I put together a little package to build a Mac OS X GRASS.app from GRASS source. It uses py2app (python) to do the dirty work, instead of the OnMyCommand droplet method I use in my binary distribution. See the readme for details. It's a bit rough.
<http://www.kyngchaos.com/files/macosxport/grass-macosxapp.zip>
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William Kyngesburye <kyngchaos@kyngchaos.com>
http://www.kyngchaos.com/
"Mon Dieu! but they are all alike. Cheating, murdering, lying, fighting, and all for things that the beasts of the jungle would not deign to possess - money to purchase the effeminate pleasures of weaklings. And yet withal bound down by silly customs that make them slaves to their unhappy lot while firm in the belief that they be the lords of creation enjoying the only real pleasures of existence....
- the wisdom of Tarzan