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# Copyright 1999-2011 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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# $Header: /var/cvsroot/gentoo-x86/eclass/db-use.eclass,v 1.9 2010/05/12 11:19:29 flameeyes Exp $
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# This is a common location for functions that aid the use of sys-libs/db
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#
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# Bugs: pauldv@gentoo.org
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inherit versionator multilib
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#Convert a version to a db slot
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db_ver_to_slot() {
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if [ $# -ne 1 ]; then
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eerror "Function db_ver_to_slot needs one argument" >&2
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eerror "args given:" >&2
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for f in $@
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do
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eerror " - \"$@\"" >&2
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done
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return 1
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fi
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# 5.0.x uses 5.0 as slot value, so this replacement will break it;
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# older sys-libs/db might have been using this but it's no longer
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# the case, so make it work for latest rather than older stuff.
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# echo -n "${1/.0/}"
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echo -n "$1"
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}
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#Find the version that correspond to the given atom
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db_findver() {
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if [ $# -ne 1 ]; then
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eerror "Function db_findver needs one argument" >&2
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eerror "args given:" >&2
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for f in $@
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do
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eerror " - \"$@\"" >&2
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done
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return 1
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fi
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PKG="$(best_version $1)"
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VER="$(get_version_component_range 1-2 "${PKG/*db-/}")"
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if [ -d /usr/include/db$(db_ver_to_slot "$VER") ]; then
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#einfo "Found db version ${VER}" >&2
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echo -n "$VER"
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return 0
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else
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return 1
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fi
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}
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# Get the include dir for berkeley db.
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# This function has two modes. Without any arguments it will give the best
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# version available. With arguments that form the versions of db packages
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# to test for, it will aim to find the library corresponding to it.
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db_includedir() {
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if [ $# -eq 0 ]; then
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VER="$(db_findver sys-libs/db)" || return 1
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VER="$(db_ver_to_slot "$VER")"
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echo "include version ${VER}" >&2
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if [ -d "/usr/include/db${VER}" ]; then
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echo -n "/usr/include/db${VER}"
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return 0
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else
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eerror "sys-libs/db package requested, but headers not found" >&2
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return 1
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fi
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else
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#arguments given
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for x in $@
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do
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if VER=$(db_findver "=sys-libs/db-${x}*") &&
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[ -d "/usr/include/db$(db_ver_to_slot $VER)" ]; then
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echo -n "/usr/include/db$(db_ver_to_slot $VER)"
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return 0
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fi
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done
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eerror "No suitable db version found"
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return 1
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fi
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}
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# Get the library name for berkeley db. Something like "db-4.2" will be the
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# outcome. This function has two modes. Without any arguments it will give
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# the best version available. With arguments that form the versions of db
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# packages to test for, it will aim to find the library corresponding to it.
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db_libname() {
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if [ $# -eq 0 ]; then
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VER="$(db_findver sys-libs/db)" || return 1
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if [ -e "/usr/$(get_libdir)/libdb-${VER}.so" ]; then
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echo -n "db-${VER}"
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return 0
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else
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eerror "sys-libs/db package requested, but library not found" >&2
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return 1
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fi
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else
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#arguments given
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for x in $@
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do
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if VER=$(db_findver "=sys-libs/db-${x}*"); then
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if [ -e "/usr/$(get_libdir)/libdb-${VER}.so" ]; then
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echo -n "db-${VER}"
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return 0
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fi
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fi
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done
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eerror "No suitable db version found" >&2
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return 1
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fi
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}
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