Adding upstream version 2:8.1.0875.upstream/2%8.1.0875upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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+INSTALL - Installation of Vim on different machines.
+
+This file contains instructions for compiling Vim. If you already have an
+executable version of Vim, you don't need this.
+
+Contents:
+1. Generic
+2. Unix
+3. OS/2 (with EMX 0.9b)
+4. Atari MiNT
+
+See INSTALLami.txt              for Amiga
+See INSTALLmac.txt              for Macintosh
+See INSTALLpc.txt               for PC (Windows XP/Vista/7/8/10)
+See INSTALLvms.txt              for VMS
+See INSTALLx.txt		for cross-compiling on Unix
+See ../READMEdir/README_390.txt for z/OS and OS/390 Unix
+See ../runtime/doc/os_beos.txt  for BeBox
+
+
+1. Generic
+==========
+
+If you compile Vim without specifying anything, you will get the default
+behaviour as is documented, which should be fine for most people.
+
+For features that you can't enable/disable in another way, you can edit the
+file "feature.h" to match your preferences.
+
+
+2. Unix
+=======
+
+Summary:
+1. make			run configure, compile and link
+2. make install		installation in /usr/local
+
+This will include the GUI and X11 libraries, if you have them.  If you want a
+version of Vim that is small and starts up quickly, see the Makefile for how
+to disable the GUI and X11.  If you don't have GUI libraries and/or X11, these
+features will be disabled automatically.
+
+See the start of Makefile for more detailed instructions about how to compile
+Vim.
+
+If you need extra compiler and/or linker arguments, set $CFLAGS and/or $LIBS
+before starting configure.  Example:
+
+	env  CFLAGS=-I/usr/local/include  LIBS=-lm  make
+
+This is only needed for things that configure doesn't offer a specific argument
+for or figures out by itself.  First try running configure without extra
+arguments.
+
+GNU Autoconf and a few other tools have been used to make Vim work on many
+different Unix systems.  The advantage of this is that Vim should compile
+on most systems without any adjustments.  The disadvantage is that when
+adjustments are required, it takes some time to understand what is happening.
+
+If configure finds all library files and then complains when linking that some
+of them can't be found, your linker doesn't return an error code for missing
+libraries.  Vim should be linked fine anyway, mostly you can just ignore these
+errors.
+
+If you run configure by hand (not using the Makefile), remember that any
+changes in the Makefile have no influence on configure.  This may be what you
+want, but maybe not!
+
+The advantage of running configure separately, is that you can write a script
+to build Vim, without changing the Makefile or feature.h.  Example (using sh):
+
+	CFLAGS=-DCOMPILER_FLAG ./configure --enable-gui=motif
+
+One thing to watch out for: If the configure script itself changes, running
+"make" will execute it again, but without your arguments.  Do "make clean" and
+run configure again.
+
+If you are compiling Vim for several machines, for each machine:
+  a.    make shadow
+  b.    mv shadow machine_name
+  c.    cd machine_name
+  d.    make; make install
+
+[Don't use a path for machine_name, just a directory name, otherwise the links
+that "make shadow" creates won't work.]
+
+
+Unix: COMPILING WITH/WITHOUT GUI
+
+NOTE: This is incomplete, look in Makefile for more info.
+
+These configure arguments can be used to select which GUI to use:
+--enable-gui=gtk      or: gtk2, motif, athena or auto
+--disable-gtk-check
+--disable-motif-check
+--disable-athena-check
+
+--enable-gui defaults to "auto", so it will automatically look for a GUI (in
+the order of GTK, Motif, then Athena).  If one is found, then is uses it and
+does not proceed to check any of the remaining ones.  Otherwise, it moves on
+to the next one.
+
+--enable-{gtk,gtk2,kde,motif,athena}-check all default to "yes", such that if
+--enable-gui is "auto" (which it is by default), GTK, Motif, and Athena will
+be checked for.  If you want to *exclude* a certain check, then you use
+--disable-{gtk,gtk2,kde,motif,athena}-check.
+
+For example, if --enable-gui is set to "auto", but you don't want it look for
+Motif, you then also specify --disable-motif-check.  This results in only
+checking for GTK and Athena.
+
+Lastly, if you know which one you want to use, then you can just do
+--enable-gui={gtk,gtk2,kde,motif,athena}.  So if you wanted to only use Motif,
+then you'd specify --enable-gui=motif.  Once you specify what you want, the
+--enable-{gtk,gtk2,kde,motif,athena}-check options are ignored.
+
+On Linux you usually need GUI "-devel" packages.  You may already have GTK
+libraries installed, but that doesn't mean you can compile Vim with GTK, you
+also need the header files.
+
+For compiling with the GTK+ GUI, you need a recent version of glib and gtk+.
+Configure checks for at least version 1.1.16.  An older version is not selected
+automatically.  If you want to use it anyway, run configure with
+"--disable-gtktest".
+GTK requires an ANSI C compiler.  If you fail to compile Vim with GTK+ (it
+is the preferred choice), try selecting another one in the Makefile.
+If you are sure you have GTK installed, but for some reason configure says you
+do not, you may have left-over header files and/or library files from an older
+(and incompatible) version of GTK.  if this is the case, please check
+auto/config.log for any error messages that may give you a hint as to what's
+happening.
+
+There used to be a KDE version of Vim, using Qt libraries, but since it didn't
+work very well and there was no maintainer it was dropped.
+
+
+Unix: COMPILING WITH MULTI-BYTE
+
+When you want to compile with the multi-byte features enabled, make sure you
+compile on a machine where the locale settings actually work, otherwise the
+configure tests may fail.  You need to compile with "big" features:
+
+    ./configure --with-features=big
+
+Unix: COMPILING ON LINUX
+
+On Linux, when using -g to compile (which is default for gcc), the executable
+will probably be statically linked.  If you don't want this, remove the -g
+option from CFLAGS.
+
+Unix: PUTTING vimrc IN /etc
+
+Some Linux distributions prefer to put the global vimrc file in /etc, and the
+Vim runtime files in /usr.  This can be done with:
+	./configure --prefix=/usr
+	make VIMRCLOC=/etc VIMRUNTIMEDIR=/usr/share/vim MAKE="make -e"
+
+Unix: COMPILING ON NeXT
+
+Add the "-posix" argument to the compiler by using one of these commands:
+	setenv CC 'cc -posix' (csh)
+	export CC='cc -posix' (sh)
+And run configure with "--disable-motif-check".
+
+Unix: LOCAL HEADERS AND LIBRARIES NOT IN /usr/local
+
+Sometimes it is necessary to search different path than /usr/local for locally
+installed headers (/usr/local/include) and libraries (/usr/local/lib).
+To search /stranger/include and /stranger/lib for locally installed
+headers and libraries, use:
+	./configure --with-local-dir=/stranger
+And to not search for locally installed headers and libraries at all, use:
+	./configure --without-local-dir
+
+
+3. OS/2
+=======
+
+OS/2 support was removed in patch 7.4.1008
+
+
+4. Atari MiNT
+=============
+
+[NOTE: this is quite old, it might not work anymore]
+
+To compile Vim for MiNT you may either copy Make_mint.mak to Makefile or use
+the Unix Makefile adapted for the MiNT configuration.
+
+Now proceed as described in the Unix section.
+
+Prerequisites:
+
+You need a curses or termcap library that supports non-alphanumeric
+termcap names. If you don't have any, link with termlib.o.
+
+-----------------------------------------------------------------------------
+
+The rest of this file is based on the INSTALL file that comes with GNU
+autoconf 2.12. Not everything applies to Vim. Read Makefile too!
+
+
+Basic Installation
+==================
+
+   These are generic installation instructions.
+
+   The `configure' shell script attempts to guess correct values for
+various system-dependent variables used during compilation.  It uses
+those values to create a `Makefile' in each directory of the package.
+It may also create one or more `.h' files containing system-dependent
+definitions.  Finally, it creates a shell script `config.status' that
+you can run in the future to recreate the current configuration, a file
+`config.cache' that saves the results of its tests to speed up
+reconfiguring, and a file `config.log' containing compiler output
+(useful mainly for debugging `configure').
+
+   If you need to do unusual things to compile the package, please try
+to figure out how `configure' could check whether to do them, and mail
+diffs or instructions to the address given in the `README' so they can
+be considered for the next release.  If at some point `config.cache'
+contains results you don't want to keep, you may remove or edit it.
+
+   The file `configure.ac' is used to create `configure' by a program
+called `autoconf'.  You only need `configure.ac' if you want to change
+it or regenerate `configure' using a newer version of `autoconf'.
+
+The simplest way to compile this package is:
+
+  1. `cd' to the directory containing the package's source code and type
+     `./configure' to configure the package for your system.  If you're
+     using `csh' on an old version of System V, you might need to type
+     `sh ./configure' instead to prevent `csh' from trying to execute
+     `configure' itself.
+
+     Running `configure' takes awhile.  While running, it prints some
+     messages telling which features it is checking for.
+
+  2. Type `make' to compile the package.
+
+  3. Optionally, type `make check' to run any self-tests that come with
+     the package.
+
+  4. Type `make install' to install the programs and any data files and
+     documentation.
+
+  5. You can remove the program binaries and object files from the
+     source code directory by typing `make clean'.  To also remove the
+     files that `configure' created (so you can compile the package for
+     a different kind of computer), type `make distclean'.  There is
+     also a `make maintainer-clean' target, but that is intended mainly
+     for the package's developers.  If you use it, you may have to get
+     all sorts of other programs in order to regenerate files that came
+     with the distribution.
+
+Compilers and Options
+=====================
+
+   Some systems require unusual options for compilation or linking that
+the `configure' script does not know about.  You can give `configure'
+initial values for variables by setting them in the environment.  Using
+a Bourne-compatible shell, you can do that on the command line like
+this:
+     CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure
+
+Or on systems that have the `env' program, you can do it like this:
+     env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure
+
+Compiling For Multiple Architectures
+====================================
+
+   You can compile the package for more than one kind of computer at the
+same time, by placing the object files for each architecture in their
+own directory.  To do this, you must use a version of `make' that
+supports the `VPATH' variable, such as GNU `make'.  `cd' to the
+directory where you want the object files and executables to go and run
+the `configure' script.  `configure' automatically checks for the
+source code in the directory that `configure' is in and in `..'.
+
+   If you have to use a `make' that does not support the `VPATH'
+variable, you have to compile the package for one architecture at a time
+in the source code directory.  After you have installed the package for
+one architecture, use `make distclean' before reconfiguring for another
+architecture.
+
+Installation Names
+==================
+
+   By default, `make install' will install the package's files in
+`/usr/local/bin', `/usr/local/man', etc.  You can specify an
+installation prefix other than `/usr/local' by giving `configure' the
+option `--prefix=PATH'.
+
+   You can specify separate installation prefixes for
+architecture-specific files and architecture-independent files.  If you
+give `configure' the option `--exec-prefix=PATH', the package will use
+PATH as the prefix for installing programs and libraries.
+Documentation and other data files will still use the regular prefix.
+
+   In addition, if you use an unusual directory layout you can give
+options like `--bindir=PATH' to specify different values for particular
+kinds of files.  Run `configure --help' for a list of the directories
+you can set and what kinds of files go in them.
+
+   If the package supports it, you can cause programs to be installed
+with an extra prefix or suffix on their names by giving `configure' the
+option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
+
+Optional Features
+=================
+
+   Some packages pay attention to `--enable-FEATURE' options to
+`configure', where FEATURE indicates an optional part of the package.
+They may also pay attention to `--with-PACKAGE' options, where PACKAGE
+is something like `gnu-as' or `x' (for the X Window System).  The
+`README' should mention any `--enable-' and `--with-' options that the
+package recognizes.
+
+   For packages that use the X Window System, `configure' can usually
+find the X include and library files automatically, but if it doesn't,
+you can use the `configure' options `--x-includes=DIR' and
+`--x-libraries=DIR' to specify their locations.
+
+Specifying the System Type
+==========================
+
+   There may be some features `configure' can not figure out
+automatically, but needs to determine by the type of host the package
+will run on.  Usually `configure' can figure that out, but if it prints
+a message saying it can not guess the host type, give it the
+`--host=TYPE' option.  TYPE can either be a short name for the system
+type, such as `sun4', or a canonical name with three fields:
+     CPU-COMPANY-SYSTEM
+
+See the file `config.sub' for the possible values of each field.  If
+`config.sub' isn't included in this package, then this package doesn't
+need to know the host type.
+
+   If you are building compiler tools for cross-compiling, you can also
+use the `--target=TYPE' option to select the type of system they will
+produce code for and the `--build=TYPE' option to select the type of
+system on which you are compiling the package.
+
+Sharing Defaults
+================
+
+   If you want to set default values for `configure' scripts to share,
+you can create a site shell script called `config.site' that gives
+default values for variables like `CC', `cache_file', and `prefix'.
+`configure' looks for `PREFIX/share/config.site' if it exists, then
+`PREFIX/etc/config.site' if it exists.  Or, you can set the
+`CONFIG_SITE' environment variable to the location of the site script.
+A warning: not all `configure' scripts look for a site script.
+
+Operation Controls
+==================
+
+   `configure' recognizes the following options to control how it
+operates.
+
+`--cache-file=FILE'
+     Use and save the results of the tests in FILE instead of
+     `./config.cache'.  Set FILE to `/dev/null' to disable caching, for
+     debugging `configure'.
+
+`--help'
+     Print a summary of the options to `configure', and exit.
+
+`--quiet'
+`--silent'
+`-q'
+     Do not print messages saying which checks are being made.  To
+     suppress all normal output, redirect it to `/dev/null' (any error
+     messages will still be shown).
+
+`--srcdir=DIR'
+     Look for the package's source code in directory DIR.  Usually
+     `configure' can determine that directory automatically.
+
+`--version'
+     Print the version of Autoconf used to generate the `configure'
+     script, and exit.
+
+`configure' also accepts some other, not widely useful, options.