diff --git a/.github/workflows/Linux.yml b/.github/workflows/Linux.yml
index 0ef059d45..5444cd6ed 100644
--- a/.github/workflows/Linux.yml
+++ b/.github/workflows/Linux.yml
@@ -39,7 +39,7 @@ jobs:
         sh scripts/${{ runner.os }}/2_deploy.sh
     - name: Build MeshLab AppImage
       run : |
-        sh scripts/${{ runner.os }}/3_appimage.sh
+        sh scripts/${{ runner.os }}/3_appimage.sh --${{ matrix.precision }}
     - name: Upload Meshlab Portable
       uses: actions/upload-artifact@v1
       with:
diff --git a/.github/workflows/MacOS.yml b/.github/workflows/MacOS.yml
index cd1b0210c..92219e0f9 100644
--- a/.github/workflows/MacOS.yml
+++ b/.github/workflows/MacOS.yml
@@ -26,10 +26,10 @@ jobs:
       shell: bash
       run: |
         if [ "${{matrix.precision}}" == "double_precision" ]; then
-          echo  ::set-output name=date::"$(cat ML_VERSION)d"
+          echo  ::set-output name=version::"$(cat ML_VERSION)d"
           echo  ::set-output name=artifact_suffix::"_double"
         else
-          echo  ::set-output name=date::"$(cat ML_VERSION)"
+          echo  ::set-output name=version::"$(cat ML_VERSION)"
           echo  ::set-output name=artifact_suffix::""
         fi
     - name: Configure and Build
@@ -40,10 +40,10 @@ jobs:
         sh scripts/${{ runner.os }}/2_deploy.sh
     - name: Create DMG
       run: |
-        sh scripts/${{ runner.os }}/3_dmg.sh
-        mv src/install/MeshLab${{steps.envs.outputs.date}}.dmg src/install/MeshLab${{steps.envs.outputs.date}}-macos.dmg
+        sh scripts/${{ runner.os }}/3_dmg.sh --${{ matrix.precision }}
+        mv src/install/MeshLab${{steps.envs.outputs.version}}.dmg src/install/MeshLab${{steps.envs.outputs.version}}-macos.dmg
     - name: Upload DMG
       uses: actions/upload-artifact@v1
       with:
         name: meshlab_macos_dmg${{steps.envs.outputs.artifact_suffix}}
-        path: src/install/MeshLab${{steps.envs.outputs.date}}-macos.dmg
+        path: src/install/MeshLab${{steps.envs.outputs.version}}-macos.dmg
diff --git a/scripts/Linux/2_deploy.sh b/scripts/Linux/2_deploy.sh
index f79692c62..0286656a9 100644
--- a/scripts/Linux/2_deploy.sh
+++ b/scripts/Linux/2_deploy.sh
@@ -11,31 +11,37 @@
 # You can give as argument the path where you installed MeshLab.
 
 SCRIPTS_PATH="$(dirname "$(realpath "$0")")"
+INSTALL_PATH=$SCRIPTS_PATH/../../src/install
 
 #checking for parameters
-if [ "$#" -eq 0 ]
-then
-    BUNDLE_PATH=$SCRIPTS_PATH/../../src/install
-else
-    BUNDLE_PATH=$(realpath $1)
-fi
+for i in "$@"
+do
+case $i in
+    -i=*|--install_path=*)
+    INSTALL_PATH="${i#*=}"
+    shift # past argument=value
+    *)
+          # unknown option
+    ;;
+esac
+done
 
-bash $SCRIPTS_PATH/resources/make_bundle.sh $BUNDLE_PATH
+bash $SCRIPTS_PATH/resources/make_bundle.sh $INSTALL_PATH
 
 export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$BUNDLE_PATH/usr/lib/meshlab
-$SCRIPTS_PATH/resources/linuxdeployqt $BUNDLE_PATH/usr/share/applications/meshlab.desktop \
+$SCRIPTS_PATH/resources/linuxdeployqt $INSTALL_PATH/usr/share/applications/meshlab.desktop \
   -bundle-non-qt-libs \
-  -executable=$BUNDLE_PATH/usr/lib/meshlab/plugins/libfilter_sketchfab.so \
-  -executable=$BUNDLE_PATH/usr/lib/meshlab/plugins/libio_3ds.so \
-  -executable=$BUNDLE_PATH/usr/lib/meshlab/plugins/libio_ctm.so
-  
+  -executable=$INSTALL_PATH/usr/lib/meshlab/plugins/libfilter_sketchfab.so \
+  -executable=$INSTALL_PATH/usr/lib/meshlab/plugins/libio_3ds.so \
+  -executable=$INSTALL_PATH/usr/lib/meshlab/plugins/libio_ctm.so
 
-chmod +x $BUNDLE_PATH/usr/bin/meshlab
-rm $BUNDLE_PATH/AppRun
 
-cp $SCRIPTS_PATH/resources/AppRunMeshLab $BUNDLE_PATH/
-mv $BUNDLE_PATH/AppRunMeshLab $BUNDLE_PATH/AppRun
-chmod +x $BUNDLE_PATH/AppRun
+chmod +x $INSTALL_PATH/usr/bin/meshlab
+rm $INSTALL_PATH/AppRun
+
+cp $SCRIPTS_PATH/resources/AppRunMeshLab $INSTALL_PATH/
+mv $INSTALL_PATH/AppRunMeshLab $INSTALL_PATH/AppRun
+chmod +x $INSTALL_PATH/AppRun
 
 #at this point, distrib folder contains all the files necessary to execute meshlab
-echo "$BUNDLE_PATH is now a self contained meshlab application"
+echo "$INSTALL_PATH is now a self contained meshlab application"
diff --git a/scripts/Linux/3_appimage.sh b/scripts/Linux/3_appimage.sh
index 7c9820543..6ef0cb569 100644
--- a/scripts/Linux/3_appimage.sh
+++ b/scripts/Linux/3_appimage.sh
@@ -10,20 +10,33 @@
 # and the AppImage will be placed in the parent directory (src)
 
 SCRIPTS_PATH="$(dirname "$(realpath "$0")")"
+INSTALL_PATH=$SCRIPTS_PATH/../../src/install
+ML_VERSION=$(cat $SCRIPTS_PATH/../../ML_VERSION)
+
 
 #checking for parameters
-if [ "$#" -eq 0 ]
-then
-    BUNDLE_PATH=$SCRIPTS_PATH/../../src/install
-else
-    BUNDLE_PATH=$(realpath $1)
-fi
+for i in "$@"
+do
+case $i in
+    -i=*|--install_path=*)
+    INSTALL_PATH="${i#*=}"
+    shift # past argument=value
+    ;;
+    --double_precision)
+    ML_VERSION=$ML_VERSIONd
+    shift # past argument=value
+    ;;
+    *)
+          # unknown option
+    ;;
+esac
+done
 
-PARENT_NAME="$(dirname $BUNDLE_PATH)"
+PARENT_NAME="$(dirname $INSTALL_PATH)"
 
-export VERSION=$(cat $SCRIPTS_PATH/../../ML_VERSION)
+export VERSION=$ML_VERSION
 
-$SCRIPTS_PATH/resources/appimagetool $BUNDLE_PATH
+$SCRIPTS_PATH/resources/appimagetool $INSTALL_PATH
 mv MeshLab-$VERSION*.AppImage $PARENT_NAME/MeshLab$VERSION-linux.AppImage
 
 #at this point, distrib folder contains all the files necessary to execute meshlab
diff --git a/scripts/Linux/make_it.sh b/scripts/Linux/make_it.sh
index c1af8df49..38cb5ba95 100644
--- a/scripts/Linux/make_it.sh
+++ b/scripts/Linux/make_it.sh
@@ -24,6 +24,7 @@ SOURCE_PATH=$SCRIPTS_PATH/../../src
 BUILD_PATH=$SOURCE_PATH/build
 INSTALL_PATH=$SOURCE_PATH/install
 CORES="-j4"
+DOUBLE_PRECISION_OPTION=""
 
 #check parameters
 for i in "$@"
@@ -41,6 +42,10 @@ case $i in
     CORES=$i
     shift # past argument=value
     ;;
+    --double_precision)
+    DOUBLE_PRECISION_OPTION="--double_precision"
+    shift # past argument=value
+    ;;
     *)
           # unknown option
     ;;
@@ -48,5 +53,5 @@ esac
 done
 
 sh $SCRIPTS_PATH/1_build.sh -b=$BUILD_PATH -i=$INSTALL_PATH $CORES
-sh $SCRIPTS_PATH/2_deploy.sh $INSTALL_PATH
-sh $SCRIPTS_PATH/3_appimages.sh $INSTALL_PATH
+sh $SCRIPTS_PATH/2_deploy.sh -i=$INSTALL_PATH
+sh $SCRIPTS_PATH/3_appimages.sh -i=$INSTALL_PATH $DOUBLE_PRECISION_OPTION
diff --git a/scripts/macOS/1_build.sh b/scripts/macOS/1_build.sh
index 9efa03de2..5d561e4f4 100644
--- a/scripts/macOS/1_build.sh
+++ b/scripts/macOS/1_build.sh
@@ -40,7 +40,7 @@ case $i in
     CORES=$i
     shift # past argument=value
     ;;
-    --double_precision*)
+    --double_precision)
     DOUBLE_PRECISION_OPTION="-DBUILD_WITH_DOUBLE_SCALAR=ON"
     shift # past argument=value
     ;;
diff --git a/scripts/macOS/2_deploy.sh b/scripts/macOS/2_deploy.sh
index d7c048c22..54b5850d8 100755
--- a/scripts/macOS/2_deploy.sh
+++ b/scripts/macOS/2_deploy.sh
@@ -14,16 +14,21 @@ realpath() {
 }
 
 SCRIPTS_PATH=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
+INSTALL_PATH=$SCRIPTS_PATH/../../src/install
+APPNAME="meshlab.app"
 
 #checking for parameters
-if [ "$#" -eq 0 ]
-then
-    INSTALL_PATH=$SCRIPTS_PATH/../../src/install
-else
-    INSTALL_PATH=$(realpath $1)
-fi
-
-APPNAME="meshlab.app"
+for i in "$@"
+do
+case $i in
+    -i=*|--install_path=*)
+    INSTALL_PATH="${i#*=}"
+    shift # past argument=value
+    *)
+          # unknown option
+    ;;
+esac
+done
 
 echo "Hopefully I should find " $INSTALL_PATH/$APPNAME
 
diff --git a/scripts/macOS/3_dmg.sh b/scripts/macOS/3_dmg.sh
index e941f4ec3..7391ee684 100755
--- a/scripts/macOS/3_dmg.sh
+++ b/scripts/macOS/3_dmg.sh
@@ -5,7 +5,7 @@
 #
 # Without given arguments, meshlab.app will be looked for in meshlab/distrib
 # folder. MeshLab DMG will be placed in the same directory of meshlab.app.
-# 
+#
 # You can give as argument the DISTRIB_PATH containing meshlab.app.
 
 #realpath function
@@ -13,15 +13,27 @@ realpath() {
     [[ $1 = /* ]] && echo "$1" || echo "$PWD/${1#./}"
 }
 
-SCRIPTS_PATH=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
+SCRIPTS_PATH=$(cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd)
+INSTALL_PATH=$SCRIPTS_PATH/../../src/install
+ML_VERSION=$(cat $SCRIPTS_PATH/../../ML_VERSION)
 
 #checking for parameters
-if [ "$#" -eq 0 ]
-then
-    INSTALL_PATH=$SCRIPTS_PATH/../../src/install
-else
-    INSTALL_PATH=$( realpath $1 )
-fi
+for i in "$@"
+do
+case $i in
+    -i=*|--install_path=*)
+    INSTALL_PATH="${i#*=}"
+    shift # past argument=value
+    ;;
+    --double_precision)
+    ML_VERSION=$ML_VERSIONd
+    shift # past argument=value
+    ;;
+    *)
+          # unknown option
+    ;;
+esac
+done
 
 if ! [ -e $INSTALL_PATH/meshlab.app -a -d $INSTALL_PATH/meshlab.app ]
 then
@@ -39,7 +51,7 @@ sed -i '' "s%SOURCE_PATH%$SOURCE_PATH%g" $SCRIPTS_PATH/resources/meshlab_dmg_fin
 rm -f $INSTALL_PATH/*.dmg
 
 echo "Running appdmg"
-appdmg $SCRIPTS_PATH/resources/meshlab_dmg_final.json $INSTALL_PATH/MeshLab$(cat $SCRIPTS_PATH/../../ML_VERSION).dmg
+appdmg $SCRIPTS_PATH/resources/meshlab_dmg_final.json $INSTALL_PATH/MeshLab$ML_VERSION.dmg
 
 rm $SCRIPTS_PATH/resources/meshlab_dmg_final.json