		      Building and Installing Emacs
		      on Windows NT and Windows 95

You need a compiler package to build and install Emacs on NT or Win95.
If you don't have one, precompiled versions are available in
ftp://ftp.cs.washington.edu/pub/ntemacs/<version>.

Configuring:

(1) In previous versions, you needed to edit makefile.def
    to reflect the compiler package that you are using.  You should no
    longer have to do this if you have defined the INCLUDE and LIB 
    environment variables, as is customary for use with Windows compilers.
    (Unless you are using MSVCNT 1.1, in which case you will need
    to set MSVCNT11 to be a non-zero value at the top of makefile.def.)

(2) Choose the directory into which Emacs will be installed, and
    edit makefile.def to define INSTALL_DIR to be this directory.  
    (Alternatively, if you have INSTALL_DIR set as an environment
    variable, the build process will ignore the value in makefile.def
    and use the value of the environment variable instead.)  Note 
    that if it is not installed in the directory in which it is built,
    the ~16 MB of lisp files will be copied into the installation directory.

    Also, makefile.def is sometimes unpacked read-only; use
   
    > attrib -r makefile.def

    to make it writable.

(3) You may need to edit nt/paths.h to specify some other device
    instead of `C:'.

Building:

(4) The target to compile the sources is "all", and is recursive starting 
    one directory up.  The makefiles for the NT port are in files named 
    "makefile.nt".  To get things started, type in this directory:

    > nmake -f makefile.nt all

    or use the ebuild.bat file.

    When the files are compiled, you will see some warning messages declaring
    that some functions don't return a value, or that some data conversions
    will be lossy, etc.  You can safely ignore these messages.  The warnings
    may be fixed in the main FSF source at some point, but until then we
    will just live with them.

    NOTE: You should not have to edit src\paths.h to get Emacs to run
    correctly.  All of the variables in src\paths.h are configured
    during start up using the nt\emacs.bat file (which gets installed 
    as bin\emacs.bat -- see below).

Installing:

(5) Currently, Emacs requires a number of environment variables to be set
    for it to run correctly.  A batch file, emacs.bat, is provided that 
    sets these variables appropriately and then runs the executable
    (emacs.bat is generated using the definition of INSTALL_DIR in
    nt\makefile.def and the contents of nt\emacs.bat.in).

(6) The install process will install the files necessary to run Emacs in 
    INSTALL_DIR (which may be the directory in which it was built), 
    and create a program manager/folder icon in a folder called GNU Emacs.
    From this directory, type:

    > nmake -f makefile.nt install

    or use the install.bat file.

(7) Create the Emacs startup file.  This file can be named either .emacs,
    as on Unix, or _emacs.  Note that Emacs requires the environment 
    variable HOME to be set in order for it to locate the startup file.  
    HOME could be set, for example, in the System panel of the Control
    Panel on NT, or in autoexec.bat on Win95.

(8) Start up Emacs.

    The installation process should have run the addpm.exe program, which
    does two things.  First, it will create a set of registry keys that
    tell Emacs where to find its support files (lisp, info, etc.).
    Second, it will create a folder containing an icon linked to
    runemacs.exe (a wrapper program for invoking Emacs).  You can
    also invoke addpm.exe by hand, giving the absolute directory name
    of the installation directory as the first argument:

        addpm.exe %INSTALL_DIR%

    Now, to run Emacs, simply click on the icon in the newly created
    folder or invoke runemacs.exe from a command prompt.

    Another alternative for running Emacs is to use the emacs.bat batch
    file in the bin directory (this was the traditional method of invoking
    Emacs).  Edit the emacs.bat file to change the emacs_dir environment
    variable to point to the Emacs installation directory and invoke the
    emacs.bat file to run Emacs.

    Note that, on Win95, you are likely to get "Out of environment space"
    messages when invoking the emacs.bat batch file.  The problem is that
    the console process in which the script is executed runs out of memory
    in which to set the Emacs environment variables.  To get around this
    problem, create a shortcut icon to the emacs.bat script.  Then right
    click on the icon and select Properties.  In the dialog box that pops
    up, select the Memory tab and then change the Environment memory
    allocation from "Auto" to "1024".  Close the dialog box and then
    double click on the icon to start Emacs.
