>>>>> On Wed, 03 May 2023, Ulrich Mueller wrote: > I wonder about the CONF_LIBDIR variable and the implementation of the > dolib* commands in Portage. These commands normally use the ABI and > LIBDIR_${ABI} variables from the profile to determine the library > directory (e.g. "lib" or "lib64").
> However, if either ABI or LIBDIR_${ABI} happens to be unset, there is a > two-stage fallback in place, first to the value of CONF_LIBDIR, then to > literal "lib" [1]: > LIBDIR_VAR="LIBDIR_${ABI}" > if [[ -n ${ABI} && -n ${!LIBDIR_VAR} ]] ; then > CONF_LIBDIR=${!LIBDIR_VAR} > fi > CONF_LIBDIR=${CONF_LIBDIR:-lib} > AFAICS the CONF_LIBDIR variable had been introduced in the 2004.3 > profile [2], but was replaced already in 2005 by the present > LIBDIR_${ABI} mechanism [3]. CONF_LIBDIR hasn't been assigned in > profiles ever since. > Presently there are some relics of CONF_LIBDIR in Portage's dolib* (see > above) , but it is not used in its econf or get_libdir functions. > Pkgcore doesn't use CONF_LIBDIR at all. PMS defines dolib in yet another > way [4] with an additional CONF_LIBDIR_OVERRIDE variable, which isn't > implemented in either of the two package managers. > Clearly this situation is not ideal, because a) dolib* and get_libdir > are not consistent with each other, and b) PMS, Portage, and Pkgcore > don't agree with each other. > Before we decide on possible ways to proceed with the issue, I want to > ask whether anyone still relies on CONF_LIBDIR for any purpose? > There is also bug 267159 [5] with some more details. Nobody has spoken up, therefore I believe the best way forward is to drop the variable, as suggested in bug 267159 [5] comment #4. I have posted a patch for PMS to gentoo-pms (unfortunately, archives still aren't working, but <20230505161017.7487-1-...@gentoo.org> is the Message-Id). A patch for multilib.eclass will follow later. Ulrich > [1] > https://gitweb.gentoo.org/proj/portage.git/tree/bin/ebuild-helpers/dolib?h=portage-3.0.47#n25 > [2] > https://gitweb.gentoo.org/archive/repo/gentoo-2.git/commit/?id=1482b856ad2a301c8eb2245a7c7265350af2691d > [3] > https://gitweb.gentoo.org/archive/repo/gentoo-2.git/commit/?id=054e484d8717a18622615e019e7cd62495365192 > [4] https://projects.gentoo.org/pms/8/pms.html#x1-129001r3 > [5] https://bugs.gentoo.org/267159
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