engauge
-export TRANSLATIONSDIR=engauge/translations
+export TRANSLATIONSDIR=$STAGINGDIR/translations
 export DOCDIR=$STAGINGDIR/documentation
 export IMAGEDIR=$STAGINGDIR/imageformats
 export PLATFORMSDIR=$STAGINGDIR/platforms
@@ -76,8 +96,6 @@ cp /usr/lib/i386-linux-gnu/libfftw3.so.3           $STAGINGDIR
 cp /usr/lib/i386-linux-gnu/libicudata.so.52        $STAGINGDIR
 cp /usr/lib/i386-linux-gnu/libicui18n.so.52        $STAGINGDIR
 cp /usr/lib/i386-linux-gnu/libicuuc.so.52          $STAGINGDIR
-cp $LOG4CPP_HOME/lib/liblog4cpp.so                 $STAGINGDIR
-cp $LOG4CPP_HOME/lib/liblog4cpp.so.5               $STAGINGDIR
 cp $POPPLER_LIB/libpoppler.so                      $STAGINGDIR
 cp $POPPLER_LIB/libpoppler.so.61                   $STAGINGDIR
 cp $POPPLER_LIB/libpoppler-cpp.so                  $STAGINGDIR
@@ -100,7 +118,7 @@ cp /usr/lib/i386-linux-gnu/qt5/plugins/sqldrivers/libqsqlite.so $SQLDIR
 echo "***Rebuilding release executable" &&
 export ENGAUGE_RELEASE=1 &&
 cd ../.. &&
-qmake engauge.pro CONFIG+=pdf &&
+qmake engauge.pro CONFIG+=pdf CONFIG+=log4cpp_null &&
 make clean &&
 make &&
 cd dev/linux
diff --git a/dev/linux/startup_script.run b/dev/linux/startup_script.run
index 90a26c0d..81e5f641 100755
--- a/dev/linux/startup_script.run
+++ b/dev/linux/startup_script.run
@@ -1,18 +1,24 @@
 #!/bin/bash
 
-read -e -p "Installation directory [/usr/local/engauge]:" -i "/usr/local/engauge" INSTALLDIR
+read -e -p "Installation directory [/usr/local/engauge]: " -i "/usr/local/engauge" INSTALLDIR
 
-PARENTDIR=$INSTALLDIR/..
+if [ -d "$INSTALLDIR" ]; then
+    echo "Warning: installation directory already exists. This installer will only install into an empty directory. If reinstalling then remove the old installation directory, otherwise append \"/engauge\" or similar to the installation directory"
+else
+    
+    PARENTDIR=$INSTALLDIR/..
 
-# First cp duplicates the recursive second cp, but gives a single tidy error about privileges if there is a privilege problem
-mkdir -p $INSTALLDIR &&
-cp engauge $INSTALLDIR &&
-cp -r . $INSTALLDIR &&
-EXECEXE=$INSTALLDIR/engauge.exe &&
-EXECSCRIPT=$INSTALLDIR/engauge &&
-mv $INSTALLDIR/engauge $EXECEXE &&
-echo "export LD_LIBRARY_PATH=$INSTALLDIR:$INSTALLDIR/platforms" >$EXECSCRIPT &&
-echo "$EXECEXE"                                                 >>$EXECSCRIPT &&
-chmod -R 755 $PARENTDIR &&
-chmod +x $EXECSCRIPT &&
-echo "Engauge Digitizer has been installed. Your PATH should include $INSTALLDIR"
+    # First cp duplicates the recursive second cp, but gives a single tidy error about privileges if there is a privilege problem
+    mkdir -p $INSTALLDIR &&
+    cp engauge $INSTALLDIR &&
+    cp -r . $INSTALLDIR &&
+    EXECEXE=$INSTALLDIR/engauge.exe &&
+    EXECSCRIPT=$INSTALLDIR/engauge &&
+    mv $INSTALLDIR/engauge $EXECEXE &&
+    echo "export LD_LIBRARY_PATH=$INSTALLDIR:$INSTALLDIR/platforms" >$EXECSCRIPT &&
+    echo "$EXECEXE"                                                 >>$EXECSCRIPT &&
+    chmod 755 $PARENTDIR &&
+    chmod -R 755 $INSTALLDIR &&
+    chmod +x $EXECSCRIPT &&
+    echo "Engauge Digitizer has been installed. Your PATH should include $INSTALLDIR"
+fi