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-rw-r--r--macros/latex/contrib/l3kernel/expl3.dtx20
1 files changed, 15 insertions, 5 deletions
diff --git a/macros/latex/contrib/l3kernel/expl3.dtx b/macros/latex/contrib/l3kernel/expl3.dtx
index 67e22ca639..c266a2c2da 100644
--- a/macros/latex/contrib/l3kernel/expl3.dtx
+++ b/macros/latex/contrib/l3kernel/expl3.dtx
@@ -24,7 +24,7 @@
%
%<*driver|generic|package|2ekernel>
%</driver|generic|package|2ekernel>
-\def\ExplFileDate{2020-02-14}%
+\def\ExplFileDate{2020-02-21}%
%<*driver>
\documentclass[full]{l3doc}
\usepackage{graphicx}
@@ -51,7 +51,7 @@
% }^^A
% }
%
-% \date{Released 2020-02-14}
+% \date{Released 2020-02-21}
%
% \maketitle
%
@@ -922,6 +922,12 @@
% \item[xdvipdfmx] Use the \texttt{xdvipdfmx} driver (\XeTeX{} only).
% \end{itemize}
%
+% \DescribeOption{suppress-backend-headers}
+% The \texttt{suppress-backend-headers} option suppresses loading of
+% backend-specific header files; currently this only affects \texttt{dvips}.
+% This option is available to support DVI-based routes that do not
+% support the |header| line used by \texttt{dvips}.
+%
% \section{Using \pkg{expl3} with formats other than \LaTeXe{}}
%
% As well as the \LaTeXe{} package \pkg{expl3}, there is also a
@@ -1119,7 +1125,7 @@
% Loading with \LaTeXe{} may be as part of the format (pre-loading)
% or as a package. We have to allow for both possible paths, and of
% course the package being loaded on to of the pre-load. That means
-% the the code here must be safe against re-loading.
+% the code here must be safe against re-loading.
%
% \begin{macrocode}
%<*package&loader|2ekernel>
@@ -1244,7 +1250,8 @@
% \begin{variable}{\l_@@_options_clist}
% \begin{macrocode}
%<*!2ekernel>
-\clist_new:N \l_@@_options_clist
+\cs_if_exist:NF \l_@@_options_clist
+ { \clist_new:N \l_@@_options_clist }
\DeclareOption*
{ \clist_put_right:NV \l_@@_options_clist \CurrentOption }
\ProcessOptions \relax
@@ -1272,10 +1279,13 @@
\sys_load_debug:
\debug_on:n { log-functions }
} ,
+ suppress-backend-headers .bool_set_inverse:N
+ = \g__kernel_backend_header_bool ,
+ suppress-backend-headers .initial:n = false ,
undo-recent-deprecations .code:n =
{
- \sys_load_deprecation:
\bool_gset_true:N \g__kernel_deprecation_undo_recent_bool
+ \sys_load_deprecation:
}
}
% \end{macrocode}