-.TH "EMERGE" "1" "May 2011" "Portage VERSION" "Portage"
+.TH "EMERGE" "1" "Oct 2011" "Portage VERSION" "Portage"
.SH "NAME"
emerge \- Command\-line interface to the Portage system
.SH "SYNOPSIS"
A \fIset\fR is a convenient shorthand for a large group of
packages. Three sets are currently always available: \fBselected\fR,
\fBsystem\fR and \fBworld\fR. \fBselected\fR contains the user-selected
-"world" packages that are listed in \fB/var/lib/portage/world\fR,
-and nested sets that may be listed
-in \fB/var/lib/portage/world_sets\fR. \fBsystem\fR refers to a set of
+"world" packages that are listed in \fB/var/lib/portage/world\fR.
+\fBsystem\fR refers to a set of
packages deemed necessary for your system to run properly. \fBworld\fR
encompasses both the \fBselected\fR and \fBsystem\fR sets. [See
-\fBFILES\fR below for more information.] Other sets can exist depending
-on the current configuration. The default set configuration is located
-in the \fB/usr/share/portage/config/sets\fR directory. Note that a \fIset\fR
+\fBFILES\fR below for more information.] Note that a \fIset\fR
is generally used in conjunction with \fB\-\-update\fR. When used as
arguments to \fBemerge\fR sets have to be prefixed with \fB@\fR to be
recognized. Use the \fB\-\-list\-sets\fR action to display a list of
\-\-noreplace <atom>\fR. As a safety measure, depclean will not remove any
packages unless *all* required dependencies have been resolved. As a
consequence, it is often necessary to run \fIemerge \-\-update \-\-newuse
-\-\-deep @world\fR prior to depclean. Also note that
-depclean may break link level dependencies, especially when the
-\fB\-\-depclean\-lib\-check\fR option is disabled. Thus, it is
-recommended to use a tool such as \fBrevdep-rebuild\fR(1)
-in order to detect such breakage.
+\-\-deep @world\fR prior to depclean.
\fBWARNING:\fR
Inexperienced users are advised to use \fB\-\-pretend\fR with this
will be uninstalled. Always study the list of packages
to be cleaned for any obvious mistakes. Note that packages listed in
package.provided (see \fBportage\fR(5)) may be removed by
-depclean, even if they are part of the world set.
+depclean, even if they are part of the world set. Also note that
+depclean may break link level dependencies. Thus, it is
+recommended to use a tool such as \fBrevdep-rebuild\fR(1)
+in order to detect such breakage.
Depclean serves as a dependency aware
version of \fB\-\-unmerge\fR. When given one or more atoms, it will
unless the user has enabled FEATURES="metadata-transfer" in \fBmake.conf\fR(5).
.TP
.BR "\-\-prune " (\fB\-P\fR)
-\fBWARNING: This action can remove important packages!\fR Removes all but the
-highest installed version of a package from your system. Use \fB\-\-prune\fR
-together with \fB\-\-verbose\fR to show reverse dependencies or with
-\fB\-\-nodeps\fR to ignore all dependencies.
+Removes all but the highest installed version of a package from your
+system. Use \fB\-\-prune\fR together with \fB\-\-verbose\fR to show
+reverse dependencies or with \fB\-\-nodeps\fR to ignore all dependencies.
+\fBWARNING: This action can remove packages from your world file! Check
+the emerge output of the next \-\-depclean run carefully! Use
+\-\-depclean to avoid this issue.\fR
.TP
.BR \-\-regen
Causes portage to check and update the dependency cache of all ebuilds in the
\fBEMERGE_DEFAULT_OPTS\fR variable may be used to
disable this option by default in \fBmake.conf\fR(5).
.TP
+.BR "\-\-autounmask\-unrestricted\-atoms [ y | n ]"
+If \-\-autounmask is enabled, keyword and mask changes
+using the \'=\' operator will be written. With this
+option, \'>=\' operators will be used whenever possible.
+USE and license changes always use the latter behavior.
+.TP
+.BR "\-\-autounmask\-keep\-masks [ y | n ]"
+If \-\-autounmask is enabled, no package.unmask or ** keyword changes
+will be created. This leads to unsatisfied dependencies if
+no other solution exists.
+.TP
.BR "\-\-autounmask\-write [ y | n ]"
If \-\-autounmask is enabled, changes are written
to config files, respecting \fBCONFIG_PROTECT\fR and \fB\-\-ask\fR.
+If the corresponding package.* is a file, the changes are appended to
+it, if it is a directory, changes are written to the lexicographically
+last file. This way it is always ensured that the new changes take
+precedence over existing changes.
.TP
.BR \-\-backtrack=COUNT
Specifies an integer number of times to backtrack if
packages is to use \fBquickpkg\fR(1) which creates a tbz2 from the
live filesystem.
.TP
+.BR "\-\-buildpkg\-exclude " ATOMS
+A space separated list of package atoms for which
+no binary packages should be built. This option overrides all
+possible ways to enable building of binary packages.
+.TP
.BR "\-\-buildpkgonly " (\fB\-B\fR)
Creates binary packages for all ebuilds processed without actually
merging the packages. This comes with the caveat that all build-time
Using \fB\-\-with\-bdeps=y\fR together with \fB\-\-complete\-graph\fR makes
the graph as complete as possible.
.TP
+.BR "\-\-complete\-graph\-if\-new\-ver < y | n >"
+Trigger the \fB\-\-complete\-graph\fR behavior if an installed package
+version will change (upgrade or downgrade). This option is enabled by default.
+.TP
.BR \-\-config\-root=DIR
Set the \fBPORTAGE_CONFIGROOT\fR environment variable.
.TP
behavior with respect to build time dependencies that are not strictly
required.
.TP
-.BR "\-\-depclean\-lib\-check [ y | n ]"
-Account for library link-level dependencies during
-\fB\-\-depclean\fR and \fB\-\-prune\fR actions. This
-option is enabled by default. In some cases this can
-be somewhat time\-consuming. This option is ignored
-when FEATURES="preserve\-libs" is enabled in
-\fBmake.conf\fR(5), since any libraries that have
-consumers will simply be preserved.
+.BR "\-\-dynamic\-deps < y | n >"
+In dependency calculations, substitute the dependencies of installed
+packages with the dependencies of corresponding unbuilt ebuilds from
+source repositories. This causes the effective dependencies of
+installed packages to vary dynamically when source ebuild dependencies
+are modified. This option is enabled by default.
+
+\fBWARNING:\fR
+If you want to disable \-\-dynamic\-deps, then it may be necessary to
+first run \fBfixpackages\fR in order to get the best results. The
+\fBfixpackages\fR command performs two different operations that can
+also be performed separately by the `emaint \-\-fix moveinst` and
+`emaint \-\-fix movebin` commands (see \fBemaint\fR(1)).
.TP
.BR "\-\-emptytree " (\fB\-e\fR)
Reinstalls target atoms and their entire deep
been installed. Without this option, any packages, ebuilds, or deps
you specify on the command\-line \fBwill\fR cause Portage to remerge
the package, even if it is already installed. Note that Portage will
-not remerge dependencies by default. Also note that this option takes
-precedence over options such as \fB\-\-newuse\fR, preventing a package
-from being reinstalled even though the corresponding USE flag settings
-may have changed.
+not remerge dependencies by default.
.TP
.BR "\-\-nospinner"
Disables the spinner for the session. The spinner is active when the
\fBEMERGE_DEFAULT_OPTS\fR variable.
.TP
.BR "\-\-rebuild\-if\-new\-rev [ y | n ]"
-Rebuild packages when dependencies that are used at both build\-time and
-run\-time are built, if the dependency is not already installed with the
-same version and revision.
+Rebuild packages when build\-time dependencies are built from source, if the
+dependency is not already installed with the same version and revision.
.TP
.BR "\-\-rebuild\-if\-new\-ver [ y | n ]"
-Rebuild packages when dependencies that are used at both build\-time and
-run\-time are built, if the dependency is not already installed with the
-same version. Revision numbers are ignored.
+Rebuild packages when build\-time dependencies are built from source, if the
+dependency is not already installed with the same version. Revision numbers
+are ignored.
.TP
.BR "\-\-rebuild\-if\-unbuilt [ y | n ]"
-Rebuild packages when dependencies that are used at both build\-time and
-run\-time are built.
+Rebuild packages when build\-time dependencies are built from source.
.TP
.BR "\-\-rebuilt\-binaries [ y | n ]"
Replace installed packages with binary packages that have
\fB\-\-oneshot\fR behavior default.
.TP
.BR "\-\-selective [ y | n ]"
-This is similar to the \fB\-\-noreplace\fR option, except that it
-does not take precedence over options such as \fB\-\-newuse\fR.
+This is identical to the \fB\-\-noreplace\fR option.
Some options, such as \fB\-\-update\fR, imply \fB\-\-selective\fR.
Use \fB\-\-selective=n\fR if you want to forcefully disable
\fB\-\-selective\fR, regardless of options like \fB\-\-update\fR.
Here is a common list of files you will probably be interested in. For a
complete listing, please refer to the \fBportage\fR(5) man page.
.TP
-.B /usr/share/portage/config/sets/
-Contains the default set configuration.
-.TP
.B /var/lib/portage/world
Contains a list of all user\-specified packages. You can safely edit
this file, adding packages that you want to be considered in \fBworld\fR
projects / portage.git / blobdiff