On Mon, 23 May 2011, Jeff King wrote: > On Mon, May 23, 2011 at 12:04:44AM -0700, Jakub Narebski wrote: > > > > So I think we are probably stuck either with the user setting an ANDROID > > > meta-flag that sets the other flags appropriately, or leaving it up to > > > the user to provide a sane config.mak. > > > > By the way, how well Git supports cross-compiling (which from the > > thread is necessity to generate binaries for Android)? `uname -a` > > trick works only when compiling on same machine. > > It should work fine if you set the make variables appropriately for the > target platform. But I've never tried it. Didn't msysgit people > cross-compile for a while (or maybe still do)? Well, the vague sketch of an idea is for Makefile to set uname_* variables depending on the contents of `host` / `HOST` build variable, so that detection is based on the target OS. > > ./configure supports --host and --build options, but I don't know if > > it pass them down to make somehow. ANDROID=YesPlease seems wasteful: > > what about setting HOST or MACHINE, or even uname_* variables, or just > > using Autoconf's `host` (in the form of CPU-VENDOR-OS)? > > I know very little about autoconf internals, but what would > CPU-VENDOR-OS look like? Your CPU is probably some arm variant, though > it will vary from device to device. Your kernel is Linux. The special > steps in this case are about some weird userspace issues. So the > equivalent would be more like finding a Linux distro that ships a crappy > libc. I guess that is what the "vendor" slot is for? Well, http://www.gmplib.org/list-archives/gmp-bugs/2011-January/002156.html says that it is $ ./configure --host=arm-linux-androideabi (though I am not sure if it shouldn't be arm-androideabi-linux instead). > But even if you somehow tell autoconf or the Makefile "yes, this is > android", you are still going to need to manually specify the set of > knobs that should be tweaked in that case. See first paragraph of my reply. > Whether you call it "ANDROID=YesPlease" or some other form. I think it is better to solve more generic issue of cross-compiling Git rather than solving narrow issue of cross-compiling Git on Android. Of course we still need the part that sets variables appropriately when we are compiling for Android (whether natively, or cross-compiling). -- Jakub Narebski Poland -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html