1 files changed, 13 insertions, 7 deletions
diff --git a/Master/texmf-dist/source/latex/ifetex/ifetex.dtx b/Master/texmf-dist/source/latex/ifetex/ifetex.dtx
index dac7c1fe434..a563833790b 100644
--- a/Master/texmf-dist/source/latex/ifetex/ifetex.dtx
+++ b/Master/texmf-dist/source/latex/ifetex/ifetex.dtx
@@ -24,10 +24,10 @@
 %<*driver>
 \ProvidesFile{ifetex.dtx}[%
 %<=*DATE>
-    2011/10/31
+    2011/11/06
 %<=/DATE>
 %<=*VERSION>
-    v1.0
+    v1.1
 %<=/VERSION>
     Conditional to test for e-TeX]
 \documentclass{ydoc}
@@ -44,7 +44,7 @@
 %</driver>
 % \fi
 %
-% \CheckSum{32}
+% \CheckSum{41}
 %
 % \CharacterTable
 %  {Upper-case    \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
@@ -64,6 +64,7 @@
 %
 %
 % \changes{v1.0}{2011/10/31}{First version.}
+% \changes{v1.1}{2011/11/06}{Changed to manual, local declaration of \cs{ifetex}.}
 %
 % \DoNotIndex{\newcommand,\newenvironment}
 %
@@ -88,6 +89,11 @@
 %
 % The package currently test if \Macro\eTeXversion is defined as a primitive and assumes \eTeX\ if so.
 %
+% Note that almost all modern \LaTeX\ distributions use \eTeX.
+% The two major distributions \TeX\ Live and Mik\TeX\ support it and use it by default (except for the classic |tex|).
+% The \LaTeX\ which comes with \emph{Scientific Work Place} by MacKichan seems to not support \eTeX\ yet.
+% Package authors can use this package to test for missing \eTeX\ and provide fall-back code.
+%
 % \StopEventually{}
 % \section{Implementation}
 %
@@ -131,16 +137,16 @@
 % \begin{macro}{ifetex}
 % Checks if \Macro\eTeXversion is a primitive.
 %    \begin{macrocode}
-\newif\ifetex
 \begingroup
 \edef\tempa{\meaning\eTeXversion}%
 \edef\tempb{\string\eTeXversion}%
 \ifx\tempa\tempb
-    \global\etextrue
+    \endgroup
+    \expandafter\let\csname ifetex\expandafter\endcsname\csname iftrue\endcsname
 \else
-    \global\etexfalse
+    \endgroup
+    \expandafter\let\csname ifetex\expandafter\endcsname\csname iffalse\endcsname
 \fi
-\endgroup
 %    \end{macrocode}
 % \end{macro}
 % \iffalse