amsmath (19nov19)

git-svn-id: svn://tug.org/texlive/trunk@52854 c570f23f-e606-0410-a88d-b1316a301751

16 files changed, 42 insertions, 10 deletions

diff --git a/Master/texmf-dist/doc/latex/amsmath/README.md b/Master/texmf-dist/doc/latex/amsmath/README.md
index 868efe52c2c..c08ef1b2ab4 100644
--- a/Master/texmf-dist/doc/latex/amsmath/README.md
+++ b/Master/texmf-dist/doc/latex/amsmath/README.md
@@ -1,7 +1,7 @@
 The amsmath bundle for LaTeX
 ============================
 
-Release 2019-10-01 patch level 1
+Release 2019-11-17
 
 Overview
 --------
diff --git a/Master/texmf-dist/doc/latex/amsmath/amsbsy.pdf b/Master/texmf-dist/doc/latex/amsmath/amsbsy.pdf
index b436223e2f6..3260fb10a71 100644
--- a/Master/texmf-dist/doc/latex/amsmath/amsbsy.pdf
+++ b/Master/texmf-dist/doc/latex/amsmath/amsbsy.pdf
diff --git a/Master/texmf-dist/doc/latex/amsmath/amscd.pdf b/Master/texmf-dist/doc/latex/amsmath/amscd.pdf
index 69e05ee5c73..6094e56e419 100644
--- a/Master/texmf-dist/doc/latex/amsmath/amscd.pdf
+++ b/Master/texmf-dist/doc/latex/amsmath/amscd.pdf
diff --git a/Master/texmf-dist/doc/latex/amsmath/amsgen.pdf b/Master/texmf-dist/doc/latex/amsmath/amsgen.pdf
index 12312f41933..d81a3e9c4cd 100644
--- a/Master/texmf-dist/doc/latex/amsmath/amsgen.pdf
+++ b/Master/texmf-dist/doc/latex/amsmath/amsgen.pdf
diff --git a/Master/texmf-dist/doc/latex/amsmath/amsldoc.pdf b/Master/texmf-dist/doc/latex/amsmath/amsldoc.pdf
index a221839b30b..747bd6b264a 100644
--- a/Master/texmf-dist/doc/latex/amsmath/amsldoc.pdf
+++ b/Master/texmf-dist/doc/latex/amsmath/amsldoc.pdf
diff --git a/Master/texmf-dist/doc/latex/amsmath/amsldoc.tex b/Master/texmf-dist/doc/latex/amsmath/amsldoc.tex
index 9e08f029f5f..8573682a66d 100644
--- a/Master/texmf-dist/doc/latex/amsmath/amsldoc.tex
+++ b/Master/texmf-dist/doc/latex/amsmath/amsldoc.tex
@@ -64,7 +64,7 @@ Bug reports can be opened (category \texttt{#1}) at\\%
 
 \title{User's Guide for the \nipkg{amsmath} Package (Version~2.1)}
 \author{American Mathematical Society, \LaTeX3 Project}
-\date{1999-12-13 (revised 2002-02-25, 2016-11-14, 2018-04-05)}
+\date{1999-12-13\\(revised 2002-02-25, 2016-11-14, 2018-04-05, 2019-10-14)}
 \makeatletter
 \def\@thanks{\bigskip\MaintainedByLaTeXTeam{amslatex}}
 \makeatother
@@ -1372,9 +1372,12 @@ superscript\index{subscripts and superscripts} above a binary relation.
 In the \nipkg{amsmath} package there are somewhat more general commands,
 \cn{overset} and \cn{underset}, that can be used to place one symbol
 above or below another symbol, whether it's a relation or something
-else. The input |\overset{*}{X}| will place a superscript-size $*$ above
-the $X$: $\overset{*}{X}$; \cn{underset} is the analog for adding a
-symbol underneath.
+else. The input |\overset{*}{X}| will place a superscript-size {\small$*$} above
+the {\small$X$}: {\small$\smash{\overset{*}{X}}$};
+\cn{underset} is the analog for adding a
+symbol underneath. The command \cn{overunderset} is a combination of
+these, taking three arguments to place superscript sized expressions
+above and below the same base.
 
 See also the description of \cn{sideset} in \secref{sideset}.
 
diff --git a/Master/texmf-dist/doc/latex/amsmath/amsmath.pdf b/Master/texmf-dist/doc/latex/amsmath/amsmath.pdf
index 71b273d85ce..df541ceec98 100644
--- a/Master/texmf-dist/doc/latex/amsmath/amsmath.pdf
+++ b/Master/texmf-dist/doc/latex/amsmath/amsmath.pdf
diff --git a/Master/texmf-dist/doc/latex/amsmath/amsopn.pdf b/Master/texmf-dist/doc/latex/amsmath/amsopn.pdf
index 1543a5c08e6..9e2fe3336dd 100644
--- a/Master/texmf-dist/doc/latex/amsmath/amsopn.pdf
+++ b/Master/texmf-dist/doc/latex/amsmath/amsopn.pdf
diff --git a/Master/texmf-dist/doc/latex/amsmath/amstext.pdf b/Master/texmf-dist/doc/latex/amsmath/amstext.pdf
index 73e4af364a2..2a2001b6402 100644
--- a/Master/texmf-dist/doc/latex/amsmath/amstext.pdf
+++ b/Master/texmf-dist/doc/latex/amsmath/amstext.pdf
diff --git a/Master/texmf-dist/doc/latex/amsmath/amsxtra.pdf b/Master/texmf-dist/doc/latex/amsmath/amsxtra.pdf
index 77ac075445e..651c9db0da0 100644
--- a/Master/texmf-dist/doc/latex/amsmath/amsxtra.pdf
+++ b/Master/texmf-dist/doc/latex/amsmath/amsxtra.pdf
diff --git a/Master/texmf-dist/doc/latex/amsmath/changes.txt b/Master/texmf-dist/doc/latex/amsmath/changes.txt
index 054633ff2d9..e5e234cea22 100644
--- a/Master/texmf-dist/doc/latex/amsmath/changes.txt
+++ b/Master/texmf-dist/doc/latex/amsmath/changes.txt
@@ -1,4 +1,14 @@
 #########################
+# 2019-11-17 Release
+#########################
+
+2019-11-16  Frank Mittelbach  <Frank.Mittelbach@latex-project.org>
+
+	* amsmath.dtx (section{Math accents}):
+	Added \MakeRobust inside \DeclareMathAccent to match kernel
+        change (gh/216)
+
+#########################
 # 2019-10-01b Release
 #########################
 
diff --git a/Master/texmf-dist/doc/latex/amsmath/subeqn.pdf b/Master/texmf-dist/doc/latex/amsmath/subeqn.pdf
index 9250612b546..9e6e0726736 100644
--- a/Master/texmf-dist/doc/latex/amsmath/subeqn.pdf
+++ b/Master/texmf-dist/doc/latex/amsmath/subeqn.pdf
diff --git a/Master/texmf-dist/doc/latex/amsmath/technote.pdf b/Master/texmf-dist/doc/latex/amsmath/technote.pdf
index 4db485d6c8c..5457ffe15f0 100644
--- a/Master/texmf-dist/doc/latex/amsmath/technote.pdf
+++ b/Master/texmf-dist/doc/latex/amsmath/technote.pdf
diff --git a/Master/texmf-dist/doc/latex/amsmath/testmath.pdf b/Master/texmf-dist/doc/latex/amsmath/testmath.pdf
index f1af9357a3c..91012a919d2 100644
--- a/Master/texmf-dist/doc/latex/amsmath/testmath.pdf
+++ b/Master/texmf-dist/doc/latex/amsmath/testmath.pdf
diff --git a/Master/texmf-dist/source/latex/amsmath/amsmath.dtx b/Master/texmf-dist/source/latex/amsmath/amsmath.dtx
index 8671694b706..11b7545c266 100644
--- a/Master/texmf-dist/source/latex/amsmath/amsmath.dtx
+++ b/Master/texmf-dist/source/latex/amsmath/amsmath.dtx
@@ -86,7 +86,7 @@ Bug reports can be opened (category \texttt{#1}) at\\%
 %    \end{macrocode}
 %
 %    \begin{macrocode}
-\ProvidesPackage{amsmath}[2019/04/01 v2.17c AMS math features]
+\ProvidesPackage{amsmath}[2019/11/16 v2.17d AMS math features]
 %    \end{macrocode}
 %
 % \section{Catcode defenses}
@@ -1641,10 +1641,19 @@ Foreign command \@backslashchar#1;\MessageBreak
 %    By redefining \cs{set@mathaccent} we ensure that
 %    \cn{DeclareMathAccent} will define accent commands to run our
 %    \cs{mathaccentV} function instead of the primitive \cs{mathaccent}.
+% \changes{v2.17d}{2019/11/16}{Added \cs{MakeRobust} to match kernel
+%                              change (gh/216)}
 %    \begin{macrocode}
 \def\set@mathaccent#1#2#3#4{%
-  \xdef#2{\@nx\protect\@nx\mathaccentV
+%    \end{macrocode}
+%    Now that the redefinitions done inside amsmath of the basic accents
+%    are all robust  we can drop the \cs{protect} here.
+%    \begin{macrocode}
+  \xdef#2{%
+%    \@nx\protect
+    \@nx\mathaccentV
     {\@xp\@gobble\string#2}\hexnumber@#1#4}%
+  \MakeRobust#2%
 }
 %    \end{macrocode}
 %
@@ -1714,6 +1723,13 @@ Foreign command \@backslashchar#1;\MessageBreak
       Unable to redefine math accent \string#5}%
   \fi\fi}
 \def\@tempc#1"#2#3#4#5#6\@nil#7{%
+%    \end{macrocode}
+%    Drop the inner part of the robust accent so that it can be recreated
+%    without a warning.
+% \changes{v2.17d}{2019/11/16}{Make temporarily fragile to match kernel
+%                              change (gh/216)}
+%    \begin{macrocode}
+  \@xp\let\csname\@xp\@gobble\string#7\space\endcsname\@undefined
   \chardef\@tempd="#3\relax\set@mathaccent\@tempd{#7}{#2}{#4#5}}
 \def\@tempd#1\@nil#2{%
     \PackageWarningNoLine{amsmath}{%
@@ -2091,7 +2107,7 @@ Foreign command \@backslashchar#1;\MessageBreak
 %  \begin{macro}{\overunderset}
 %    This is the combination of the previous two commands which is
 %    something that is sometimes needed.
-% \changes{v2.17c}{FMi}{New command \cs{overunderset}}
+% \changes{v2.17c}{2019/04/01}{New command \cs{overunderset}}
 %    \begin{macrocode}
 \newcommand{\overunderset}[3]{\binrel@{#3}%
   \binrel@@{\mathop{\kern\z@#3}\limits^{#1}_{#2}}}
diff --git a/Master/texmf-dist/tex/latex/amsmath/amsmath.sty b/Master/texmf-dist/tex/latex/amsmath/amsmath.sty
index b07d783fcb7..0b8113127e7 100644
--- a/Master/texmf-dist/tex/latex/amsmath/amsmath.sty
+++ b/Master/texmf-dist/tex/latex/amsmath/amsmath.sty
@@ -27,7 +27,7 @@
 \providecommand\DeclareCurrentRelease[2]{}
 \DeclareRelease{}{2018-12-01}{amsmath-2018-12-01.sty}
 \DeclareCurrentRelease{}{2019-04-01}
-\ProvidesPackage{amsmath}[2019/04/01 v2.17c AMS math features]
+\ProvidesPackage{amsmath}[2019/11/16 v2.17d AMS math features]
 \edef\@temp{\catcode 96=\number\catcode 96 }
 \catcode\string `\`=12
 \def\do#1{\catcode\number`#1=\number\catcode`#1}
@@ -739,8 +739,10 @@ Foreign command \@backslashchar#1;\MessageBreak
   {\mathop{#1}\limits^{\vbox to-1.4\ex@{\kern-\tw@\ex@
    \hbox{\normalfont....}\vss}}}}
 \def\set@mathaccent#1#2#3#4{%
-  \xdef#2{\@nx\protect\@nx\mathaccentV
+  \xdef#2{%
+    \@nx\mathaccentV
     {\@xp\@gobble\string#2}\hexnumber@#1#4}%
+  \MakeRobust#2%
 }
 \def\@tempa#1{%
   \@ifundefined{\@xp\@gobble\string#1\space}%
@@ -759,6 +761,7 @@ Foreign command \@backslashchar#1;\MessageBreak
       Unable to redefine math accent \string#5}%
   \fi\fi}
 \def\@tempc#1"#2#3#4#5#6\@nil#7{%
+  \@xp\let\csname\@xp\@gobble\string#7\space\endcsname\@undefined
   \chardef\@tempd="#3\relax\set@mathaccent\@tempd{#7}{#2}{#4#5}}
 \def\@tempd#1\@nil#2{%
     \PackageWarningNoLine{amsmath}{%