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On Tue, 12 Jun 2018 11:31:32 -0700, Ian Zimmerman wrote: |
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> I have had it with compiling stuff from source on my laptop. It is just |
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> too slow. So I would like to create binary packages on my desktop and |
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> then just tell the laptop to use them. |
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> |
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> Simple enough, except that the desktop is AMD Phenom, and the laptop is |
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> Intel 64 bit Atom. Up to now, each system had unique CFLAGS to squeeze |
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> as much performance as possible. |
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> |
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> On the desktop: |
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> CFLAGS="-march=barcelona --param l1-cache-size=64 --param |
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> l1-cache-line-size=64 --param l2-cache-size=512 -O2 -pipe" |
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> |
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> On the laptop: |
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> CFLAGS="-march=ivybridge --param l1-cache-size=32 --param |
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> l1-cache-line-size=64 --param l2-cache-size=4096 -O2 -pipe" |
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> |
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> I don't want to give up these tunings, but from the wiki page [1] I can |
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> see no straightforward way to have different CFLAGS when compiling |
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> binary packages, from the normal CFLAGS when installing directly from |
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> source on the host system. Is the only way of doing this to set up a |
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> full-blown cross-development environment? |
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|
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Set up a container (or chroot but a container is easier to manage) |
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containing a copy of the root filesystem of the laptop. Tweak make.conf |
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to add buildpkg and set an appropriate PKGDIR. then you can just enter |
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the container/chroot and run your world update or whatever else you want |
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to emerge. |
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Now export the PKGDIR over NFS and mount it on the laptop and add |
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--usepkg to the portage default opts in make.conf. |
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-- |
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Neil Bothwick |
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|
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Don't judge a book by its movie. |
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