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| Exherbo supports multilib natively, but it's not enabled by default yet.
| | TO DELETE, Multilib has been superseeded by Multiarch: http://exherbo.org/docs/multiarch.html |
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| First we enable the multilib profile by changing the profiles variable in arbor.conf.
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| {{File|/etc/paludis/repositories/arbor.conf|
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| <pre>
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| ...
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| profiles = ${location}/profiles/amd64/multilib
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| ...
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| </pre>
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| }}
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| Remove the CHOST entry from bashrc and either set C{,XX}FLAGS which apply to all C targets, or define individual ones.
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| {{File|/etc/paludis/bashrc|
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| <pre>
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| CFLAGS="-march=native -pipe -O2"
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| CXXFLAGS="${CFLAGS}"
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| #MULTIBUILD_C_32_USER_CFLAGS="-march=native -pipe -O2"
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| #MULTIBUILD_C_32_USER_CXXFLAGS="${MULTIBUILD_C_32_USER_CFLAGS}"
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| #MULTIBUILD_C_64_USER_CFLAGS="-march=native -pipe -O2"
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| #MULTIBUILD_C_64_USER_CXXFLAGS="${MULTIBUILD_C_64_USER_CFLAGS}"
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| </pre>
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| }}
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| {{Root|cave resolve skeleton-filesystem-layout -x1}}
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| Temporarily enable bootstrap and reinstall glibc, it will also pull in bootstrap-gcc.
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| {{File|/etc/paludis/options.conf|
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| <pre>
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| sys-libs/glibc bootstrap
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| </pre>
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| }}
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| {{Root|cave resolve glibc -x1}}
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| Temporarily disable openmp and reinstall gcc. If you intent to rebuild gcc afterwards you can also temporarily disable java, fortran, etc. to speed things up.
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| {{File|/etc/paludis/options.conf|
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| <pre>
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| sys-devel/gcc -fortran -java -openmp
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| </pre>
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| }}
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| {{Root|cave resolve gcc -x1}}
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| Switch to the new gcc, if not already active.
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| {{Root|eclectic gcc list}}
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| {{Root|eclectic gcc set -1}}
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| Remove the bootstrap OPTION from glibc in /etc/paludis/options.conf and reinstall it, also purging the now uneeded bootstrap-gcc.
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| {{Root|cave resolve glibc --purge '*/*' -x1}}
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| If you disabled some gcc options before in /etc/paludis/options.conf, you can now re-enable them and reinstall gcc.
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| {{Root|cave resolve gcc -x1}}
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| If you want to install for example Wine you may have to temporarily disable some OPTIONS to manually resolve blockers.
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| {{File|/etc/paludis/options.conf|
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| <pre>
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| sys-apps/util-linux -systemd -udev
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| sys-apps/dbus -systemd
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| </pre>
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| }}
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| Be sure to re-enable and reinstall the affected packages afterwards.
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TO DELETE, Multilib has been superseeded by Multiarch: http://exherbo.org/docs/multiarch.html