On Wed, 2010-09-01 at 17:00 +0200, Gerd Hoffmann wrote: > On 09/01/10 16:46, Andrew Haley wrote: > >>> rpm2cpio package | cpio -i - > >> > >> Isn't that easy, you'll have to do a bunch of fixups after doing so to > >> have things actually work. > > > > Usually not. Nine times out of ten, (probably 99 out of 100) all you > > need for cross-devel is the headers and the libraries, and they'll be > > in the right place after unpacking. The package doesn't have to work > > in that situation, it just has to be possible to build against it. > > You havn't tried that, have you? > > Last time I did I had to (a) move stuff from $sysroot/usr/... to > $sysroot/ to have compiler and linker find it. Also fixup paths in the > linker scripts (try 'cat /usr/lib64/libc.so'). Nothing really hard but > needs to be done. > > >> Also automagic fetching of packages (including dependencies) would > >> be nice. Upgrading them even nicer. > > > > Lots of things sould be nice. It's not an argument for not providing > > cross-compilers. > > It isn't mean to be one. > > >> Creating a script (or yum plugin?) doing all that is probably *much* > >> less work than creating tons of extra packages for userspace cross builds. > > > > Which we really shouldn't do. All this is irrelavant, and we're > > getting away from the core issue, which is about providing cross > > compilers. > > If we go add cross-compilers it would be quite useful to also have an > easy ways to cross-build userspace stuff so we are not limited to kernel > cross builds ... > > cheers, > Gerd What are the use cases for the cross-compilers? If these are to compliment the Fedora secondary archs, then compiling kernels is probably the main use of cross-compilers -- for example, on ARM, devices often need a custom kernel to go with a standard rootfs. Once you're up on the device, you can build there, or you can use koji. It's a principle of secondary archs that packages are built natively, either on hardware or in emulation. On the other hand, if you're trying to cross-compile userspace, that's a whole different thing -- a lot more work, and perhaps much less needed. -Chris -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
