diff options
Diffstat (limited to 'eclass/eutils.eclass')
| -rw-r--r-- | eclass/eutils.eclass | 53 |
1 files changed, 52 insertions, 1 deletions
diff --git a/eclass/eutils.eclass b/eclass/eutils.eclass index ce8857c3ecef..e86da0180ad5 100644 --- a/eclass/eutils.eclass +++ b/eclass/eutils.eclass @@ -1,6 +1,6 @@ # Copyright 1999-2004 Gentoo Foundation # Distributed under the terms of the GNU General Public License v2 -# $Header: /var/cvsroot/gentoo-x86/eclass/eutils.eclass,v 1.110 2004/10/02 17:47:48 iggy Exp $ +# $Header: /var/cvsroot/gentoo-x86/eclass/eutils.eclass,v 1.111 2004/10/04 05:40:01 eradicator Exp $ # # Author: Martin Schlemmer <azarah@gentoo.org> # @@ -1461,3 +1461,54 @@ set_arch_to_kernel() { set_arch_to_portage() { export ARCH="${EUTILS_ECLASS_PORTAGE_ARCH}" } + +# Jeremy Huddleston <eradicator@gentoo.org>: +# preserve_old_lib /path/to/libblah.so.0 +# preserve_old_lib_notify /path/to/libblah.so.0 +# +# These functions are useful when a lib in your package changes --soname. Such +# an example might be from libogg.so.0 to libogg.so.1. Removing libogg.so.0 +# would break packages that link against it. Most people get around this +# by using the portage SLOT mechanism, but that is not always a relevant +# solution, so instead you can add the following to your ebuilds: +# +# src_install() { +# ... +# preserve_old_lib /usr/$(get_libdir)/libogg.so.0 +# ... +# } +# +# pkg_postinst() { +# ... +# preserve_old_lib_notify /usr/$(get_libdir)/libogg.so.0 +# ... +# } + +preserve_old_lib() { + LIB=$1 + + if [ -n "${LIB}" -a -f "${ROOT}${LIB}" ]; then + SONAME=`basename ${LIB}` + DIRNAME=`dirname ${LIB}` + + dodir ${DIRNAME} + cp ${ROOT}${LIB} ${D}${DIRNAME} + touch ${D}${LIB} + fi +} + +preserve_old_lib_notify() { + LIB=$1 + + if [ -n "${LIB}" -a -f "${ROOT}${LIB}" ]; then + SONAME=`basename ${LIB}` + + einfo "An old version of an installed library was detected on your system." + einfo "In order to avoid breaking packages that link against is, this older version" + einfo "is not being removed. In order to make full use of this newer version," + einfo "you will need to execute the following command:" + einfo " revdep-rebuild --soname ${SONAME}" + einfo + einfo "After doing that, you can safely remove ${LIB}" + fi +} |