[gentoo-alt] RE: Cross EPREFIX portage

[Markus Duft]

>
> >
> > Hi!
>
> Right after clicking "send" I found a bug in the patch which I
> introduced while cleaning it up for submission :) attached is now a
> working version, which has just a small change: the setting of
> config_root is now done differently, since the config class can be
> instantiated multiple times for different prefix installations...
>
> Cheers, Markus

BTW: here is a proof, that it works:

(2) mduft transactions $ echo $EPREFIX 
/opt/gentoo.windows
(2) mduft transactions $ emerge -pve db openssl openldap

These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild   R   ] sys-devel/gnuconfig-20080123  for x86-interix 0 kB
[ebuild   R   ] sys-libs/ncurses-5.6-r2  for x86-interix USE="-debug -doc
(-gpm) -minimal -nocxx -profile -trace (-unicode)" 0 kB
[ebuild   R   ] app-arch/lzma-utils-4.32.7  for x86-interix USE="-nocxx" 0
kB
[ebuild   R   ] sys-libs/onc-rpc-nt-1.14.1 to /opt/gentoo.windows for
x86-winnt 0 kB
[ebuild   R   ] sys-libs/zlib-1.2.3-r01.1  for x86-interix 0 kB
[ebuild   R   ] sys-apps/diffutils-2.8.7-r2  for x86-interix USE="-nls
-static" 0 kB
[ebuild   R   ] sys-apps/findutils-4.4.0  for x86-interix USE="-nls
(-selinux) -static" 0 kB
[ebuild   R   ] sys-devel/automake-wrapper-3-r1  for x86-interix 0 kB
[ebuild   R   ] sys-devel/autoconf-wrapper-5  for x86-interix 0 kB
[ebuild   R   ] sys-libs/zlib-1.2.3-r01.1 to /opt/gentoo.windows for
x86-winnt 0 kB
[ebuild   R   ] sys-devel/m4-1.4.11  for x86-interix USE="-examples -nls" 0
kB
[ebuild   R   ] sys-devel/bison-2.3  for x86-interix USE="-nls -static" 0 kB
[ebuild   R   ] sys-devel/libperl-5.8.8-r2  for x86-interix USE="-berkdb
-debug -gdbm -ithreads" 0 kB
[ebuild   R   ] dev-lang/perl-5.8.8-r5  for x86-interix USE="-berkdb -build
-debug -doc -gdbm -ithreads -perlsuid" 0 kB
[ebuild   R   ] sys-apps/help2man-1.36.4  for x86-interix USE="-nls" 0 kB
[ebuild   R   ] perl-core/Test-Harness-3.13  for x86-interix 0 kB
[ebuild   R   ] perl-core/PodParser-1.35  for x86-interix 0 kB
[ebuild   R   ] sys-apps/texinfo-4.12  for x86-interix USE="-nls -static" 0
kB
[ebuild   R   ] sys-devel/autoconf-2.61-r2  for x86-interix USE="(-emacs)" 0
kB
[ebuild   R   ] sys-devel/automake-1.10.1-r1  for x86-interix 0 kB
[ebuild   R   ] sys-devel/libtool-1.5.26  for x86-interix USE="-vanilla" 0
kB
[ebuild   R   ] sys-apps/coreutils-6.12-r1  for x86-interix USE="-acl -nls
(-selinux) -static -vanilla -xattr" 0 kB
[ebuild   R   ] app-shells/bash-3.2_p39  for x86-interix USE="-afs
-bashlogger -examples% -nls -plugins -vanilla" 0 kB
[ebuild   R   ] sys-apps/debianutils-2.30  for x86-interix USE="-static" 0
kB
[ebuild   R   ] app-admin/perl-cleaner-1.05  for x86-interix 0 kB
[ebuild   R   ] dev-libs/openssl-0.9.8h-r1 to /opt/gentoo.windows for
x86-winnt USE="zlib -bindist -gmp -kerberos (-sse2) -test" 0 kB
[ebuild   R   ] app-misc/ca-certificates-20080809-r00.1 to
/opt/gentoo.windows for x86-winnt 0 kB
[ebuild   R   ] dev-libs/openssl-0.9.8h-r1  for x86-interix USE="zlib
-bindist -gmp -kerberos (-sse2) -test" 0 kB
[ebuild     U ] app-misc/ca-certificates-20080809-r00.1 [20080809] for
x86-interix 0 kB
[ebuild   R   ] sys-devel/binutils-config-1.9-r04.12  for x86-interix 0 kB
[ebuild   R   ] sys-devel/binutils-2.18-r3  for x86-interix USE="-multislot
-multitarget -nls -test -vanilla" 17 kB
[ebuild   R   ] sys-devel/gcc-config-1.4.0-r04.5  for x86-interix 0 kB
[ebuild   R   ] sys-libs/db-4.5.20_p2-r1 to /opt/gentoo.windows for
x86-winnt USE="-bootstrap -doc -java -nocxx -tcl -test" 0 kB
[ebuild   R   ] sys-libs/db-4.6.21_p3-r1 to /opt/gentoo.windows for
x86-winnt USE="-bootstrap -doc -java -nocxx -tcl -test" 0 kB
[ebuild   R   ] net-nds/openldap-2.3.43 to /opt/gentoo.windows for x86-winnt
USE="berkdb ssl -crypt -debug -gdbm (-ipv6) -kerberos -minimal -odbc
-overlays -perl -samba -sasl (-selinux) -slp -smbkrb5passwd -tcpd
(-ncurses%)" 0 kB

Total: 35 packages (1 upgrade, 34 reinstalls), Size of downloads: 17 kB
(2) mduft transactions $ find /opt/gentoo.windows/usr/lib/ -name 'libdb*'
/opt/gentoo.windows/usr/lib/libdb-4.5.a
/opt/gentoo.windows/usr/lib/libdb-4.5.la
/opt/gentoo.windows/usr/lib/libdb-4.5.so
/opt/gentoo.windows/usr/lib/libdb-4.5.so.dll
/opt/gentoo.windows/usr/lib/libdb-4.6.a
/opt/gentoo.windows/usr/lib/libdb-4.6.la
/opt/gentoo.windows/usr/lib/libdb-4.6.so
/opt/gentoo.windows/usr/lib/libdb-4.6.so.dll
/opt/gentoo.windows/usr/lib/libdb.a
/opt/gentoo.windows/usr/lib/libdb.so
/opt/gentoo.windows/usr/lib/libdb_cxx-4.5.a
/opt/gentoo.windows/usr/lib/libdb_cxx-4.5.la
/opt/gentoo.windows/usr/lib/libdb_cxx-4.5.so
/opt/gentoo.windows/usr/lib/libdb_cxx-4.5.so.dll
/opt/gentoo.windows/usr/lib/libdb_cxx-4.6.a
/opt/gentoo.windows/usr/lib/libdb_cxx-4.6.la
/opt/gentoo.windows/usr/lib/libdb_cxx-4.6.so
/opt/gentoo.windows/usr/lib/libdb_cxx-4.6.so.dll
/opt/gentoo.windows/usr/lib/libdb_cxx.a
/opt/gentoo.windows/usr/lib/libdb_cxx.so

Hehe :) Cheers, Markus

>
> >
> > Some time ago I talked on this list about my plans on using portage
> to
> > emerge packages for native Windows under Interix. To be able to do
> > this, haubi and I had to "help" portage a little :) we now have a
> patch
> > ready with which this is possible. Not only windows draws advantages
> > out of the patch, but now it is possible to create a "child" prefix.
> > You can create a base EPREFIX, which contains a system that doesn't
> > change too often, and then merge packages to different prefixes
> > building upon that parent prefix.
> >
> > For now, only DEPEND's are resolved from the parent EPREFIX --
> RDEPEND
> > and PDEPEND *must* be installed in the child EPREFIX. If a DEPEND
> > cannot be merged into the parent prefix, portage tries to merge is to
> > the child.
> >
> > Maybe some of you can have a brief look at the patch, and if there
> are
> > no objections, I'd like to add the patch to the portage ebuild
> > conditionally with a USE flag for more testing. If it does not
> destroy
> > anything (I greatly doubt that it does...), it would be great to see
> it
> > going into svn...
> >
> > P.S.: haubi wrote up some comments on the patch and other things... I
> > attached them as-is, so ask haubi :)
> > P.S.S.: the patch is against anonsvn-checked-out trunk of prefix
> > branch...
> >
> > Cheers, Markus