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Code Editor : README

Appendix A Installing
*********************

Aspell requires gcc 2.95 (or better) as the C++ compiler.  Other C++
compilers should work with some effort.  Other C++ compilers for mostly
POSIX compliant (Unix, Linux, BeOS, Cygwin) systems should work without
any major problems provided that the compile can handle all of the
advanced C++ features Aspell uses.  C++ compilers for non-Unix systems
might work but it will take some work.  Aspell at very least requires a
Unix-like environment (`sh', `grep', `sed', `tr', ...), and Perl in
order to build.  Aspell also uses a few POSIX functions when necessary.

The latest version can always be found at GNU Aspell's home page at
`http://aspell.net'.

A.1 Generic Install Instructions
================================

./configure && make

For additional `configure' options type `./configure --help'.  You
can control what C++ compiler is used by setting the environment
variable `CXX' before running configure and you can control what flags
are passed to the C++ compile via the environment variable `CXXFLAGS'.
Static libraries are disabled by default since static libraries will
not work right due to the mixing of C and C++.  When a C program links
with the static libraries in Aspell it is likely to crash because
Aspell's C++ objects are not getting initialized correctly.  However,
if for some reason you want them, you can enable them via
`--enable-static'.

Aspell should then compile without any additional user intervention.
If you run into problems please first check the sections below as that
might solve your problem.

To install the program simply type

make install

After Aspell is installed at least one dictionary needs to be
installed.  You can find them at `http://aspell.net/'.  The `aspell'
program must be in your path in order for the dictionaries to install
correctly.

If you do not have Ispell or the traditional Unix `spell' utility
installed on your system then you should also copy the compatibility
scripts `ispell' and `spell' located in the `scripts/' directory into
your binary directory which is usually `/usr/local/bin' so that
programs that expect the `ispell' or `spell' command will work
correctly.

A.2 HTML Manuals and `make clean'
=================================

The Aspell distribution includes HTML versions of the User and
Developer's manual.  Unfortunately, doing a `make clean' will erase
them.  This is due to a limitation of automake which is not easily
fixed.  If makeinfo is installed they can easily be rebuild with `make
aspell.html aspell-dev.html', or you can unpack them from the tarbar.

A.3 Curses Notes
================

If you are having problems compiling `check_funs.cpp' then the most
likely reason is due to incompatibilities with the curses
implementation on your system.  You should first try disabling the
"wide" curses library by with the `--disable-wide-curses' configure
option..  By doing so you will lose support for properly displaying
UTF-8 characters but you may still be able to get the full screen
interface.  If this fails than you can disable curses support
altogether with the `--disable-curses' configure option.  By doing this
you will lose the nice full screen interface but hopefully you will be
able to at least get Aspell to compile correctly.

If the curses library is installed in a non-standard location than
you can specify the library and include directory with
`--enable-curses=LIB' and `--enable-curses-include=DIR'.

`LIB' can either be the complete path of the library--for example
     /usr/local/curses/libcurses.a
   or the name of the library (for example `ncurses') or a combined
location and library in the form `-LLIBDIR -lLIB' (for example
`-L/usr/local/ncurses/lib -lncurses').

DIR is the location of the curses header files (for example
`/usr/local/ncurses/include').

A.3.1 Unicode Support
---------------------

In order for Aspell to correctly spell check UTF-8 documents in full
screen mode the "wide" version of the curses library must be installed.
This is different from the normal version of curses library, and is
normally named `libcursesw' (with a `w' at the end) or `libncursesw'.
UTF-8 documents will not display correctly without the right curses
version installed.

In addition your system must also support the `mblen' function.
Although this function was defined in the ISO C89 standard (ANSI
X3.159-1989), not all systems have it.

A.4 Loadable Filter Notes
=========================

Support for being able to load additional filter modules at run-time
has only been verified to work on Linux platforms.  If you get linker
errors when trying to use a filter, then it is likely that loadable
filter support is not working yet on your platform.  Thus, in order to
get Aspell to work correctly you will need to avoid compiling the
filters as individual modules by using the
`--enable-compile-in-filters' when configuring Aspell with
`./configure'.

A.5 Upgrading from Aspell 0.50
==============================

The dictionary format has changed so dictionaries will need to be
recompiled.

All data, by default, is now included in `LIBDIR/aspell-0.60' so
that multiple versions of Aspell can more peacefully coexist.  This
included both the dictionaries and the language data files which were
stored in `SHAREDIR/aspell' before Aspell 0.60.

The format of the character data files has changed.  The new
character data files are installed with Aspell so you should not have
to worry about it unless you made a custom one.

The dictionary option `strip-accents' has been removed.  For this
reason the old English dictionary (up to 0.51) will no longer work.  A
new English dictionary is now available which avoids using this option.
In addition the `ignore-accents' option is currently unimplemented.

The flag `-l' is now a shortcut for `--lang', instead of `--list' as
it was with Aspell 0.50.

A.5.1 Binary Compatibility
--------------------------

The Aspell 0.60 library is binary compatible with the Aspell 0.50
library.  For this reason I chose _not_ to increment the major version
number (so-name) of the shared library by default which means programs
that were compiled for Aspell 0.50 will also work for Aspell 0.60.
However, this means that having both Aspell 0.50 and Aspell 0.60
installed at the same time can be pragmatic.  If you wish to allow both
Aspell 0.50 and 0.60 to be installed at the same time then you can use
the configure option `--incremented-soname' which will increment
so-name.  You should only use this option if you know what you are
doing.  It is up to you to somehow ensure that both the Aspell 0.50 and
0.60 executables can coexist.

If after incrementing the so-name you wish to allow programs compiled
for Aspell 0.50 to use Aspell 0.60 instead (thus implying that Aspell
0.50 is not installed) then you can use a special compatibility library
which can be found in the `lib5' directory.  This directory will not be
entered when building or installing Aspell so you must manually build
and install this library.  You should build it after the rest of Aspell
is built.  The order in which this library is installed, with relation
to the rest of Aspell, is also important.  If it is installed _after_
the rest of Aspell then new programs will link to the old library
(which will work for Aspell 0.50 or 0.60) when built, if installed
_before_, new programs will link with the new library (Aspell 0.60
only).

A.6 Upgrading from Aspell .33/Pspell .12
========================================

Aspell has undergone an extremely large number of changes since the
previous Aspell/Pspell release.  For one thing Pspell has been merged
with Aspell so there in no longer two separate libraries you have to
worry about.

Because of the massive changes between Aspell/Pspell and Aspell 0.50
you may want to clean out the old files before installing the the new
Aspell.  To do so do a `make uninstall' in the original Aspell and
Pspell source directories.

The way dictionaries are handled has also changed.  This includes a
change in the naming conventions of both language names and
dictionaries.  Due to the language name change, your old personal
dictionaries will not be recognized.  However, you can import the old
dictionaries by running the `aspell-import' script.  This also means
that dictionaries designed to work with older versions of Aspell are
not likely to function correctly.  Fortunately new dictionary packages
are available for most languages.  You can find them off of the Aspell
home page at `http://aspell.net'.

The Pspell ABI is now part of Aspell except that the name of
everything has changed due to the renaming of Pspell to Aspell.  In
particular please note the following name changes:

pspell -> aspell
     manager -> speller
     emulation -> enumeration
     master_word_list -> main_word_list

Please also note that the name of the `language-tag' option has
changed to `lang'.  However, for backward compatibility the
`language-tag' option will still work.

However, you should also be able to build applications that require
Pspell with the new Aspell as a backward compatibility header file is
provided.

Due to a change in the way dictionaries are handled, scanning for
`.pwli' files in order to find out which dictionaries are available
will no longer work.  This means that programs that relied on this
technique may have problems finding dictionaries.  Fortunately, GNU
Aspell now provided a uniform way to list all installed dictionaries
via the c API.  See the file `list-dicts.c' in the `examples/'
directory for an example of how to do this.  Unfortunately there isn't
any simple way to find out which dictionaries are installed which will
work with both the old Aspell/Pspell and the new GNU Aspell.

A.7 Upgrading from a Pre-0.50 snapshot
======================================

At the last minute I decided to merge the `speller-util' program into
the main `aspell' program.  You may wish to remove that `speller-util'
program to avoid confusion.  This also means that dictionaries designed
to work with the snapshot will no longer work with the official release.

A.8 WIN32 Notes
===============

A.8.1 Getting the WIN32 version
-------------------------------

The latest version of the native Aspell/WIN32 port, including binaries,
can be found at `http://aspell.net/win32'.  This page has,
unfortunately, not been updated for Aspell 0.60.  If you are interested
in updated the native port please let me know.

A.8.2 Building the WIN32 version
--------------------------------

There are two basically different ways of building Aspell using GCC for
WIN32: You can either use the Cygwin compiler, which will produce
binaries that depend on the POSIX layer in `cygwin1.dll'.  The other
way is using MinGW GCC, those binaries use the native C runtime from
Microsoft (MSVCRT.DLL).

A.8.2.1 Building Aspell using Cygwin
....................................

This works exactly like on other POSIX compatible systems using the
`./configure && make && make install' cycle.  Some versions of Cygwin
GCC will fail to link, this is caused by an incorrect `libstdc++.la' in
the `/lib' directory.  After removing or renaming this file, the build
progress should work (GCC-2.95 and GCC-3.x should work).

A.8.2.2 Building Aspell using MinGW
...................................

There are several different ways to build Aspell using MinGW.  The
easiest way is to use a Cygwin compiler but instruct it to build a
native binary rather than a Cygwin one.  To do this configure with:

./configure CFLAGS='-O2 -mno-cygwin' CXXFLAGS='-O2 -mno-cygwin'

You may also want to add the option `--enable-win32-relocatable' to
use more windows friendly directories.  *Note Win32-Directories::.  In
this case configure with:

./configure CFLAGS='-O2 -mno-cygwin' CXXFLAGS='-O2 -mno-cygwin' --enable-win32-relocatable

It should also be possible to build Aspell using the MSYS
environment.  But this has not been very well tested.  If building with
MSYS _do not_ add `CFLAGS ...' to configure.

A.8.2.3 Building Aspell without using Cygwin or MSYS
....................................................

It is also possible to build Aspell without Cygwin of MinGW by using
the files in the `win32/' subdirectory.  However, these files have not
been updated to work with Aspell 0.60.  Thus the following instructions
will not work without some effort.  If you do get Aspell to compile
this way please send me the updated files so that I can include them
with the next release.

To compile Aspell with the MinGW compiler, you will need at least
GCC-3.2 (as shipped with MinGW-2.0.3) and some GNU tools like `rm' and
`cp'.  The origin of those tools doesn't matter, it has shown to work
with any tools from MinGW/MSys, Cygwin or Linux.  To build Aspell, move
into the `win32' subdirectory and type `make'.  You can enable some
additional build options by either commenting out the definitions at
the head of the Makefile or passing those values as environment
variables or at the `make' command line.  Following options are
supported:

`DEBUGVERSION'
     If set to "1", the binaries will include debugging information
     (resulting in a much bigger size).

`CURSESDIR'
     Enter the path to the pdcurses library here, in order to get a
     nicer console interface (see below).

`MSVCLIB'
     Enter the filename of MS `lib.exe' here, if you want to build
     libraries that can be imported from MS Visual C++.

`WIN32_RELOCATABLE'
     If set to "1", Aspell will detect the prefix from the path where
     the DLL resides (see below for further details).

`TARGET'
     Sets a prefix to be used for cross compilation (e.g.
     `/usr/local/bin/i586-mingw32msvc-' to cross compile from Linux).

There are also a MinGW compilers available for Cygwin and Linux, both
versions are able to compile Aspell using the prebuilt `Makefile'.
While the Cygwin port automatically detects the correct compiler, the
Linux version depends on setting the `TARGET' variable in the
`Makefile' (or environment) to the correct compiler prefix.

Other compilers may work.  There is a patch for MS Visual C++ 6.0
available at `ftp://ftp.gnu.org/gnu/aspell', but it needs a lot of
changes to the Aspell sources.  It has also been reported that the
Intel C++ compiler can be used for compilation.

A.8.3 (PD)Curses
----------------

In order to get the nice full screen interface when spell checking
files, a curses implementation that does not require Cygwin is
required.  The PDCurses (`http://pdcurses.sourceforge.net')
implementation is known to work, other implementations may work however
they have not been tested.  See the previous section for information on
specifying the location of the curses library and include file.

Curses notes:

* PDcurses built with MinGW needs to be compiled with
     `-DPDC_STATIC_BUILD' to avoid duplicate declaration of `DllMain'
     when compiling `aspell.exe'.

* The curses enabled version can cause trouble in some shells (MSys
     `rxvt', `emacs') and will produce errors like `initscr() LINES=1
     COLS=1: too small'.  Use a non-curses version for those purposes.

A.8.4 Directories
-----------------

If Aspell is configured with `--enable-win32-relocatable' or compiled
with `WIN32_RELOCATABLE=1' when using a Makefile, it can be run from
any directory: it will set `PREFIX' according to its install location
(assuming it resides in `PREFIX\\bin').  Your personal wordlists will
be saved in the `PREFIX' directory with their names changed from
`.aspell.LANG.*' to `LANG.*' (you can override the path by setting the
`HOME' environment variable).

A.8.5 Installer
---------------

The installer registers the DLLs as shared libraries, you should
increase the reference counter to avoid the libraries being uninstalled
if your application still depends on them (and decrease it again when
uninstalling your program).  The reference counters are located under:
     HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\SharedDLLs

The install location and version numbers are stored under

HKLM\SOFTWARE\Aspell

A.8.6 WIN32 consoles
--------------------

The console uses a different encoding than GUI applications, changing
this to to a Windows encoding (e.g.  1252) is not supported on
Win9x/Me.  On WinNT (and later) those codepages can be set by first
changing the console font to `lucida console', then changing the
codepage using `chcp 1252'.

Some alternative shells (e.g. MSys' `rxvt' or Cygwin's `bash') do a
codepage conversion (if correctly set up), so running Aspell inside
those shells might be a workaround for Win9x.

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