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-rw-r--r--Master/texmf-dist/source/latex/l3experimental/l3str/l3str-expl.dtx20
1 files changed, 17 insertions, 3 deletions
diff --git a/Master/texmf-dist/source/latex/l3experimental/l3str/l3str-expl.dtx b/Master/texmf-dist/source/latex/l3experimental/l3str/l3str-expl.dtx
index 9305a8fe07c..89f34666730 100644
--- a/Master/texmf-dist/source/latex/l3experimental/l3str/l3str-expl.dtx
+++ b/Master/texmf-dist/source/latex/l3experimental/l3str/l3str-expl.dtx
@@ -34,10 +34,24 @@
%% -----------------------------------------------------------------------
%
%<*driver|package>
-\RequirePackage{expl3}
-\GetIdInfo$Id: l3str-expl.dtx 5226 2014-07-18 18:08:01Z joseph $
+% The version of expl3 required is tested as early as possible, as
+% some really old versions do not define \ProvidesExplPackage.
+\RequirePackage{expl3}[2014/08/25]
+%<package>\@ifpackagelater{expl3}{2014/08/25}
+%<package> {}
+%<package> {%
+%<package> \PackageError{l3str}{Support package l3kernel too old}
+%<package> {%
+%<package> Please install an up to date version of l3kernel\MessageBreak
+%<package> using your TeX package manager or from CTAN.\MessageBreak
+%<package> \MessageBreak
+%<package> Loading l3str will abort!%
+%<package> }%
+%<package> \endinput
+%<package> }
+\GetIdInfo$Id: l3str-expl.dtx 5378 2014-08-25 10:59:48Z joseph $
{L3 Experimental strings}
-\def\ExplSyntaxName{l3str}
+\def\ExplFileName{l3str}
%</driver|package>
%<*driver>
\documentclass[full]{l3doc}