they both break library compatibility and break their environment (like when kde removed the widget toolbar and a whole lot of app suddenly stopped working)
sure you can have bunch of ifdef in the code, and an autoconf, and make sure you support a wide set of options, but that is basically the whole point, it makes for a painful experience and costlier, slower development (for closed source application that comes prepackaged)
sure you can have bunch of ifdef in the code, and an autoconf, and make sure you support a wide set of options, but that is basically the whole point, it makes for a painful experience and costlier, slower development (for closed source application that comes prepackaged)