Support FEATURES={downgrade,unmerge}-backup

This will fix bug #156282 and bug #424275.

1 files changed, 12 insertions, 1 deletions

diff --git a/man/make.conf.5 b/man/make.conf.5
index 7d07344bd..876a8a330 100644
--- a/man/make.conf.5
+++ b/man/make.conf.5
@@ -1,4 +1,4 @@
-.TH "MAKE.CONF" "5" "May 2012" "Portage VERSION" "Portage"
+.TH "MAKE.CONF" "5" "Jul 2012" "Portage VERSION" "Portage"
 .SH "NAME"
 make.conf \- custom settings for Portage
 .SH "SYNOPSIS"
@@ -293,6 +293,12 @@ strangely configured Samba server (oplocks off, NFS re\-export). A tool
 /usr/lib/portage/bin/clean_locks exists to help handle lock issues
 when a problem arises (normally due to a crash or disconnect).
 .TP
+.B downgrade\-backup
+When a package is downgraded to a lower version, call \fBquickpkg\fR(1)
+in order to create a backup of the installed version before it is
+unmerged (if a binary package of the same version does not already
+exist). Also see the related \fIunmerge\-backup\fR feature.
+.TP
 .B ebuild\-locks
 Use locks to ensure that unsandboxed ebuild phases never execute
 concurrently. Also see \fIparallel\-install\fR.
@@ -514,6 +520,11 @@ continue to execute the remaining phases as if the failure had not occurred.
 Note that the test phase for a specific package may be disabled by masking
 the "test" \fBUSE\fR flag in \fBpackage.use.mask\fR (see \fBportage\fR(5)).
 .TP
+.B unmerge\-backup
+Call \fBquickpkg\fR(1) to create a backup of each package before it is
+unmerged (if a binary package of the same version does not already exist).
+Also see the related \fIdowngrade\-backup\fR feature.
+.TP
 .B unmerge\-logs
 Keep logs from successful unmerge phases. This is relevant only when
 \fBPORT_LOGDIR\fR is set.