I just upgraded an old (2011) MacBook Air from Snow Leopard to Yosemite. My old MacVim didn't work, and the most recent precompiled version at SourceForge didn't work, so I compiled it myself, with no configure
additions.
I noticed that now when I open a gvim window, I see it expand from a central point, spreading out until it reaches its appropriate size. Not all windows do that; for example, when I open a new Terminal window, it just appears without any expanding effect. (I have "genie effect turned off in the Dock, by the way.)
Is the expanding window effect a feature in vim that I can turn off--perhaps with a compile-time option?
Or is the expanding window effect just a consequence of Yosemite's general slowness on this machine? Maybe MacVim always did this, but I didn't notice in SnowLeopard, because it happened too quickly. Maybe my Yosemite Terminal windows are doing this too, but the window-creation code in Terminal is more optimized than MacVim's (which wouldn't be surprising given that Terminal, unlike Vim, has to support only a single OS).
(I'd be happy to migrate this to AskDifferent.SE if that's appropriate. Doesn't seem like the best place for Vim questions, though. This is a programming question if it's about how vim is coded and how to compile it, but I'm not sure yet what kind of answer the question needs.)