Hi everyone, I originally wrote the initial ledger homebrew formula. It took me a while to update my system to Mountain Lion and find some time to get acquainted with ledger's updated build process based on acprep and cmake.
I have made a pull-request¹, with some improvements, which allows me to build ledger 3.0 (HEAD) on Mountain Lion again. Let me know if it works for you. Cheers, Alexis ¹ https://github.com/mxcl/homebrew/pull/14730
