1 files changed, 9 insertions, 9 deletions
diff --git a/lisp/textmodes/tex-mode.el b/lisp/textmodes/tex-mode.el
index 40d26ee380..9f7ff975e5 100644
--- a/lisp/textmodes/tex-mode.el
+++ b/lisp/textmodes/tex-mode.el
@@ -64,7 +64,7 @@
   :group 'tex-run)
 
 ;;;###autoload
-(defcustom tex-directory "."
+(defcustom tex-directory (purecopy ".")
   "*Directory in which temporary files are written.
 You can make this `/tmp' if your TEXINPUTS has no relative directories in it
 and you don't try to apply \\[tex-region] or \\[tex-buffer] when there are
@@ -98,7 +98,7 @@ if the variable is non-nil."
   :group 'tex-file)
 
 ;;;###autoload
-(defcustom tex-run-command "tex"
+(defcustom tex-run-command (purecopy "tex")
   "*Command used to run TeX subjob.
 TeX Mode sets `tex-command' to this string.
 See the documentation of that variable."
@@ -106,7 +106,7 @@ See the documentation of that variable."
   :group 'tex-run)
 
 ;;;###autoload
-(defcustom latex-run-command "latex"
+(defcustom latex-run-command (purecopy "latex")
   "*Command used to run LaTeX subjob.
 LaTeX Mode sets `tex-command' to this string.
 See the documentation of that variable."
@@ -114,7 +114,7 @@ See the documentation of that variable."
   :group 'tex-run)
 
 ;;;###autoload
-(defcustom slitex-run-command "slitex"
+(defcustom slitex-run-command (purecopy "slitex")
   "*Command used to run SliTeX subjob.
 SliTeX Mode sets `tex-command' to this string.
 See the documentation of that variable."
@@ -122,7 +122,7 @@ See the documentation of that variable."
   :group 'tex-run)
 
 ;;;###autoload
-(defcustom tex-start-options ""
+(defcustom tex-start-options (purecopy "")
   "*TeX options to use when starting TeX.
 These immediately precede the commands in `tex-start-commands'
 and the input file name, with no separating space and are not shell-quoted.
@@ -132,7 +132,7 @@ If nil, TeX runs with no options.  See the documentation of `tex-command'."
   :version "22.1")
 
 ;;;###autoload
-(defcustom tex-start-commands "\\nonstopmode\\input"
+(defcustom tex-start-commands (purecopy "\\nonstopmode\\input")
   "*TeX commands to use when starting TeX.
 They are shell-quoted and precede the input file name, with a separating space.
 If nil, no commands are used.  See the documentation of `tex-command'."
@@ -163,7 +163,7 @@ Combined with `latex-standard-block-names' for minibuffer completion."
   :group 'tex-run)
 
 ;;;###autoload
-(defcustom tex-bibtex-command "bibtex"
+(defcustom tex-bibtex-command (purecopy "bibtex")
   "*Command used by `tex-bibtex-file' to gather bibliographic data.
 If this string contains an asterisk (`*'), that is replaced by the file name;
 otherwise, the file name, preceded by blank, is added at the end."
@@ -171,7 +171,7 @@ otherwise, the file name, preceded by blank, is added at the end."
   :group 'tex-run)
 
 ;;;###autoload
-(defcustom tex-dvi-print-command "lpr -d"
+(defcustom tex-dvi-print-command (purecopy "lpr -d")
   "*Command used by \\[tex-print] to print a .dvi file.
 If this string contains an asterisk (`*'), that is replaced by the file name;
 otherwise, the file name, preceded by blank, is added at the end."
@@ -179,7 +179,7 @@ otherwise, the file name, preceded by blank, is added at the end."
   :group 'tex-view)
 
 ;;;###autoload
-(defcustom tex-alt-dvi-print-command "lpr -d"
+(defcustom tex-alt-dvi-print-command (purecopy "lpr -d")
   "*Command used by \\[tex-print] with a prefix arg to print a .dvi file.
 If this string contains an asterisk (`*'), that is replaced by the file name;
 otherwise, the file name, preceded by blank, is added at the end.