.bat file to help compile easier - dmd/build

[Michael P.]

Okay, so right now, I'm making a small game(Mario) using DAllegro. I use build, and every time, I have to type this in to compile my progress:

build mario alleg.lib

Now, I know it's not a lot of typing. But considering I type mario wrong every so often, and I generally want to execute it after, assuming there is not compiler errors, it takes time.
In a .bat file right now, I have this:

build mario alleg.lib
mario

But, mario will execute even if there are errors found by dmd.
Is there anything that I can use to see if errors were found, and if there isn't, execute it, and if there is, don't execute it?
DMD1.036, Windows XP, Build/Bud 3.04