[5263] more verbose msg if texinfo.tex test fails

[karl]

Revision: 5263
          http://svn.sv.gnu.org/viewvc/?view=rev&root=texinfo&revision=5263
Author:   karl
Date:     2013-06-21 23:20:50 +0000 (Fri, 21 Jun 2013)
Log Message:
-----------
more verbose msg if texinfo.tex test fails

Modified Paths:
--------------
    trunk/ChangeLog
    trunk/util/texi2dvi

Modified: trunk/ChangeLog
===================================================================
--- trunk/ChangeLog     2013-06-08 19:19:11 UTC (rev 5262)
+++ trunk/ChangeLog     2013-06-21 23:20:50 UTC (rev 5263)
@@ -1,3 +1,9 @@
+2013-06-21  Karl Berry  <address@hidden>
+
+       * texi2dvi (run_makeinfo): more verbose error message if our
+       test reading texinfo.tex fails.  Suggestion from Vincent B,
+       25 May 2013 23:10:58.
+
 2013-06-08  Sergey Poznyakoff  <address@hidden>
 
        Skip the current screen when repeating searches.

Modified: trunk/util/texi2dvi
===================================================================
--- trunk/util/texi2dvi 2013-06-08 19:19:11 UTC (rev 5262)
+++ trunk/util/texi2dvi 2013-06-21 23:20:50 UTC (rev 5263)
@@ -1360,7 +1360,10 @@
        # close stdin.
        $TEX txiversion.tex </dev/null >txiversion.out 2>txiversion.err
     ); then :; else
-      report "texinfo.tex appears to be broken:"
+      report "texinfo.tex appears to be broken.
+This may be due to the environment variable TEX set to something
+other than (plain) tex, a corrupt texinfo.tex file, or 
+to tex itself simply not working."
       cat "$version_test_dir/txiversion.out"
       cat "$version_test_dir/txiversion.err" >&2
       error 1 "quitting."