I've tried to use XtenDS, and the new version called DSGameMaker, but everytime I compile the game, it gives the stupid make is not an operable command or something like that error. I was going to make an Arkanoid game, but this kept preventing me from it. It's easier to just use PAlib.
It was a pain in the dick to install.
Use these instructions:
QUOTEinstalling DS Game Maker
FOLLOW THESE DIRECTIONS EXACTLY OR IT *WILL* NOT WORK!!!
install devkitPro, run the devkitPro updater, just do as it says, but dont install it on any subfolders in the drive or it won't work. after installation there should be a folder called "devkitPro" in your drive C:/ (C:/devkitpro finally)
after installation go to C:\devkitPro in your hard drive. in that folder there should be a folder called "devkitARM" delete this folder
extract your old version devkitARM r21 (the one you downloaded) to C:\devkitPro in your hard drive.
click "start", right-click "my computer", click "properties", click "advanced" tab, click enviroment variables
under user variables for (yourusernamehere) click "new", for "variable name" put "PAPATH", for "variable value" put "C:/devkitPro/PAlib/"
under system variables click "new", for "variable name" put "DKP_HOME", for "variable value" put "C:\devkitPro"
click "OK"
Install PALib by extracting all content into C:\devkitPro folder