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-rw-r--r--macros/latex/contrib/iftex/iftex.sty15
1 files changed, 13 insertions, 2 deletions
diff --git a/macros/latex/contrib/iftex/iftex.sty b/macros/latex/contrib/iftex/iftex.sty
index feb5a75f8d..4c1923c2c1 100644
--- a/macros/latex/contrib/iftex/iftex.sty
+++ b/macros/latex/contrib/iftex/iftex.sty
@@ -16,7 +16,6 @@
%% ifptex Takayuki YATO
%% ifpdf Heiko Oberdiek and LaTeX3 Project
-
% Only load once (not needed in LaTeX, but does no harm).
\csname IFTEX\string @loaded\endcsname
\expandafter\let\csname IFTEX\string @loaded\endcsname\endinput
@@ -31,7 +30,7 @@
% ProvidesPackage declaration in LaTeX
\begingroup\expandafter\expandafter\expandafter\endgroup
\expandafter\ifx\csname ProvidesPackage\endcsname\relax\else
- \ProvidesPackage{iftex}[2019/10/24 v1.0a TeX engine tests]
+ \ProvidesPackage{iftex}[2019/11/04 v1.0b TeX engine tests]
\fi
% Save @ catcode, to restore at end, not needed in LaTeX.
@@ -108,6 +107,7 @@
\IFTEX@let{eTeX}{etex}
% pdftex (including in dvi mode)
+\IFTEX@let{IFTEX@savedpdftex}{pdftex}
\ifx\pdftexversion\@undefined
\IFTEX@let{pdftex}{false}
\else
@@ -173,6 +173,7 @@
\IFTEX@let{pTeXng}{ptexng}
% vtex
+\IFTEX@let{IFTEX@savedVTeX}{VTeX}
\ifx\VTeXversion\@undefined
\IFTEX@let{vtex}{false}
\else
@@ -227,5 +228,15 @@ end
}}
\fi
+
+% special compat for scrbase
+\ifx\scr@ifpdftex\@undefined\else\ifx\ifIFTEX@savedpdftex\relax\else
+ \IFTEX@let{pdftex}{IFTEX@savedpdftex}
+ \IFTEX@protected\def\RequirePDFTeX{\IFTEX@Require\ifPDFTeX{pdfTeX}\fi}
+\fi\fi
+\ifx\scr@ifVTeX\@undefined\else\ifx\ifIFTEX@savedVTeX\relax\else
+ \IFTEX@let{VTeX}{IFTEX@savedVTeX}
+\fi\fi
+
% restore things
\catcode64 \IFTEX@atcatcode