diff --git a/winehelper b/winehelper
index e709853..f9051a1 100755
--- a/winehelper
+++ b/winehelper
@@ -364,9 +364,9 @@ try_copy_other_dll_to_pfx_32() {
 
 try_copy_wine_dll_to_pfx_64 () {
     if [[ "$WINEARCH" == "win64" ]] ; then
-        if [[ -d "${WINEDIR}/lib64/wine/x86_64-windows" ]]
-        then WINE_BUILD_DLL_64="${WINEDIR}/lib64/wine/x86_64-windows"
-        else WINE_BUILD_DLL_64="${WINEDIR}/lib64/wine"
+        if [[ -d "$WINEDIR/lib64/wine/x86_64-windows" ]]
+        then WINE_BUILD_DLL_64="$WINEDIR/lib64/wine/x86_64-windows"
+        else WINE_BUILD_DLL_64="$WINEDIR/lib64/wine"
         fi
         cmp -s "$WINE_BUILD_DLL_64/$1" "${WINEPREFIX}/drive_c/windows/system32/$(basename $1)" && return 0
         try_copy_file "$WINE_BUILD_DLL_64/$1" "${WINEPREFIX}/drive_c/windows/system32/" && return 0 || return 1
@@ -374,9 +374,9 @@ try_copy_wine_dll_to_pfx_64 () {
 }
 
 try_copy_wine_dll_to_pfx_32() {
-    if [[ -d "${WINEDIR}/lib/wine/i386-windows" ]]
-    then WINE_BUILD_DLL_32="${WINEDIR}/lib/wine/i386-windows"
-    else WINE_BUILD_DLL_32="${WINEDIR}/lib/wine"
+    if [[ -d "$WINEDIR/lib/wine/i386-windows" ]]
+    then WINE_BUILD_DLL_32="$WINEDIR/lib/wine/i386-windows"
+    else WINE_BUILD_DLL_32="$WINEDIR/lib/wine"
     fi
     if [[ "$WINEARCH" == "win64" ]] ; then
         cmp -s "$WINE_BUILD_DLL_32/$1" "${WINEPREFIX}/drive_c/windows/syswow64/$1" && return 0
@@ -702,53 +702,49 @@ init_wine_ver () {
         export WINEDIR="$WH_DIST_DIR/$WH_WINE_USE"
 
         if [[ ! -d "$WINEDIR" ]] ; then
-            WINE_URL="$CLOUD_URL/$WH_WINE_USE.tar.xz"
-            local WINE_PACKAGE="$WH_TMP_DIR/${WH_WINE_USE}.tar.xz"
-            if try_download "$WINE_URL" "$WINE_PACKAGE" check256sum \
-            && unpack "$WINE_PACKAGE" "$WH_DIST_DIR/"
-            then
-                echo "$WH_WINE_USE" > "$WH_DIST_DIR/$WH_WINE_USE/version"
-                try_remove_file "$WINE_PACKAGE"
-            fi
+            local wine_package="$WH_TMP_DIR/$WH_WINE_USE.tar.xz"
+            try_download "$CLOUD_URL/$WH_WINE_USE.tar.xz" "$wine_package" check256sum
+            unpack "$wine_package" "$WH_DIST_DIR/"
+            try_remove_file "$wine_package"
         fi
 
-        export WINE="${WINEDIR}/bin/wine"
-        export WINELOADER="${WINEDIR}/bin/wine"
-        export WINESERVER="${WINEDIR}/bin/wineserver"
+        [[ ! -f "$WINEDIR/version" ]] && echo "$WH_WINE_USE" > "$WINEDIR/version"
+
+        export WINE="$WINEDIR/bin/wine"
+        export WINELOADER="$WINEDIR/bin/wine"
+        export WINESERVER="$WINEDIR/bin/wineserver"
 
         if [[ -n "${PATH}" ]]
-        then export PATH="${WINEDIR}/bin:${PATH}"
-        else export PATH="${WINEDIR}/bin"
+        then export PATH="$WINEDIR/bin:${PATH}"
+        else export PATH="$WINEDIR/bin"
         fi
 
-        if [[ -n "${LD_LIBRARY_PATH}" ]]
-        then export LD_LIBRARY_PATH="${WINEDIR}/lib:${LD_LIBRARY_PATH}"
-        else export LD_LIBRARY_PATH="${WINEDIR}/lib"
+        var_ld_library_path_update "$WINEDIR/lib"
+        export WINEDLLPATH="$WINEDIR/lib/wine"
+
+        if [[ ! -d "$WINEDIR/lib64/wine" ]] \
+        && [[ -d "$WINEDIR/lib/wine/x86_64-unix" ]]
+        then
+            create_new_dir "$WINEDIR/lib64/"
+            try_force_link_dir "$WINEDIR/lib/wine/" "$WINEDIR/lib64/"
         fi
 
-        export WINEDLLPATH="${WINEDIR}/lib/wine"
-
-        if [[ -d "${WINEDIR}/lib/gstreamer-1.0" ]] ; then
-            export GST_PLUGIN_SYSTEM_PATH_1_0="${WINEDIR}/lib/gstreamer-1.0"
+        if [[ -d "$WINEDIR/lib64" ]] \
+        && [[ ! -L "$WINEDIR/lib64/wine" ]]
+        then
+            var_ld_library_path_update "$WINEDIR/lib64"
+            export WINEDLLPATH+=":$WINEDIR/lib64/wine"
         fi
 
-        [[ ! -f "${WINEDIR}/version" ]] && echo "${WH_WINE_USE}" > "${WINEDIR}/version"
-
-        if [[ ! -d "${WINEDIR}/lib64/wine" ]] && [[ -d "${WINEDIR}/lib/wine/x86_64-unix" ]] ; then
-            create_new_dir "${WINEDIR}/lib64/"
-            try_force_link_dir "${WINEDIR}/lib/wine/" "${WINEDIR}/lib64/"
-        fi
-
-        if [[ -d "${WINEDIR}/lib64" ]] ; then
-            export LD_LIBRARY_PATH+=":${WINEDIR}/lib64"
-            export WINEDLLPATH+=":${WINEDIR}/lib64/wine"
-            if [[ -d "${WINEDIR}/lib64/gstreamer-1.0" ]] ; then
-                export GST_PLUGIN_SYSTEM_PATH_1_0+=":${WINEDIR}/lib64/gstreamer-1.0"
+        if [[ -d "$WINEDIR/lib/gstreamer-1.0" ]] ; then
+            export GST_PLUGIN_SYSTEM_PATH_1_0="$WINEDIR/lib/gstreamer-1.0"
+            if [[ -d "$WINEDIR/lib64/gstreamer-1.0" ]] ; then
+                export GST_PLUGIN_SYSTEM_PATH_1_0+=":$WINEDIR/lib64/gstreamer-1.0"
             fi
         fi
 
         if [[ $WH_USE_CPCSP_PROXY == "1" ]] \
-        && ! grep -q "$CPCSP_PROXY_VER" "${WINEDIR}/cpcsp_proxy.ver"
+        && ! grep -q "$CPCSP_PROXY_VER" "$WINEDIR/cpcsp_proxy.ver"
         then
             CPCSP_PROXY_NAME="wine-cpcsp_proxy-$CPCSP_PROXY_VER"
             CPCSP_PROXY_URL="$CLOUD_URL/$CPCSP_PROXY_NAME.tar.xz"
@@ -756,16 +752,16 @@ init_wine_ver () {
             try_download "$CPCSP_PROXY_URL" "$WH_TMP_DIR/$CPCSP_PROXY_NAME.tar.xz" check256sum
             unpack "$WH_TMP_DIR/$CPCSP_PROXY_NAME.tar.xz" "$WH_TMP_DIR"
 
-            cp -fr "$WH_TMP_DIR/$CPCSP_PROXY_NAME/"i386-* "${WINEDIR}/lib/wine/"
-            if [[ -d "${WINEDIR}/lib64" ]] ; then
-                cp -fr "$WH_TMP_DIR/$CPCSP_PROXY_NAME/"x86_64-* "${WINEDIR}/lib64/wine/"
+            cp -fr "$WH_TMP_DIR/$CPCSP_PROXY_NAME/"i386-* "$WINEDIR/lib/wine/"
+            if [[ -d "$WINEDIR/lib64" ]] ; then
+                cp -fr "$WH_TMP_DIR/$CPCSP_PROXY_NAME/"x86_64-* "$WINEDIR/lib64/wine/"
             fi
             try_remove_dir "$WH_TMP_DIR/$CPCSP_PROXY_NAME"
-            echo "$CPCSP_PROXY_VER" > "${WINEDIR}/cpcsp_proxy.ver"
+            echo "$CPCSP_PROXY_VER" > "$WINEDIR/cpcsp_proxy.ver"
         fi
     else
         # use system WINE
-        if ! rpm -q "wine" 1>/dev/null ; then
+        if [[ ! -f "/usr/bin/wine" ]] ; then
             fatal "system WINE - not found."
         fi
         export WINEDIR="/usr"