Are you launching with NSTask or some other variant? If so it won't work. You need to use Launch Services instead. I think there are some low-level APIs to use to launch with a specific architecture, but if you can use LS it handles all the dirty work for you.
On Apr 8, 2010, at 8:53 AM, Oleg Krupnov wrote: > This would be a perfect solution, but I've found that on Leopard, this > key seems to be ignored, the system still launches my app in 64-bit > mode (via Finder). > > What may I be doing wrong? > > Thanks! > > On Thu, Apr 8, 2010 at 7:28 AM, Kevin Wojniak <kain...@kainjow.com> wrote: >> In your Info.plist add: >> >> <key>LSMinimumSystemVersionByArchitecture</key> >> <dict> >> <key>x86_64</key> >> <string>10.6.0</string> >> </dict> >> >> >> Kevin >> >> >> On Apr 8, 2010, at 7:21 AM, Oleg Krupnov wrote: >> >>> Hi, >>> >>> While it's good for my app to run in 64-bit mode on Snow Leopard, it >>> turns out not desirable on Leopard, because of the delay of loading >>> all 64-bit frameworks (in case if my app is the first 64-bit app >>> launched after system boot). It literally makes me wait for about ten >>> seconds, and the performance gain of my app in 64-bit mode is >>> definitely not worth it on Leopard. >>> >>> My app is assembled as a universal binary that supports 3 >>> architectures: 32-bit intel, 32-bit ppc and 64-bit intel. Obviously, >>> the system chooses the best architecture it can run, which is 64-bit >>> intel in case of Leopard. >>> >>> Is there a way to change that and force my app to run in 32 bit mode on >>> Leopard? >>> >>> I would hate to have to supply two versions, one for Leopard and >>> another one for Snow Leopard. >>> >>> Thanks! >>> _______________________________________________ >>> >>> Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) >>> >>> Please do not post admin requests or moderator comments to the list. >>> Contact the moderators at cocoa-dev-admins(at)lists.apple.com >>> >>> Help/Unsubscribe/Update your Subscription: >>> http://lists.apple.com/mailman/options/cocoa-dev/kainjow%40kainjow.com >>> >>> This email sent to kain...@kainjow.com >> >> _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
