diff --git a/debian/dxvkroot/dxvk.debdata b/debian/dxvkroot/dxvk.debdata
index 7767613..552796c 100755
--- a/debian/dxvkroot/dxvk.debdata
+++ b/debian/dxvkroot/dxvk.debdata
@@ -26,6 +26,12 @@ pkg_gitver="git describe --long | sed 's/\-[a-z].*//; s/\-/\./; s/[a-z]//g'"
 pkg_installfile="./debian/install"
 pkg_controlfile="./debian/control"
 pkg_rulesfile="./debian/rules"
+pkg_compatfile="./debian/compat"
+
+########################################################
+# Debian compatibility flag
+
+pkg_debcompat="9"
 
 ########################################################
 # Debian rules file section
diff --git a/debian/dxvkroot/dxvkbuild.sh b/debian/dxvkroot/dxvkbuild.sh
index e014165..fd2c3ff 100755
--- a/debian/dxvkroot/dxvkbuild.sh
+++ b/debian/dxvkroot/dxvkbuild.sh
@@ -344,6 +344,8 @@ function compile_and_install_deb() {
   local _pkg_deps_build="${13}"
   local _pkg_deps_runtime="${14}"
   local _pkg_debbuilder="${15}"
+  local _pkg_debcompat="${16}"
+  local _pkg_compatfile="${17}"
 
 ############################
 # COMMON - ARRAY PARAMETER FIX
@@ -379,8 +381,7 @@ function compile_and_install_deb() {
 ############################
 
   function pkg_installcheck() {
-    RETURNVALUE=$(echo $(dpkg -s "${1}" &>/dev/null)$?)
-    return $RETURNVALUE
+    return $(echo $(dpkg -s "${1}" &>/dev/null)$?)
   }
 
 ############################
@@ -416,7 +417,7 @@ function compile_and_install_deb() {
     # Generate a list of missing dependencies
     local a=0
     for p in ${_pkg_list[@]}; do
-      if [[ $(pkg_installcheck ${p}) -eq 0 ]]; then
+      if [[ $(pkg_installcheck ${p})$? -eq 0 ]]; then
         local _validlist[$a]=${p}
         let a++
 
@@ -439,7 +440,7 @@ function compile_and_install_deb() {
 
     function pkg_configure() {
       if [[ $(sudo dpkg-reconfigure ${1} | grep "is broken or not fully installed") ]]; then
-        if [[ -v ${2} ]]; then
+        if [[ -v ${2} ]]; then
           pkg_localinstall ${2} ${1}
         else
           pkg_remoteinstall ${1}
@@ -457,7 +458,7 @@ function compile_and_install_deb() {
             altRemotepkg=$(echo ${altRemote} | awk -F ',' '{print $1}')
             altRemotever=$(echo ${altRemote} | awk -F ',' '{print $2}')
           if [[ "${_pkg_dep}" == "${altRemotepkg}" ]]; then
-            if [[ $(pkg_installcheck ${altRemotepkg}) -ne 0 ]]; then
+            if [[ $(pkg_installcheck ${altRemotepkg})$? -ne 0 ]]; then
 
               # TODO remove duplicate functionality
               if [[ $(apt-cache show "${altRemotepkg}" | grep -m1 -oP "(?<=^Version: )[0-9|\.]*" | sed 's/\.//g') < ${altRemotever} ]]; then
@@ -481,7 +482,7 @@ function compile_and_install_deb() {
         done
       fi
 
-      if [[ $(pkg_installcheck ${_pkg_dep}) -ne 0 ]]; then
+      if [[ $(pkg_installcheck ${_pkg_dep})$? -ne 0 ]]; then
         pkg_remoteinstall "${_pkg_dep}"
         pkg_configure "${_pkg_dep}"
       fi
@@ -571,6 +572,7 @@ function compile_and_install_deb() {
       pkg_override_debianfile "${_pkg_debinstall}" "${_pkg_installfile}"
       pkg_override_debianfile "${_pkg_debcontrol}" "${_pkg_controlfile}"
       pkg_override_debianfile "${_pkg_debrules}" "${_pkg_rulesfile}"
+      pkg_override_debianfile "${_pkg_debcompat}" "${_pkg_compatfile}"
 
     else
       echo -e "\e[1mERROR:\e[0m Error while downloading source of ${_pkg_name} package. Aborting\n"
@@ -722,7 +724,9 @@ function pkg_install_main() {
   "${pkg_rulesfile}" \
   "${pkg_deps_build}" \
   "${pkg_deps_runtime}" \
-  "${pkg_debbuilder}"
+  "${pkg_debbuilder}" \
+  "${pkg_debcompat}" \
+  "${pkg_compatfile}"
 
 }
 
diff --git a/debian/dxvkroot/glslang.debdata b/debian/dxvkroot/glslang.debdata
index 6f2db2d..8665694 100644
--- a/debian/dxvkroot/glslang.debdata
+++ b/debian/dxvkroot/glslang.debdata
@@ -23,6 +23,12 @@ pkg_gitver="git describe --long | sed 's/\-[a-z].*//; s/\-/\./; s/[a-z]//g'"
 pkg_installfile="./debian/install"
 pkg_controlfile="./debian/control"
 pkg_rulesfile="./debian/rules"
+pkg_compatfile="./debian/compat"
+
+########################################################
+# Debian compatibility flag
+
+pkg_debcompat="9"
 
 ########################################################
 # Debian rules file section
@@ -92,7 +98,7 @@ empty
 pkg_deps_build=(
 #${_coredeps[*]}
 'cmake'
-'python2.7'
+'python3'
 )
 
 # Runtime dependencies
diff --git a/debian/dxvkroot/meson.debdata b/debian/dxvkroot/meson.debdata
index 4356579..f9fc5f3 100755
--- a/debian/dxvkroot/meson.debdata
+++ b/debian/dxvkroot/meson.debdata
@@ -25,6 +25,12 @@ pkg_gitver="git describe --long | sed 's/\-[a-z].*//; s/\-/\./; s/[a-z]//g'"
 pkg_installfile="./debian/install"
 pkg_controlfile="./debian/control"
 pkg_rulesfile="./debian/rules"
+pkg_compatfile="./debian/compat"
+
+########################################################
+# Debian compatibility flag
+
+pkg_debcompat="9"
 
 ########################################################
 # Debian rules file section
diff --git a/debian/wineroot/winebuild.sh b/debian/wineroot/winebuild.sh
index 6e5680a..30b604d 100755
--- a/debian/wineroot/winebuild.sh
+++ b/debian/wineroot/winebuild.sh
@@ -71,6 +71,8 @@ wine_deps_build_amd64=(
 'libxi-dev:amd64'
 'libxt-dev:amd64'
 'libxmu-dev:amd64'
+'libgl-dev:amd64'
+'libglx-dev:amd64|optional'
 'libx11-dev:amd64'
 'libxext-dev:amd64'
 'libxfixes-dev:amd64'
@@ -123,6 +125,8 @@ wine_deps_build_i386=(
 'libxi-dev:i386'
 'libxt-dev:i386'
 'libxmu-dev:i386'
+'libgl-dev:i386'
+'libglx-dev:i386|optional'
 'libx11-dev:i386'
 'libxext-dev:i386'
 'libxfixes-dev:i386'
@@ -621,7 +625,8 @@ function WineDeps() {
     # Generate a list of missing/removable dependencies, depending on the logic
     local a=0
     for p in ${deplist[@]}; do
-      if [[ $(echo $(dpkg -s ${p} &>/dev/null)$?) -ne ${checkstatus} ]]; then
+      pf=$(printf "%s" ${p} | sed -r 's/^(.*)\|.*/\1/')
+      if [[ $(echo $(dpkg -s ${pf} &>/dev/null)$?) -ne ${checkstatus} ]]; then
         local validlist[$a]=${p}
         let a++
 
@@ -637,9 +642,16 @@ function WineDeps() {
     # Install missing/Remove existing dependencies, be informative
     local b=0
     for pkgdep in ${validlist[@]}; do
+
+      optional=0
+      if [[ ${pkgdep} =~ \|optional ]]; then
+        pkgdep=$(printf "%s" ${pkgdep} | sed -r 's/^(.*)\|.*/\1/')
+        optional=1
+      fi
+
       echo -e "$(( $b + 1 ))/$(( ${#validlist[*]} )) - ${str} ${depsname} dependency ${pkgdep}"
       eval ${mgrcmd} ${pkgdep} &> /dev/null
-      if [[ $? -eq 0 ]]; then
+      if [[ $? -eq 0 ]] || [[ ${optional} == 1 ]]; then
         let b++
       else
         echo -e "\n\e[1mERROR:\e[0m Error occured while processing ${pkgdep}. Aborting.\n"
@@ -840,7 +852,7 @@ function buildDebianArchive() {
   dh_make --createorig -s -y -c lgpl
   rm debian/*.{ex,EX}
   printf "usr/* /usr" > debian/install
-
+  printf "9" > debian/compat
   feed_debiancontrol
 
   # Start compilation process