On Thu, 2007-03-29 at 22:42 -0400, Allin Cottrell wrote: > Does anyone have expertise/recommendations to share, on the > subject of compiling a GTK app on x86 Linux for the > powerpc-apple-darwin target? > > I'm familiar with the linux -> win32 cross. This is relatively > easy since mingw makes the win32 API available in a single > package, and Tor Lillqvist makes available the GTK dev material > for win32, plus various dependencies, also nicely packaged. > > I'm wondering if tarring up all the GTK+ stuff from a fink > installation on OS X, and dumping it into a suitable directory on > Linux, is going to get me anywhere (having built a suitable > binutils and cross-gcc first, of course).
First, see http://ranger.befunk.com/fink/darwin-cross/ . To build useful exes, though, you have to populate the cross environment with headers, libraries, and frameworks from the real OS X box. It's a bit tedious but doable. Here are some tips: - Place any .framework folders in the lib folder of the cross environment. - symlink any "Include" directories inside the frameworks to the include folder, but without the .framwork extension. In otherwords, symlink $CROSSROOT/lib/fooBar.framework/Headers to $CROSSROOT/include/fooBar - You'll have to go through each dylib and use the otool and install_name_tool command to find and fixup the linker paths to match your cross environment's directory structure. For example, many dylibs want to link against /usr/lib/libSystem.B.dylib. You'll have to use install_name_tool to change that to /path/to/cross/lib/libSystem.B.dylib. This does not affect your exes at all, unless you bundled a library with the exe, but then you'll want to use install_name_tool anyway to adjust the paths to be relative to the app bundle itself. For more information on this in general, see the following information that applies to more than just Qt: http://doc.trolltech.com/4.2/deployment-mac.html Right now I only have my OS X 10.3 PPC cross environment populated. I use it to, ahem, build Qt apps (app bundles and all) for OS X 10.3 or later from my Linux box. I have some scripts I used to do the fixups, which I may be able to e-mail to you. I cannot offer the cross environment for download anywhere because it contains actual apple libraries (the OS X runtime libraries and frameworks) that cannot be distributed. They'd have to come from your own licensed copy of OS X. I don't think it's currently possible to cross-compile GTK itself for Quartz (you can for X11, though), but once GTK is built, it's just a matter of transferring the headers, libraries, and frameworks to the linux environment. Michael > > Allin Cottrell > _______________________________________________ > gtk-app-devel-list mailing list > gtk-app-devel-list@gnome.org > http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list > _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
