merge wt-prefix64 into wt-prefix, autodetect WINEARCH

dotfiles/system/etc/zsh/zshrc

@@ -67,14 +67,16 @@ zres () {
 }
 
 # winetricks tools
-wt-prefix64() {
-	export WINEPREFIX="$HOME/.local/share/wineprefixes/$1"
-	unset WINEARCH
-}
-
 wt-prefix() {
-	wt-prefix64 "$1"
-	export WINEARCH="win32"
+	export WINEPREFIX="$HOME/.local/share/wineprefixes/$1"
+	
+	grep "#arch=win32" "${WINEPREFIX}/system.reg" > /dev/null
+	
+	if [[ $? -eq 0 ]]; then
+		export WINEARCH="win32"
+	else
+		unset WINEARCH
+	fi
 }
 
 wt-goto_c() {