Need a "do not strip" list, or better command-line arguments.

[adamv]

Stripping the Python executable breaks the use of dlopen(), which breaks readline in the shell and "import readline", "import zlib", etc. in programs.

Either need a "do not strip list" on formulas so keg.clean can skip files, or possibly some better stripology so we can strip Python and not break it; I have no idea what some "good" arguments might be in this case.

[adamv]

Implemented as a callback in formula here: http://github.com/adamv/homebrew/commit/fac9c3429debe6cc9af8e031804deeaae851304b

[mxcl]

Yeah agreed, I've seen stuff break on stripping before so I figured sooner or later this we'd need something like this.

[mxcl]

The Formula.skip_clean? function can take any file or path and will avoid all clean operations for that path.