diff options
Diffstat (limited to 'Master/texmf-dist/tex/latex/ifetex')
| -rw-r--r-- | Master/texmf-dist/tex/latex/ifetex/ifetex.sty | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/Master/texmf-dist/tex/latex/ifetex/ifetex.sty b/Master/texmf-dist/tex/latex/ifetex/ifetex.sty index f7b5bc17cf5..b2bc998238a 100644 --- a/Master/texmf-dist/tex/latex/ifetex/ifetex.sty +++ b/Master/texmf-dist/tex/latex/ifetex/ifetex.sty @@ -16,10 +16,31 @@ %% and the derived filebase ifetex.sty. %% \ProvidesPackage{ifetex}[% - 2011/11/06 - v1.1 + 2011/12/15 + v1.2 ifetex] \@@input ifetex +\newcommand*\NeedsETeX[1][]{% + \ifetex + \ifx\@nnil#1\@nnil\else + \ifdim\the\eTeXversion\eTeXrevision\p@<#1\p@\relax + \@latex@error{This file needs e-TeX with version #1% + \MessageBreak but only version \the\eTeXversion\eTeXrevision is available}{% + The current input file will not be processed + further,\MessageBreak + because it was written for a newer version of e-TeX. + \MessageBreak\@ehd}% + \endinput + \fi\fi + \else + \@latex@error{This file needs e-TeX}{% + The current input file will not be processed + further,\MessageBreak + because it was written for e-TeX which is not available. + \MessageBreak\@ehd}% + \endinput + \fi +} \endinput %% %% End of file `ifetex.sty'. |