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TeX needs to know where to find the ‘texinfo.tex’ file that the ‘\input texinfo’ command on the first line reads. The ‘texinfo.tex’ file tells TeX how to handle @-commands; it is included in all standard GNU distributions.
Usually, the installer has put the ‘texinfo.tex’ file in the default directory that contains TeX macros when GNU Texinfo, Emacs or other GNU software is installed. In this case, TeX will find the file and you do not need to do anything special. If this has not been done, you can put ‘texinfo.tex’ in the current directory when you run TeX, and TeX will find it there.
Also, you should install ‘epsf.tex’, if it is not already installed
from another distribution. More details are at the end of the description
of the @image
command (see Images).
Likewise for ‘pdfcolor.tex’, if it is not already installed and you use pdftex.
Optionally, you may create an additional ‘texinfo.cnf’, and install
it as well. This file is read by TeX when the @setfilename
command is executed (see @setfilename
). You can put any
commands you like there, according to local site-wide conventions. They
will be read by TeX when processing any Texinfo document. For
example, if ‘texinfo.cnf’ contains the line ‘@afourpaper’
(see A4 Paper), then all Texinfo documents will be processed with
that page size in effect. If you have nothing to put in
‘texinfo.cnf’, you do not need to create it.
If neither of the above locations for these system files suffice for
you, you can specify the directories explicitly. For
‘texinfo.tex’, you can do this by writing the complete path for the
file after the \input
command. Another way, that works for both
‘texinfo.tex’ and ‘texinfo.cnf’ (and any other file TeX
might read), is to set the TEXINPUTS
environment variable in your
‘.cshrc’ or ‘.profile’ file.
Which you use of ‘.cshrc’ or ‘.profile’ depends on
whether you use a Bourne shell-compatible (sh
, bash
,
ksh
, …) or C shell-compatible (csh
, tcsh
)
command interpreter. The latter read the ‘.cshrc’ file for
initialization information, and the former read ‘.profile’.
In a ‘.cshrc’ file, you could use the following csh
command
sequence:
setenv TEXINPUTS .:/home/me/mylib:/usr/lib/tex/macros
In a ‘.profile’ file, you could use the following sh
command
sequence:
TEXINPUTS=.:/home/me/mylib:/usr/lib/tex/macros export TEXINPUTS
On MS-DOS/MS-Windows, you would say it like this(10):
set TEXINPUTS=.;d:/home/me/mylib;c:/usr/lib/tex/macros
It is customary for DOS/Windows users to put such commands in the ‘autoexec.bat’ file, or in the Windows Registry.
These settings would cause TeX to look for ‘\input’ file first in the current directory, indicated by the ‘.’, then in a hypothetical user’s ‘me/mylib’ directory, and finally in a system directory ‘/usr/lib/tex/macros’.
Finally, you may wish to dump a ‘.fmt’ file (see Memory dumps in Web2c) so that TeX can load Texinfo faster. (The disadvantage is that then updating ‘texinfo.tex’ requires redumping.) You can do this by running this command, assuming ‘epsf.tex’ is findable by TeX:
initex texinfo @dump
(dump
is a TeX primitive.) Then, move ‘texinfo.fmt’ to
wherever your .fmt
files are found; typically, this will be in the
subdirectory ‘web2c’ of your TeX installation.
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