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GNU Stow. -END-INFO-DIR-ENTRY - - This file describes GNU Stow version 2.0.2, a program for managing -the installation of software packages. - - Software and documentation Copyright (C) 1993, 1994, 1995, 1996 by -Bob Glickstein . Copyright (C) 2000, 2001 -Guillaume Morin . Copyright (C) 2007 Kahlil (Kal) -Hodgson . - - Permission is granted to make and distribute verbatim copies of this -manual provided the copyright notice and this permission notice are -preserved on all copies. - - Permission is granted to copy and distribute modified versions of -this manual under the conditions for verbatim copying, provided also -that the section entitled "GNU General Public License" is included with -the modified manual, and provided that the entire resulting derived -work is distributed under the terms of a permission notice identical to -this one. - - Permission is granted to copy and distribute translations of this -manual into another language, under the above conditions for modified -versions, except that this permission notice may be stated in a -translation approved by the Free Software Foundation. - - -File: stow.info, Node: Top, Next: Introduction, Prev: (dir), Up: (dir) - - This manual describes GNU Stow 2.0.2, a program for managing the -installation of software packages. - -* Menu: - -* Introduction:: Description of Stow. -* Terminology:: Terms used by this manual. -* Invoking Stow:: Option summary. -* Installing Packages:: Using Stow to install. -* Deleting Packages:: Using Stow to uninstall. -* Conflicts:: When Stow can't stow. -* Deferred Operation:: Using two passes to stow. -* Mixing Operations:: Multiple actions per invocation. -* Multiple Stow Directories:: Further segregating software. -* Target Maintenance:: Cleaning up mistakes. -* Resource Files:: Setting default command line options. -* Compile-time vs Install-time:: Faking out `make install'. -* Bootstrapping:: When stow and perl are not yet stowed. -* Reporting Bugs:: How, what, where, and when to report. -* Known Bugs:: Don't report any of these. -* GNU General Public License:: Copying terms. -* Index:: Index of concepts. - - --- The Detailed Node Listing --- - -Compile-time and install-time - -* GNU Emacs:: -* Other FSF Software:: -* Cygnus Software:: -* Perl and Perl 5 Modules:: - - -File: stow.info, Node: Introduction, Next: Terminology, Prev: Top, Up: Top - -1 Introduction -************** - -Stow is a tool for managing the installation of multiple software -packages in the same run-time directory tree. One historical difficulty -of this task has been the need to administer, upgrade, install, and -remove files in independent packages without confusing them with other -files sharing the same file system space. For instance, it is common to -install Perl and Emacs in `/usr/local'. When one does so, one winds up -with the following files(1) in `/usr/local/man/man1': - - a2p.1 - ctags.1 - emacs.1 - etags.1 - h2ph.1 - perl.1 - s2p.1 - -Now suppose it's time to uninstall Perl. Which man pages get removed? -Obviously `perl.1' is one of them, but it should not be the -administrator's responsibility to memorize the ownership of individual -files by separate packages. - - The approach used by Stow is to install each package into its own -tree, then use symbolic links to make it appear as though the files are -installed in the common tree. Administration can be performed in the -package's private tree in isolation from clutter from other packages. -Stow can then be used to update the symbolic links. The structure of -each private tree should reflect the desired structure in the common -tree; i.e. (in the typical case) there should be a `bin' directory -containing executables, a `man/man1' directory containing section 1 man -pages, and so on. - - Stow was inspired by Carnegie Mellon's Depot program, but is -substantially simpler and safer. Whereas Depot required database files -to keep things in sync, Stow stores no extra state between runs, so -there's no danger (as there was in Depot) of mangling directories when -file hierarchies don't match the database. Also unlike Depot, Stow will -never delete any files, directories, or links that appear in a Stow -directory (e.g., `/usr/local/stow/emacs'), so it's always possible to -rebuild the target tree (e.g., `/usr/local'). - - For information about the latest version of Stow, you can refer to -http://www.gnu.org/software/stow/. - - ---------- Footnotes ---------- - - (1) As of Perl 4.036 and Emacs 19.22. - - -File: stow.info, Node: Terminology, Next: Invoking Stow, Prev: Introduction, Up: Top - -2 Terminology -************* - - A "package" is a related collection of files and directories that -you wish to administer as a unit -- e.g., Perl or Emacs -- and that -needs to be installed in a particular directory structure -- e.g., with -`bin', `lib', and `man' subdirectories. - - A "target directory" is the root of a tree in which one or more -packages wish to _appear_ to be installed. A common, but by no means -the only such location is `/usr/local'. The examples in this manual -will use `/usr/local' as the target directory. - - A "stow directory" is the root of a tree containing separate -packages in private subtrees. When Stow runs, it uses the current -directory as the default stow directory. The examples in this manual -will use `/usr/local/stow' as the stow directory, so that individual -packages will be, for example, `/usr/local/stow/perl' and -`/usr/local/stow/emacs'. - - An "installation image" is the layout of files and directories -required by a package, relative to the target directory. Thus, the -installation image for Perl includes: a `bin' directory containing -`perl' and `a2p' (among others); an `info' directory containing Texinfo -documentation; a `lib/perl' directory containing Perl libraries; and a -`man/man1' directory containing man pages. - - A "package directory" is the root of a tree containing the -installation image for a particular package. Each package directory -must reside in a stow directory -- e.g., the package directory -`/usr/local/stow/perl' must reside in the stow directory -`/usr/local/stow'. The "name" of a package is the name of its -directory within the stow directory -- e.g., `perl'. - - Thus, the Perl executable might reside in -`/usr/local/stow/perl/bin/perl', where `/usr/local' is the target -directory, `/usr/local/stow' is the stow directory, -`/usr/local/stow/perl' is the package directory, and `bin/perl' within -is part of the installation image. - - A "symlink" is a symbolic link. A symlink can be "relative" or -"absolute". An absolute symlink names a full path; that is, one -starting from `/'. A relative symlink names a relative path; that is, -one not starting from `/'. The target of a relative symlink is -computed starting from the symlink's own directory. Stow only creates -relative symlinks. - - -File: stow.info, Node: Invoking Stow, Next: Installing Packages, Prev: Terminology, Up: Top - -3 Invoking Stow -*************** - -The syntax of the `stow' command is: - - stow [OPTIONS] [ACTION FLAG] PACKAGE ... - -Each PACKAGE is the name of a package (e.g., `perl') in the stow -directory that we wish to install into (or delete from) the target -directory. The default action is to install the given packages, -although alternate actions may be specified by preceding the package -name(s) with an ACTION FLAG. Unless otherwise specified, the stow -directory is assumed to be the current directory and the target -directory is assumed to be the parent of the current directory, so it -is typical to execute `stow' from the directory `/usr/local/stow'. - -The following options are supported: - -`-d DIR' -`--dir=DIR' - Set the stow directory to DIR instead of the current directory. - This also has the effect of making the default target directory be - the parent of DIR. - -`-t DIR' -`--target=DIR' - Set the target directory to DIR instead of the parent of the stow - directory. - -`--ignore=''' - This (repeatable) option lets you suppress acting on files that - match the given perl regular expression. For example, using the - options - - --ignore='~' --ignore='\.#.*' - - will cause stow to ignore emacs and CVS backup files. - - Note that the regular expression is anchored to the end of the - filename, because this is what you will want to do most of the - time. - -`--defer=''' - This (repeatable) option lets you defer stowing a file matching - the given regular expression, if that file is already stowed by - another package. For example, the following options - - --defer='man' --defer='info' - - will cause stow to skip over pre-existing man and info pages. - - Equivalently, you could use -defer='man|info' since the argument - is just a Perl regex. - - Note that the regular expression is anchored to the beginning of - the path relative to the target directory, because this is what - you will want to do most of the time. - -`--override=''' - This (repeatable) option forces any file matching the regular - expression to be stowed, even if the file is already stowed to - another package. For example, the following options - - --override='man' --override='info' - - will permit stow to overwrite links that point to pre-existing man - and info pages that are owned by stow and would otherwise cause a - conflict. - - The regular expression is anchored to the beginning of the path - relative to the target directory, because this is what you will - want to do most of the time. - -`-n' -`--no' -`--simulate' - Do not perform any operations that modify the file system; in - combination with `-v' can be used to merely show what would happen. - -`-v' -`--verbose[=N]' - Send verbose output to standard error describing what Stow is - doing. Verbosity levels are 0, 1, 2, and 3; 0 is the default. - Using `-v' or `--verbose' increases the verbosity by one; using - `--verbose=N' sets it to N. - -`-p' -`--compat' - Scan the whole target tree when unstowing. By default, only - directories specified in the "installation image" are scanned - during an unstow operation. Scanning the whole tree can be - prohibitive if your target tree is very large. This option - restores the legacy behaviour; however, the `--badlinks' option - may be a better way of ensuring that your installation does not - have any dangling symlinks. - -`-V' -`--version' - Show Stow version number, and exit. - -`-h' -`--help' - Show Stow command syntax, and exit. - - The following ACTION FLAGS are supported: - -`-D' -`--delete' - Delete (unstow) the package name(s) that follow this option from - the "target directory". This option may be repeated any number of - times. - -`-R' -`--restow' - Restow (first unstow, then stow again) the package names that - follow this option. This is useful for pruning obsolete symlinks - from the target tree after updating the software in a package. - This option may be repeated any number of times. - -`-S' - -`--stow' - explictly stow the package name(s) that follow this option. May - be omitted if you are not using the `-D' or `-R' options in the - same invocation. See *Note Mixing Operations::, for details of - when you might like to use this feature. This option may be - repeated any number of times. - - The following options are useful for cleaning up your target tree: - -`-b' -`--badlinks' - Checks target directory for bogus symbolic links. That is, links - that point to non-existent files. - -`-a' -`--aliens' - Checks for files in the target directory that are not symbolic - links. The target directory should be managed by stow alone, - except for directories that contain a `.stow' file. - -`-l' -`--list' - Will display the target package for every symbolic link in the - stow target directory. The following options are deprecated: - - The following options are deprecated as of Stow Version 2: -`-c' -`--conflicts' - Print any conflicts that are encountered. This option implies - `-n', and is used to search for all conflicts that might arise - from an actual Stow operation. - - This option is deprecated as conflicts are now printed by default - and no operations will be performed if any conflicts are detected. - - *note Resource Files:: for a way to set default values for any of -these options - - -File: stow.info, Node: Installing Packages, Next: Deleting Packages, Prev: Invoking Stow, Up: Top - -4 Installing Packages -********************* - -The default action of Stow is to install a package. This means creating -symlinks in the target tree that point into the package tree. Stow -attempts to do this with as few symlinks as possible; in other words, if -Stow can create a single symlink that points to an entire subtree within -the package tree, it will choose to do that rather than create a -directory in the target tree and populate it with symlinks. - - For example, suppose that no packages have yet been installed in -`/usr/local'; it's completely empty (except for the `stow' -subdirectory, of course). Now suppose the Perl package is installed. -Recall that it includes the following directories in its installation -image: `bin'; `info'; `lib/perl'; `man/man1'. Rather than creating -the directory `/usr/local/bin' and populating it with symlinks to -`../stow/perl/bin/perl' and `../stow/perl/bin/a2p' (and so on), Stow -will create a single symlink, `/usr/local/bin', which points to -`stow/perl/bin'. In this way, it still works to refer to -`/usr/local/bin/perl' and `/usr/local/bin/a2p', and fewer symlinks have -been created. This is called "tree folding", since an entire subtree -is "folded" into a single symlink. - - To complete this example, Stow will also create the symlink -`/usr/local/info' pointing to `stow/perl/info'; the symlink -`/usr/local/lib' pointing to `stow/perl/lib'; and the symlink -`/usr/local/man' pointing to `stow/perl/man'. - - Now suppose that instead of installing the Perl package into an empty -target tree, the target tree is not empty to begin with. Instead, it -contains several files and directories installed under a different -system-administration philosophy. In particular, `/usr/local/bin' -already exists and is a directory, as are `/usr/local/lib' and -`/usr/local/man/man1'. In this case, Stow will descend into -`/usr/local/bin' and create symlinks to `../stow/perl/bin/perl' and -`../stow/perl/bin/a2p' (etc.), and it will descend into -`/usr/local/lib' and create the tree-folding symlink `perl' pointing to -`../stow/perl/lib/perl', and so on. As a rule, Stow only descends as -far as necessary into the target tree when it can create a tree-folding -symlink. - - The time often comes when a tree-folding symlink has to be undone -because another package uses one or more of the folded subdirectories in -its installation image. This operation is called "splitting open" or -"unfolding" a folded tree. It involves removing the original symlink -from the target tree, creating a true directory in its place, and then -populating the new directory with symlinks to the newly-installed -package _and_ to the old package that used the old symlink. For -example, suppose that after installing Perl into an empty `/usr/local', -we wish to install Emacs. Emacs's installation image includes a `bin' -directory containing the `emacs' and `etags' executables, among others. -Stow must make these files appear to be installed in `/usr/local/bin', -but presently `/usr/local/bin' is a symlink to `stow/perl/bin'. Stow -therefore takes the following steps: the symlink `/usr/local/bin' is -deleted; the directory `/usr/local/bin' is created; links are made from -`/usr/local/bin' to `../stow/emacs/bin/emacs' and -`../stow/emacs/bin/etags'; and links are made from `/usr/local/bin' to -`../stow/perl/bin/perl' and `../stow/perl/bin/a2p'. - - When splitting open a folded tree, Stow makes sure that the symlink -it is about to remove points inside a valid package in the current stow -directory. _Stow will never delete anything that it doesn't own_. -Stow "owns" everything living in the target tree that points into a -package in the stow directory. Anything Stow owns, it can recompute if -lost: symlinks that point into a package in the stow directory, or -directories that only contain sysmlinks that stow "owns". Note that -by this definition, Stow doesn't "own" anything _in_ the stow directory -or in any of the packages. - - If Stow needs to create a directory or a symlink in the target tree -and it cannot because that name is already in use and is not owned by -Stow, then a "conflict" has arisen. *Note Conflicts::. - - -File: stow.info, Node: Deleting Packages, Next: Conflicts, Prev: Installing Packages, Up: Top - -5 Deleting Packages -******************* - -When the `-D' option is given, the action of Stow is to delete a -package from the target tree. Note that Stow will not delete anything -it doesn't "own". Deleting a package does _not_ mean removing it from -the stow directory or discarding the package tree. - - To delete a package, Stow recursively scans the target tree, -skipping over any directory that is not included in the installation -image.(1) For example, if the target directory is `/usr/local' and the -installation image for the package being deleted has only a `bin' -directory and a `man' directory at the top level, then we only scan -`/usr/local/bin' and `/usr/local/bin/man', and not `/usr/local/lib' or -`/usr/local/share', or for that matter `/usr/local/stow'. Any symlink -it finds that points into the package being deleted is removed. Any -directory that contained only symlinks to the package being deleted is -removed. Any directory that, after removing symlinks and empty -subdirectories, contains only symlinks to a single other package, is -considered to be a previously "folded" tree that was "split open." Stow -will re-fold the tree by removing the symlinks to the surviving package, -removing the directory, then linking the directory back to the surviving -package. - - ---------- Footnotes ---------- - - (1) This approach was introduced in version 2 of GNU Stow. -Previously, the whole target tree was scanned and stow directories were -explicitly omitted. This became problematic when dealing with very -large installations. The only situation where this is useful is if you -accidentally delete a directory in the package tree, leaving you with a -whole bunch of dangling links. Note that you can enable the old -approach with the `-p' option. Alternatively, you can use the -`--badlinks' option get stow to search for dangling links in your -target tree and remove the offenders manually. - - -File: stow.info, Node: Conflicts, Next: Deferred Operation, Prev: Deleting Packages, Up: Top - -5.1 Conflicts -============= - -If, during installation, a file or symlink exists in the target tree and -has the same name as something Stow needs to create, and if the -existing name is not a folded tree that can be split open, then a -"conflict" has arisen. A conflict also occurs if a directory exists -where Stow needs to place a symlink to a non-directory. On the other -hand, if the existing name is merely a symlink that already points -where Stow needs it to, then no conflict has occurred. (Thus it is -harmless to install a package that has already been installed.) - - A conflict causes Stow to exit immediately and print a warning -(unless `-c' is given), even if that means aborting an installation in -mid-package. - - When running Stow with the `-n' or `-c' options, no actual -filesystem-modifying operations take place. Thus if a folded tree would -have been split open, but instead was left in place because `-n' or -`-c' was used, then Stow will report a "false conflict", since the -directory that Stow was expecting to populate has remained an -un-populatable symlink. - - -File: stow.info, Node: Deferred Operation, Next: Mixing Operations, Prev: Conflicts, Up: Top - -6 Deferred Operation -******************** - -For complex packages, scanning the stow and target trees in tandem, and -deciding whether to make directories or links, split-open or fold -directories, can actually take a long time (a number of seconds). -Moreover, an accurate analysis of potential conflicts, requires us to -take in to account all of these operations. - - Accidentally stowing a package that will result in a conflict - - -File: stow.info, Node: Mixing Operations, Next: Multiple Stow Directories, Prev: Deferred Operation, Up: Top - -7 Mixing Operations -******************* - -Since Version 2.0, multiple distinct actions can be specified in a -single invocation of GNU Stow. For example, to update an installation -of Emacs from version 21.3 to 21.4a you can now do the following: - - stow -D emacs-21.3 -S emacs-21.4a - -which will replace emacs-21.3 with emacs-21.4a using a single -invocation. - - This is much faster and cleaner than performing two separate -invocations of stow, because redundant folding/unfolding operations can -be factored out. In addition, all the operations are calculated and -merged before being executed *note Deferred Operation::, so the amount -of of time in which GNU Emacs is unavailable is minimised. - - You can mix and match any number of actions, for example, - - stow -S pkg1 pkg2 -D pkg3 pkg4 -S pkg5 -R pkg6 - -will unstow pkg3, pkg4 and pkg6, then stow pkg1, pkg2, pkg5 and pkg6. - - -File: stow.info, Node: Multiple Stow Directories, Next: Target Maintenance, Prev: Mixing Operations, Up: Top - -8 Multiple Stow Directories -*************************** - -If there are two or more system administrators who wish to maintain -software separately, or if there is any other reason to want two or more -stow directories, it can be done by creating a file named `.stow' in -each stow directory. The presence of `/usr/local/foo/.stow' informs -Stow that, though `foo' is not the current stow directory, and though -it is a subdirectory of the target directory, nevertheless it is _a_ -stow directory and as such Stow doesn't "own" anything in it (*note -Installing Packages::). This will protect the contents of `foo' from a -`stow -D', for instance. - - XXX is this still true? XXX - - When multiple stow directories share a target tree, the effectiveness -of Stow is reduced. If a tree-folding symlink is encountered and needs -to be split open during an installation, but the symlink points into -the wrong stow directory, Stow will report a conflict rather than split -open the tree (because it doesn't consider itself to own the symlink, -and thus cannot remove it). - - -File: stow.info, Node: Target Maintenance, Next: Resource Files, Prev: Multiple Stow Directories, Up: Top - -9 Target Maintenance -******************** - -From time to time you will need to clean up your target tree. Stow -includes three operational modes that performs checks that would -generally be too expensive to performed during normal stow execution. - - I've added a -l option to chkstow which will give you a listing of -every package name that has already been stowed should be able to diff -this with your directory listing - - bash cd build/scripts diff <(../bin/chkstow -l) <(ls -1) - - -File: stow.info, Node: Resource Files, Next: Compile-time vs Install-time, Prev: Target Maintenance, Up: Top - -10 Resource Files -***************** - -Default command line options may be set in `.stowrc' (current -directory) or `~/.stowrc' (home directory). These are parsed in that -order, and effectively prepended to you command line. This feature can -be used for some interesting effects. - - For example, suppose your site uses more than one stow directory, -perhaps in order to share around responsibilities with a number of -systems administrators. One of the administrators might have the -following in there `~/.stowrc' file: - - --dir=/usr/local/stow2 - --target=/usr/local - --ignore='~' - --ignore='^CVS' - - so that the `stow' command will default to operating on the -`/usr/local/stow2' directory, with `/usr/local' as the target, and -ignoring vi backup files and CVS directories. - - If you had a stow directory `/usr/local/stow/perl-extras' that was -only used for Perl modules, then you might place the following in -`/usr/local/stow/perl-extras/.stowrc': - - --dir=/usr/local/stow/perl-extras - --target=/usr/local - --override=bin - --override=man - --ignore='perllocal\.pod' - --ignore='\.packlist' - --ignore='\.bs' - - so that the when your are in the `/usr/local/stow/perl-extras' -directory, `stow' will regard any subdirectories as stow packages, with -`/usr/local' as the target (rather than the immediate parent directoy -`/usr/local/stow'), overriding any pre-existing links to bin files or -man pages, and ignoring some cruft that gets installed by default. - - -File: stow.info, Node: Compile-time vs Install-time, Next: Bootstrapping, Prev: Resource Files, Up: Top - -11 Compile-time vs Install-time -******************************* - -Software whose installation is managed with Stow needs to be installed -in one place (the package directory, e.g. `/usr/local/stow/perl') but -needs to appear to run in another place (the target tree, e.g., -`/usr/local'). Why is this important? What's wrong with Perl, for -instance, looking for its files in `/usr/local/stow/perl' instead of in -`/usr/local'? - - The answer is that there may be another package, e.g., -`/usr/local/stow/perl-extras', stowed under `/usr/local'. If Perl is -configured to find its files in `/usr/local/stow/perl', it will never -find the extra files in the `perl-extras' package, even though they're -intended to be found by Perl. On the other hand, if Perl looks for its -files in `/usr/local', then it will find the intermingled Perl and -`perl-extras' files. - - This means that when you compile a package, you must tell it the -location of the run-time, or target tree; but when you install it, you -must place it in the stow tree. - - Some software packages allow you to specify, at compile-time, -separate locations for installation and for run-time. Perl is one such -package; *Note Perl and Perl 5 Modules::. Others allow you to compile -the package, then give a different destination in the `make install' -step without causing the binaries or other files to get rebuilt. Most -GNU software falls into this category; Emacs is a notable exception. -See *note GNU Emacs::, and *note Other FSF Software::. - - Still other software packages cannot abide the idea of separate -installation and run-time locations at all. If you try to `make -install prefix=/usr/local/stow/FOO', then first the whole package will -be recompiled to hardwire the `/usr/local/stow/FOO' path. With these -packages, it is best to compile normally, then run `make -n install', -which should report all the steps needed to install the just-built -software. Place this output into a file, edit the commands in the file -to remove recompilation steps and to reflect the Stow-based -installation location, and execute the edited file as a shell script in -place of `make install'. Be sure to execute the script using the same -shell that `make install' would have used. - - (If you use GNU Make and a shell [such as GNU bash] that understands -`pushd' and `popd', you can do the following: - - 1. Replace all lines matching `make[N]: Entering directory `DIR'' - with `pushd DIR'. - - 2. Replace all lines matching `make[N]: Leaving directory `DIR'' with - `popd'. - - 3. Delete all lines matching `make[N]: Nothing to be done for RULE'. - - Then find other lines in the output containing `cd' or `make' -commands and rewrite or delete them. In particular, you should be able -to delete sections of the script that resemble this: - - for i in DIR_1 DIR_2 ...; do \ - (cd $i; make ARGS ...) \ - done - -Note, that's "should be able to," not "can." Be sure to modulate these -guidelines with plenty of your own intelligence. - - The details of stowing some specific packages are described in the -following sections. - -* Menu: - -* GNU Emacs:: -* Other FSF Software:: -* Cygnus Software:: -* Perl and Perl 5 Modules:: - - -File: stow.info, Node: GNU Emacs, Next: Other FSF Software, Prev: Compile-time vs Install-time, Up: Compile-time vs Install-time - -11.1 GNU Emacs -============== - -Although the Free Software Foundation has many enlightened practices -regarding Makefiles and software installation (see *note Other FSF -Software::), Emacs, its flagship program, doesn't quite follow the -rules. In particular, most GNU software allows you to write: - - make - make install prefix=/usr/local/stow/PACKAGE - -If you try this with Emacs, then the new value for `prefix' in the -`make install' step will cause some files to get recompiled with the -new value of `prefix' wired into them. In Emacs 19.23 and later,(1) -the way to work around this problem is: - - make - make install-arch-dep install-arch-indep prefix=/usr/local/stow/emacs - - In 19.22 and some prior versions of Emacs, the workaround was: - - make - make do-install prefix=/usr/local/stow/emacs - - ---------- Footnotes ---------- - - (1) As I write this, the current version of Emacs is 19.31. - - -File: stow.info, Node: Other FSF Software, Next: Cygnus Software, Prev: GNU Emacs, Up: Compile-time vs Install-time - -11.2 Other FSF Software -======================= - -The Free Software Foundation, the organization behind the GNU project, -has been unifying the build procedure for its tools for some time. -Thanks to its tools `autoconf' and `automake', most packages now -respond well to these simple steps, with no other intervention -necessary: - - ./configure OPTIONS - make - make install prefix=/usr/local/stow/PACKAGE - - Hopefully, these tools can evolve to be aware of Stow-managed -packages, such that providing an option to `configure' can allow `make' -and `make install' steps to work correctly without needing to "fool" -the build process. - - -File: stow.info, Node: Cygnus Software, Next: Perl and Perl 5 Modules, Prev: Other FSF Software, Up: Compile-time vs Install-time - -11.3 Cygnus Software -==================== - -Cygnus is a commercial supplier and supporter of GNU software. It has -also written several of its own packages, released under the terms of -the GNU General Public License; and it has taken over the maintenance of -other packages. Among the packages released by Cygnus are `gdb', -`gnats', and `dejagnu'. - - Cygnus packages have the peculiarity that each one unpacks into a -directory tree with a generic top-level Makefile, which is set up to -compile _all_ of Cygnus' packages, any number of which may reside under -the top-level directory. In other words, even if you're only building -`gnats', the top-level Makefile will look for, and try to build, `gdb' -and `dejagnu' subdirectories, among many others. - - The result is that if you try `make -n install -prefix=/usr/local/stow/PACKAGE' at the top level of a Cygnus package, -you'll get a bewildering amount of output. It will then be very -difficult to visually scan the output to see whether the install will -proceed correctly. Unfortunately, it's not always clear how to invoke -an install from the subdirectory of interest. - - In cases like this, the best approach is to run your `make install -prefix=...', but be ready to interrupt it if you detect that it is -recompiling files. Usually it will work just fine; otherwise, install -manually. - - -File: stow.info, Node: Perl and Perl 5 Modules, Prev: Cygnus Software, Up: Compile-time vs Install-time - -11.4 Perl and Perl 5 Modules -============================ - -Perl 4.036 allows you to specify different locations for installation -and for run-time. It is the only widely-used package in this author's -experience that allows this, though hopefully more packages will adopt -this model. - - Unfortunately, the authors of Perl believed that only AFS sites need -this ability. The configuration instructions for Perl 4 misleadingly -state that some occult means are used under AFS to transport files from -their installation tree to their run-time tree. In fact, that confusion -arises from the fact that Depot, Stow's predecessor, originated at -Carnegie Mellon University, which was also the birthplace of AFS. CMU's -need to separate install-time and run-time trees stemmed from its use of -Depot, not from AFS. - - The result of this confusion is that Perl 5's configuration script -doesn't even offer the option of separating install-time and run-time -trees _unless_ you're running AFS. Fortunately, after you've entered -all the configuration settings, Perl's setup script gives you the -opportunity to edit those settings in a file called `config.sh'. When -prompted, you should edit this file and replace occurrences of - - inst.../usr/local... - -with - - inst.../usr/local/stow/perl... - -You can do this with the following Unix command: - - sed 's,^\(inst.*/usr/local\),\1/stow/perl,' config.sh > config.sh.new - mv config.sh.new config.sh - - Hopefully, the Perl authors will correct this deficiency in Perl 5's -configuration mechanism. - - Perl 5 modules--i.e., extensions to Perl 5--generally conform to a -set of standards for building and installing them. The standard says -that the package comes with a top-level `Makefile.PL', which is a Perl -script. When it runs, it generates a `Makefile'. - - If you followed the instructions above for editing `config.sh' when -Perl was built, then when you create a `Makefile' from a `Makefile.PL', -it will contain separate locations for run-time (`/usr/local') and -install-time (`/usr/local/stow/perl'). Thus you can do - - perl Makefile.PL - make - make install - -and the files will be installed into `/usr/local/stow/perl'. However, -you might prefer each Perl module to be stowed separately. In that -case, you must edit the resulting Makefile, replacing -`/usr/local/stow/perl' with `/usr/local/stow/MODULE'. The best way to -do this is: - - perl Makefile.PL - find . -name Makefile -print | \ - xargs perl -pi~ -e 's,^(INST.*/stow)/perl,$1/MODULE,;' - make - make install - -(The use of `find' and `xargs' ensures that all Makefiles in the -module's source tree, even those in subdirectories, get edited.) A -good convention to follow is to name the stow directory for a Perl -MODULE `cpan.MODULE', where `cpan' stands for Comprehensive Perl -Archive Network, a collection of FTP sites that is the source of most -Perl 5 extensions. This way, it's easy to tell at a glance which of -the subdirectories of `/usr/local/stow' are Perl 5 extensions. - - When you stow separate Perl 5 modules separately, you are likely to -encounter conflicts (*note Conflicts::) with files named `.exists' and -`perllocal.pod'. One way to work around this is to remove those files -before stowing the module. If you use the `cpan.MODULE' naming -convention, you can simply do this: - - cd /usr/local/stow - find cpan.* \( -name .exists -o -name perllocal.pod \) -print | \ - xargs rm - - -File: stow.info, Node: Bootstrapping, Next: Reporting Bugs, Prev: Compile-time vs Install-time, Up: Top - -12 Bootstrapping -**************** - -Suppose you have a stow directory all set up and ready to go: -`/usr/local/stow/perl' contains the Perl installation, -`/usr/local/stow/stow' contains Stow itself, and perhaps you have other -packages waiting to be stowed. You'd like to be able to do this: - - cd /usr/local/stow - stow -vv * - -but `stow' is not yet in your `PATH'. Nor can you do this: - - cd /usr/local/stow - stow/bin/stow -vv * - -because the `#!' line at the beginning of `stow' tries to locate Perl -(usually in `/usr/local/bin/perl'), and that won't be found. The -solution you must use is: - - cd /usr/local/stow - perl/bin/perl stow/bin/stow -vv * - - -File: stow.info, Node: Reporting Bugs, Next: Known Bugs, Prev: Bootstrapping, Up: Top - -13 Reporting Bugs -***************** - -Please send bug reports to the current maintaner, Kal Hodgson, by -electronic mail. The address to use is `'. Please -include: - - * the version number of Stow (`stow --version'); - - * the version number of Perl (`perl -v'); - - * the system information, which can often be obtained with `uname - -a'; - - * a description of the bug; - - * the precise command you gave; - - * the output from the command (preferably verbose output, obtained by - adding `--verbose=3' to the Stow command line). - - If you are really keen, consider developing a minimal test case and -creating a new test. See the `t/' for lots of examples. - - Before reporting a bug, please read the manual carefully, especially -*note Known Bugs::, to see whether you're encountering something that -doesn't need reporting. (*note Conflicts::). - - -File: stow.info, Node: Known Bugs, Next: GNU General Public License, Prev: Reporting Bugs, Up: Top - -14 Known Bugs -************* - - * When using multiple stow directories (*note Multiple Stow - Directories::), Stow fails to "split open" tree-folding symlinks - (*note Installing Packages::) that point into a stow directory - which is not the one in use by the current Stow command. Before - failing, it should search the target of the link to see whether - any element of the path contains a `.stow' file. If it finds one, - it can "learn" about the cooperating stow directory to - short-circuit the `.stow' search the next time it encounters a - tree-folding symlink. - - -File: stow.info, Node: GNU General Public License, Next: Index, Prev: Known Bugs, Up: Top - -GNU General Public License -************************** - - Version 2, June 1991 - - Copyright (C) 1989, 1991 Free Software Foundation, Inc. - 675 Mass Ave, Cambridge, MA 02139, USA - - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. - -Preamble -======== - -The licenses for most software are designed to take away your freedom -to share and change it. By contrast, the GNU General Public License is -intended to guarantee your freedom to share and change free -software--to make sure the software is free for all its users. This -General Public License applies to most of the Free Software -Foundation's software and to any other program whose authors commit to -using it. (Some other Free Software Foundation software is covered by -the GNU Library General Public License instead.) You can apply it to -your programs, too. - - When we speak of free software, we are referring to freedom, not -price. Our General Public Licenses are designed to make sure that you -have the freedom to distribute copies of free software (and charge for -this service if you wish), that you receive source code or can get it -if you want it, that you can change the software or use pieces of it in -new free programs; and that you know you can do these things. - - To protect your rights, we need to make restrictions that forbid -anyone to deny you these rights or to ask you to surrender the rights. -These restrictions translate to certain responsibilities for you if you -distribute copies of the software, or if you modify it. - - For example, if you distribute copies of such a program, whether -gratis or for a fee, you must give the recipients all the rights that -you have. You must make sure that they, too, receive or can get the -source code. And you must show them these terms so they know their -rights. - - We protect your rights with two steps: (1) copyright the software, -and (2) offer you this license which gives you legal permission to copy, -distribute and/or modify the software. - - Also, for each author's protection and ours, we want to make certain -that everyone understands that there is no warranty for this free -software. If the software is modified by someone else and passed on, we -want its recipients to know that what they have is not the original, so -that any problems introduced by others will not reflect on the original -authors' reputations. - - Finally, any free program is threatened constantly by software -patents. We wish to avoid the danger that redistributors of a free -program will individually obtain patent licenses, in effect making the -program proprietary. To prevent this, we have made it clear that any -patent must be licensed for everyone's free use or not licensed at all. - - The precise terms and conditions for copying, distribution and -modification follow. - - TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION - 0. This License applies to any program or other work which contains a - notice placed by the copyright holder saying it may be distributed - under the terms of this General Public License. The "Program", - below, refers to any such program or work, and a "work based on - the Program" means either the Program or any derivative work under - copyright law: that is to say, a work containing the Program or a - portion of it, either verbatim or with modifications and/or - translated into another language. (Hereinafter, translation is - included without limitation in the term "modification".) Each - licensee is addressed as "you". - - Activities other than copying, distribution and modification are - not covered by this License; they are outside its scope. The act - of running the Program is not restricted, and the output from the - Program is covered only if its contents constitute a work based on - the Program (independent of having been made by running the - Program). Whether that is true depends on what the Program does. - - 1. You may copy and distribute verbatim copies of the Program's - source code as you receive it, in any medium, provided that you - conspicuously and appropriately publish on each copy an appropriate - copyright notice and disclaimer of warranty; keep intact all the - notices that refer to this License and to the absence of any - warranty; and give any other recipients of the Program a copy of - this License along with the Program. - - You may charge a fee for the physical act of transferring a copy, - and you may at your option offer warranty protection in exchange - for a fee. - - 2. You may modify your copy or copies of the Program or any portion - of it, thus forming a work based on the Program, and copy and - distribute such modifications or work under the terms of Section 1 - above, provided that you also meet all of these conditions: - - a. You must cause the modified files to carry prominent notices - stating that you changed the files and the date of any change. - - b. You must cause any work that you distribute or publish, that - in whole or in part contains or is derived from the Program - or any part thereof, to be licensed as a whole at no charge - to all third parties under the terms of this License. - - c. If the modified program normally reads commands interactively - when run, you must cause it, when started running for such - interactive use in the most ordinary way, to print or display - an announcement including an appropriate copyright notice and - a notice that there is no warranty (or else, saying that you - provide a warranty) and that users may redistribute the - program under these conditions, and telling the user how to - view a copy of this License. (Exception: if the Program - itself is interactive but does not normally print such an - announcement, your work based on the Program is not required - to print an announcement.) - - These requirements apply to the modified work as a whole. If - identifiable sections of that work are not derived from the - Program, and can be reasonably considered independent and separate - works in themselves, then this License, and its terms, do not - apply to those sections when you distribute them as separate - works. But when you distribute the same sections as part of a - whole which is a work based on the Program, the distribution of - the whole must be on the terms of this License, whose permissions - for other licensees extend to the entire whole, and thus to each - and every part regardless of who wrote it. - - Thus, it is not the intent of this section to claim rights or - contest your rights to work written entirely by you; rather, the - intent is to exercise the right to control the distribution of - derivative or collective works based on the Program. - - In addition, mere aggregation of another work not based on the - Program with the Program (or with a work based on the Program) on - a volume of a storage or distribution medium does not bring the - other work under the scope of this License. - - 3. You may copy and distribute the Program (or a work based on it, - under Section 2) in object code or executable form under the terms - of Sections 1 and 2 above provided that you also do one of the - following: - - a. Accompany it with the complete corresponding machine-readable - source code, which must be distributed under the terms of - Sections 1 and 2 above on a medium customarily used for - software interchange; or, - - b. Accompany it with a written offer, valid for at least three - years, to give any third party, for a charge no more than your - cost of physically performing source distribution, a complete - machine-readable copy of the corresponding source code, to be - distributed under the terms of Sections 1 and 2 above on a - medium customarily used for software interchange; or, - - c. Accompany it with the information you received as to the offer - to distribute corresponding source code. (This alternative is - allowed only for noncommercial distribution and only if you - received the program in object code or executable form with - such an offer, in accord with Subsection b above.) - - The source code for a work means the preferred form of the work for - making modifications to it. For an executable work, complete - source code means all the source code for all modules it contains, - plus any associated interface definition files, plus the scripts - used to control compilation and installation of the executable. - However, as a special exception, the source code distributed need - not include anything that is normally distributed (in either - source or binary form) with the major components (compiler, - kernel, and so on) of the operating system on which the executable - runs, unless that component itself accompanies the executable. - - If distribution of executable or object code is made by offering - access to copy from a designated place, then offering equivalent - access to copy the source code from the same place counts as - distribution of the source code, even though third parties are not - compelled to copy the source along with the object code. - - 4. You may not copy, modify, sublicense, or distribute the Program - except as expressly provided under this License. Any attempt - otherwise to copy, modify, sublicense or distribute the Program is - void, and will automatically terminate your rights under this - License. However, parties who have received copies, or rights, - from you under this License will not have their licenses - terminated so long as such parties remain in full compliance. - - 5. You are not required to accept this License, since you have not - signed it. However, nothing else grants you permission to modify - or distribute the Program or its derivative works. These actions - are prohibited by law if you do not accept this License. - Therefore, by modifying or distributing the Program (or any work - based on the Program), you indicate your acceptance of this - License to do so, and all its terms and conditions for copying, - distributing or modifying the Program or works based on it. - - 6. Each time you redistribute the Program (or any work based on the - Program), the recipient automatically receives a license from the - original licensor to copy, distribute or modify the Program - subject to these terms and conditions. You may not impose any - further restrictions on the recipients' exercise of the rights - granted herein. You are not responsible for enforcing compliance - by third parties to this License. - - 7. If, as a consequence of a court judgment or allegation of patent - infringement or for any other reason (not limited to patent - issues), conditions are imposed on you (whether by court order, - agreement or otherwise) that contradict the conditions of this - License, they do not excuse you from the conditions of this - License. If you cannot distribute so as to satisfy simultaneously - your obligations under this License and any other pertinent - obligations, then as a consequence you may not distribute the - Program at all. For example, if a patent license would not permit - royalty-free redistribution of the Program by all those who - receive copies directly or indirectly through you, then the only - way you could satisfy both it and this License would be to refrain - entirely from distribution of the Program. - - If any portion of this section is held invalid or unenforceable - under any particular circumstance, the balance of the section is - intended to apply and the section as a whole is intended to apply - in other circumstances. - - It is not the purpose of this section to induce you to infringe any - patents or other property right claims or to contest validity of - any such claims; this section has the sole purpose of protecting - the integrity of the free software distribution system, which is - implemented by public license practices. Many people have made - generous contributions to the wide range of software distributed - through that system in reliance on consistent application of that - system; it is up to the author/donor to decide if he or she is - willing to distribute software through any other system and a - licensee cannot impose that choice. - - This section is intended to make thoroughly clear what is believed - to be a consequence of the rest of this License. - - 8. If the distribution and/or use of the Program is restricted in - certain countries either by patents or by copyrighted interfaces, - the original copyright holder who places the Program under this - License may add an explicit geographical distribution limitation - excluding those countries, so that distribution is permitted only - in or among countries not thus excluded. In such case, this - License incorporates the limitation as if written in the body of - this License. - - 9. The Free Software Foundation may publish revised and/or new - versions of the General Public License from time to time. Such - new versions will be similar in spirit to the present version, but - may differ in detail to address new problems or concerns. - - Each version is given a distinguishing version number. If the - Program specifies a version number of this License which applies - to it and "any later version", you have the option of following - the terms and conditions either of that version or of any later - version published by the Free Software Foundation. If the Program - does not specify a version number of this License, you may choose - any version ever published by the Free Software Foundation. - - 10. If you wish to incorporate parts of the Program into other free - programs whose distribution conditions are different, write to the - author to ask for permission. For software which is copyrighted - by the Free Software Foundation, write to the Free Software - Foundation; we sometimes make exceptions for this. Our decision - will be guided by the two goals of preserving the free status of - all derivatives of our free software and of promoting the sharing - and reuse of software generally. - - NO WARRANTY - 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO - WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE - LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT - HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT - WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT - NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND - FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE - QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE - PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY - SERVICING, REPAIR OR CORRECTION. - - 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN - WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY - MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE - LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, - INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR - INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF - DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU - OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY - OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN - ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. - - END OF TERMS AND CONDITIONS -How to Apply These Terms to Your New Programs -============================================= - -If you develop a new program, and you want it to be of the greatest -possible use to the public, the best way to achieve this is to make it -free software which everyone can redistribute and change under these -terms. - - To do so, attach the following notices to the program. It is safest -to attach them to the start of each source file to most effectively -convey the exclusion of warranty; and each file should have at least -the "copyright" line and a pointer to where the full notice is found. - - ONE LINE TO GIVE THE PROGRAM'S NAME AND AN IDEA OF WHAT IT DOES. - Copyright (C) 19YY NAME OF AUTHOR - - This program is free software; you can redistribute it and/or - modify it under the terms of the GNU General Public License - as published by the Free Software Foundation; either version 2 - of the License, or (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - - Also add information on how to contact you by electronic and paper -mail. - - If the program is interactive, make it output a short notice like -this when it starts in an interactive mode: - - Gnomovision version 69, Copyright (C) 19YY NAME OF AUTHOR - Gnomovision comes with ABSOLUTELY NO WARRANTY; for details - type `show w'. This is free software, and you are welcome - to redistribute it under certain conditions; type `show c' - for details. - - The hypothetical commands `show w' and `show c' should show the -appropriate parts of the General Public License. Of course, the -commands you use may be called something other than `show w' and `show -c'; they could even be mouse-clicks or menu items--whatever suits your -program. - - You should also get your employer (if you work as a programmer) or -your school, if any, to sign a "copyright disclaimer" for the program, -if necessary. Here is a sample; alter the names: - - Yoyodyne, Inc., hereby disclaims all copyright - interest in the program `Gnomovision' - (which makes passes at compilers) written - by James Hacker. - - SIGNATURE OF TY COON, 1 April 1989 - Ty Coon, President of Vice - - This General Public License does not permit incorporating your -program into proprietary programs. If your program is a subroutine -library, you may consider it more useful to permit linking proprietary -applications with the library. If this is what you want to do, use the -GNU Library General Public License instead of this License. - - -File: stow.info, Node: Index, Prev: GNU General Public License, Up: Top - -Index -***** - -[index] -* Menu: - -* absolute symlink: Terminology. (line 43) -* conflict: Installing Packages. (line 72) -* deletion: Deleting Packages. (line 6) -* directory folding: Installing Packages. (line 13) -* false conflict: Conflicts. (line 19) -* folding trees: Installing Packages. (line 13) -* installation: Installing Packages. (line 6) -* installation image: Terminology. (line 23) -* ownership: Installing Packages. (line 62) -* package: Terminology. (line 6) -* package directory: Terminology. (line 30) -* package name: Terminology. (line 30) -* relative symlink: Terminology. (line 43) -* splitting open folded trees: Installing Packages. (line 44) -* stow directory: Terminology. (line 16) -* symlink: Terminology. (line 43) -* target directory: Terminology. (line 11) -* tree folding: Installing Packages. (line 13) -* unfolding trees: Installing Packages. (line 44) - - - -Tag Table: -Node: Top1313 -Node: Introduction2684 -Ref: Introduction-Footnote-14845 -Node: Terminology4887 -Node: Invoking Stow7250 -Node: Installing Packages12809 -Node: Deleting Packages17066 -Ref: Deleting Packages-Footnote-118486 -Node: Conflicts19074 -Node: Deferred Operation20253 -Node: Mixing Operations20781 -Node: Multiple Stow Directories21780 -Node: Target Maintenance22954 -Node: Resource Files23550 -Node: Compile-time vs Install-time25160 -Node: GNU Emacs28447 -Ref: GNU Emacs-Footnote-129436 -Node: Other FSF Software29500 -Node: Cygnus Software30261 -Node: Perl and Perl 5 Modules31740 -Node: Bootstrapping35295 -Node: Reporting Bugs36076 -Node: Known Bugs37044 -Node: GNU General Public License37747 -Node: Index56887 - -End Tag Table diff --git a/version.texi b/version.texi deleted file mode 100644 index 3245b32..0000000 --- a/version.texi +++ /dev/null @@ -1,4 +0,0 @@ -@set UPDATED 20 February 2008 -@set UPDATED-MONTH February 2008 -@set EDITION 2.0.2 -@set VERSION 2.0.2