Merge pull request #9330 from clemty/buildtool

make: don't assume luac is installed

make.ps1

@@ -180,6 +180,9 @@ elseif ($command -eq "check")
 }
 elseif ($command -eq "check-scripts")
 {
+	if ((Get-Command "luac.exe" -ErrorAction SilentlyContinue) -ne $null)
+	{
+		echo "Testing Lua scripts..."
 		foreach ($script in ls "mods/*/maps/*/*.lua")
 		{
 			luac -p $script
@@ -188,7 +191,12 @@ elseif ($command -eq "check-scripts")
 		{
 			luac -p $script
 		}
-	echo "Check successfull!"
+		echo "Check completed!"
+	}
+	else
+	{
+		echo "luac.exe could not be found. Please install Lua."
+	}
 }
 elseif ($command -eq "docs")
 {