added a downgrade check for bug 25230 (you have been warned)

1 files changed, 22 insertions, 1 deletions

diff --git a/sys-libs/glibc/glibc-2.3.2-r9.ebuild b/sys-libs/glibc/glibc-2.3.2-r9.ebuild
index b74b1ef3f008..9d334ad08229 100644
--- a/sys-libs/glibc/glibc-2.3.2-r9.ebuild
+++ b/sys-libs/glibc/glibc-2.3.2-r9.ebuild
@@ -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/sys-libs/glibc/glibc-2.3.2-r9.ebuild,v 1.28 2004/06/28 02:03:43 agriffis Exp $
+# $Header: /var/cvsroot/gentoo-x86/sys-libs/glibc/glibc-2.3.2-r9.ebuild,v 1.29 2004/07/05 01:24:31 genone Exp $
 
 IUSE="nls pic build nptl debug"
 
@@ -163,6 +163,27 @@ use_nptl() {
 }
 
 pkg_setup() {
+	# Check if we are going to downgrade, we don't like that
+	local old_version
+
+	old_version="`best_version glibc`"
+	old_version="${old_version/sys-libs\/glibc-/}"
+
+	if [ `python -c "import portage; print int(portage.vercmp(\"${PV}\",\"$old_version\"))"` -lt 0 ]; then
+		if [ "${FORCE_DOWNGRADE}" ]; then
+			ewarn "downgrading glibc, still not recommended, but we'll do as you wish"
+			return 0
+		else
+			eerror "Dowgrading glibc is not supported and we strongly recommend that"
+			eerror "you don't do it as it WILL break all applications compiled against"
+			eerror "the new version (most likely including python and portage)."
+			eerror "If you are REALLY sure that you want to do it set "
+			eerror "     FORCE_DOWNGRADE=1"
+			eerror "when you try it again."
+			die "glibc downgrade"
+		fi
+	fi
+
 	# We need gcc 3.2 or later ...
 	if [ "`gcc-major-version`" -ne "3" -o "`gcc-minor-version`" -lt "2" ]
 	then