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# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/eclass/db-use.eclass,v 1.6 2006/06/10 16:19:54 swegener Exp $
# This is a common location for functions that aid the use of sys-libs/db
inherit versionator multilib
#Convert a version to a db slot
db_ver_to_slot() {
if [ $# -ne 1 ]; then
eerror "Function db_ver_to_slot needs one argument" >&2
eerror "args given:" >&2
for f in $@
do
eerror " - \"$@\"" >&2
done
return 1
fi
echo -n "${1/.0/}"
}
#Find the version that correspond to the given atom
db_findver() {
if [ $# -ne 1 ]; then
eerror "Function db_findver needs one argument" >&2
eerror "args given:" >&2
for f in $@
do
eerror " - \"$@\"" >&2
done
return 1
fi
PKG="$(best_version $1)"
VER="$(get_version_component_range 1-2 "${PKG/*db-/}")"
if [ -d /usr/include/db$(db_ver_to_slot "$VER") ]; then
einfo "Found db version ${VER}" >&2
echo -n "$VER"
return 0
else
return 1
fi
}
# Get the include dir for berkeley db.
# This function has two modes. Without any arguments it will give the best
# version available. With arguments that form the versions of db packages
# to test for, it will aim to find the library corresponding to it.
db_includedir() {
if [ $# -eq 0 ]; then
VER="$(db_findver sys-libs/db)" || return 1
VER="$(db_ver_to_slot "$VER")"
echo "include version ${VER}" >&2
if [ -d "/usr/include/db${VER}" ]; then
echo -n "/usr/include/db${VER}"
return 0
else
eerror "sys-libs/db package requested, but headers not found" >&2
return 1
fi
else
#arguments given
for x in $@
do
if VER=$(db_findver "=sys-libs/db-${x}*") &&
[ -d "/usr/include/db$(db_ver_to_slot $VER)" ]; then
echo -n "/usr/include/db$(db_ver_to_slot $VER)"
return 0
fi
done
eerror "No suitable db version found"
return 1
fi
}
# Get the library name for berkeley db. Something like "db-4.2" will be the
# outcome. This function has two modes. Without any arguments it will give
# the best version available. With arguments that form the versions of db
# packages to test for, it will aim to find the library corresponding to it.
db_libname() {
if [ $# -eq 0 ]; then
VER="$(db_findver sys-libs/db)" || return 1
if [ -e "/usr/$(get_libdir)/libdb-${VER}.so" ]; then
echo -n "db-${VER}"
return 0
else
eerror "sys-libs/db package requested, but library not found" >&2
return 1
fi
else
#arguments given
for x in $@
do
if VER=$(db_findver "=sys-libs/db-${x}*"); then
if [ -e "/usr/$(get_libdir)/libdb-${VER}.so" ]; then
echo -n "db-${VER}"
return 0
fi
fi
done
eerror "No suitable db version found" >&2
return 1
fi
}
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