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On Tue, Oct 28, 2008 at 17:40, Andreas Zuber <zuber@××××××.ch> wrote: |
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>> BAD Cross Compile support? |
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> |
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> I tried to cross compile several packages (gdm, gtkmm, xorg-server...).. It |
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> always failed somewhere. There was also a Problem that emerge said the |
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> package is masked for ~amd64, but i tried to compile packages for arm... |
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Hell yes, it occured to me too (but with ~x86). It's because there's |
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build dependencies. |
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The concept may seems nice, but sometimes it's a problem. |
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In the end, I took paludis (no offence), there's no crosscompile |
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support at all, but it's easier |
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if you know what to do (add "pretend" packages and so on). |
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|
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> How would you call that? Good Cross Compile support? |
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> |
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>> I've got shy of 900 pkgs for that exact CHOST all cross compiled. |
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>> Perl is about the only problem. But then perl does not really belong on |
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>> a phone either.. |
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> |
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> Maybe you now say that the packages i try to compile do not belong on a phone |
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> too.. but this doesn't make it better. |
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> |
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> I'm not a specialist in writing ebuilds or make them cross compiling aware so |
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> i try another way to get gentoo on my freerunner. |
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|
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With paludis, some patches/ebuilds and some "provided" packets I'm able to |
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build xorg-server and gtk+ on the FreeRunner. |
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About cross-compilation in portage, for me, ebuilds are not really |
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granular enough |
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to be able to fine-tune them for cross-compilation, and I don't know if the |
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DEPEND/RDEPEND thing is (currently) good or bad for cross-compilation. |
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|
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For example, Xorg protos are listed as build depends ("DEPEND=", see libX11 |
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for example). |
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What does really this mean? Install those packages on the host system like any |
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other package? And if the required version is ~arch, is it mandatory to update |
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the host system to be able to install a package on the target system? |
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And then packages have to include those files, but I really don't know how this |
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should be done. |
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|
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Gentoo is not the only problem here, there's bugs in many other |
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places, like libtool, |
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which reorders parameters, which is really a problem if you're using --sysroot. |
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(the workaround is using "triplet-gcc --sysroot=..." as CC) |
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|
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And there's a problem with autoconf too, when it wants to know some properties |
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of the target system (what does malloc(0) returns? what's the size of |
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<insert type here>, ...). |
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Systems like scratchbox seems to be a solution to a part of the cross |
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compilation |
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problem, it may be great to be able to use something like that, |
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especially if it's |
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integrated in the package manager. |
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Anyway, everything is not bad, for example I think that crossdev is |
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really a good thing! |
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I think that everything is not done about all of this, so it's interesting! |
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Regards, |
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-- |
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Damien "tuXXX" Thebault |
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