lib/chkconfig.ltx

@@ -120,22 +120,12 @@
     #6
   \fi}
 
-
-% For the version test below, we need to load the tested package.
-% However, we are only interested in the version information, so
-% we redefine an internal method of \ProvidesPackage to quit
-% as soon as we have that information 
-\let\chk@pr@videpackage\@pr@videpackage
-\def\@pr@videpackage[#1]{\chk@pr@videpackage[#1]\endinput}
-
 % Tests whether an package is present and also adds the version to the package list
 \newcommand{\TestPackageAddVersion}[2][\default]{
    \def\default{#2}
    \def\package@version{}
+   % The actual test only works after the package has been loaded
    \IfFileExists{#1.sty}{%
-      % The actual test only works after the package has been loaded,
-      % but with the redefinition of \@pr@videpackage above, we quit
-      % as early as possible
       \RequirePackage{#1}%
       \protected@edef\package@@version{\csname ver@#1.sty\endcsname}%
       \protected@edef\package@version{\expandafter\@parse@version\package@@version//00\@nil}%
@@ -222,14 +212,13 @@
 \AddPackage[\expandafter\@parse@version\fmtversion//00\@nil]{LaTeX}
 
 %%% And now, the list of available languages
-% Up to 2016 \the\everyjob contains something like
+% The trick is to know that \the\everyjob contains something like
 %  \typeout{LaTeX2e <2001/06/01>}
 %  \typeout{Babel <v3.7h> and hyphenation patterns for american, french, german, ngerman, nohyphenation, loaded.}
 % All we have to do is to extract the list from there:
 % (1) concatenate all the messages that are displayed everytime the
 % format is loaded. The is done by redefining locally \typeout to
 % append its argument to the macro \mesg.
-% But see below for recent versions of babel.
 \def\mesg{}
 {\def\typeout#1{\xdef\mesg{\mesg #1}}
  \the\everyjob}
@@ -237,27 +226,19 @@
 % (2) strip the useless parts from \mesg. This uses the fact that TeX
 % allows to define macros with parameters delimited by arbitrary text.
 \def\platexname{pLaTeX2e}
-\def\langs{}
 \ifx\pfmtname\platexname
   \def\langs{japanese}
 \else
-  \ifx\mesg\empty
-%    As of 2016, babel does not print out the loaded hyphenation patterns to
-%    the log anymore, so \mesg will be empty. For the following method,
-%    see https://tex.stackexchange.com/questions/330085/
-     \@ifundefined{bbl@languages}{}{
-        \def\bbl@elt#1#2#3#4{#1, }
-        \edef\@langs{\bbl@languages}
-        \def\strip#1, \endmark{\def\langs{#1}}
-        \expandafter\strip\@langs\endmark
-      }
-  \else
-    \def\strip#1patterns for #2, loaded.#3\endmark{\def\langs{#2}}
-    \expandafter\strip\mesg\endmark
-  \fi
+  \def\strip#1patterns for #2, loaded.#3\endmark{\def\langs{#2}}
+  \expandafter\strip\mesg\endmark
 \fi
 
 % (3) handle the result
+% FIXME: As of 2016, babel does not print out the loaded hyphenation patterns to
+%        the log anymore, so this discontinues to work. For possible workarounds
+%        (with babel), see https://tex.stackexchange.com/questions/330085/
+%        Leaving this activated for the time being, since it probably still
+%        works with older distributions.
 \message{^^J\prefix checking for available hyphenation patterns... \langs}
 \AddVariable{languages}{\langs}
 

status.24x

@@ -106,9 +106,3 @@ What's new
 
 * BUILD/INSTALLATION
 
-- Fix (only informal) check for hyphenation patterns in (re)configuration.
-
-- Improve check for package versions in (re)configuration. Particularly,
-  configuration does not break any longer if a sub-dependency of a 
-  tested package is missing (bug 13112),
-