tl-update-auto

git-svn-id: svn://tug.org/texlive/trunk@50307 c570f23f-e606-0410-a88d-b1316a301751

8 files changed, 302 insertions, 167 deletions

diff --git a/Build/source/build-aux/config.guess b/Build/source/build-aux/config.guess
index f05137db451..79d1317f52b 100755
--- a/Build/source/build-aux/config.guess
+++ b/Build/source/build-aux/config.guess
@@ -985,22 +985,50 @@ EOF
 	exit ;;
     mips:Linux:*:* | mips64:Linux:*:*)
 	set_cc_for_build
+	IS_GLIBC=0
+	test x"${LIBC}" = xgnu && IS_GLIBC=1
 	sed 's/^	//' << EOF > "$dummy.c"
 	#undef CPU
-	#undef ${UNAME_MACHINE}
-	#undef ${UNAME_MACHINE}el
+	#undef mips
+	#undef mipsel
+	#undef mips64
+	#undef mips64el
+	#if ${IS_GLIBC} && defined(_ABI64)
+	LIBCABI=gnuabi64
+	#else
+	#if ${IS_GLIBC} && defined(_ABIN32)
+	LIBCABI=gnuabin32
+	#else
+	LIBCABI=${LIBC}
+	#endif
+	#endif
+
+	#if ${IS_GLIBC} && defined(__mips64) && defined(__mips_isa_rev) && __mips_isa_rev>=6
+	CPU=mipsisa64r6
+	#else
+	#if ${IS_GLIBC} && !defined(__mips64) && defined(__mips_isa_rev) && __mips_isa_rev>=6
+	CPU=mipsisa32r6
+	#else
+	#if defined(__mips64)
+	CPU=mips64
+	#else
+	CPU=mips
+	#endif
+	#endif
+	#endif
+
 	#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
-	CPU=${UNAME_MACHINE}el
+	MIPS_ENDIAN=el
 	#else
 	#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
-	CPU=${UNAME_MACHINE}
+	MIPS_ENDIAN=
 	#else
-	CPU=
+	MIPS_ENDIAN=
 	#endif
 	#endif
 EOF
-	eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^CPU'`"
-	test "x$CPU" != x && { echo "$CPU-unknown-linux-$LIBC"; exit; }
+	eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^CPU\|^MIPS_ENDIAN\|^LIBCABI'`"
+	test "x$CPU" != x && { echo "$CPU${MIPS_ENDIAN}-unknown-linux-$LIBCABI"; exit; }
 	;;
     mips64el:Linux:*:*)
 	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
diff --git a/Build/source/build-aux/texinfo.tex b/Build/source/build-aux/texinfo.tex
index 192284cccc1..4e5ac293af5 100644
--- a/Build/source/build-aux/texinfo.tex
+++ b/Build/source/build-aux/texinfo.tex
@@ -3,7 +3,7 @@
 % Load plain if necessary, i.e., if running under initex.
 \expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi
 %
-\def\texinfoversion{2019-03-03.15}
+\def\texinfoversion{2019-03-07.19}
 
 %
 % Copyright 1985, 1986, 1988, 1990-2019 Free Software Foundation, Inc.
@@ -388,13 +388,7 @@
     % before the \shipout runs.
     %
     \indexdummies         % don't expand commands in the output.
-    \normalturnoffactive  % \ in index entries must not stay \, e.g., if
-               % the page break happens to be in the middle of an example.
-               % We don't want .vr (or whatever) entries like this:
-               % \entry{{\indexbackslash }acronym}{32}{\code {\acronym}}
-               % "\acronym" won't work when it's read back in;
-               % it needs to be
-               % {\code {{\backslashcurfont }acronym}
+    \turnoffactive
     \shipout\vbox{%
       % Do this early so pdf references go to the beginning of the page.
       \ifpdfmakepagedest \pdfdest name{\the\pageno} xyz\fi
@@ -4862,7 +4856,6 @@ end
 % expansion of Texinfo commands that can appear in an index entry.
 %
 \def\indexdummies{%
-  \escapechar = `\\     % use backslash in output files.
   \definedummyletter\@%
   \definedummyletter\ %
   %
@@ -4872,6 +4865,7 @@ end
   %
   % Do the redefinitions.
   \definedummies
+  \otherbackslash
 }
 
 % Used for the aux and toc files, where @ is the escape character.
@@ -5070,11 +5064,9 @@ end
   \commondummyword\xref
 }
 
-% This does nothing, but for a time it was recommended to use
-% \usebracesinindexestrue to be able to use braces in index entries.
-
 \let\indexlbrace\relax
 \let\indexrbrace\relax
+\let\indexatchar\relax
 
 {\catcode`\@=0
 \catcode`\\=13
@@ -5108,10 +5100,8 @@ end
   }
 
   \gdef\indexnonalnumreappear{%
-    \useindexbackslash
     \let-\normaldash
     \let<\normalless
-    \def\@{@}%
   }
 }
 
@@ -5255,13 +5245,6 @@ end
 \fi}
 \def\indexisfl{fl}
 
-% Output \ as {\indexbackslash}, because \ is an escape character in
-% the index files.
-\let\indexbackslash=\relax
-{\catcode`\@=0 \catcode`\\=\active
-  @gdef@useindexbackslash{@def\{{@indexbackslash}}}
-}
-
 % Definition for writing index entry sort key.
 {
 \catcode`\-=13
@@ -5308,6 +5291,8 @@ end
       \def\rbracechar{{\indexrbrace}}%
       \let\{=\lbracechar
       \let\}=\rbracechar
+      \def\@{{\indexatchar}}%
+      \def\atchar##1{\@}%
       %
       \let\indexsortkey\empty
       % Execute the segment and throw away the typeset output.  This executes
@@ -5345,8 +5330,6 @@ end
   %
   % Remember, we are within a group.
   \indexdummies % Must do this here, since \bf, etc expand at this stage
-  \useindexbackslash % \indexbackslash isn't defined now so it will be output 
-                     % as is; and it will print as backslash.
   %
   % Split the entry into primary entry and any subentries, and get the index 
   % sort key.
@@ -5479,14 +5462,10 @@ end
   \plainfrenchspacing
   \everypar = {}% don't want the \kern\-parindent from indentation suppression.
   %
-  % See if the index file exists and is nonempty.
-  % Change catcode of @ here so that if the index file contains
-  % \initial {@}
-  % as its first line, TeX doesn't complain about mismatched braces
-  % (because it thinks @} is a control sequence).
-  \catcode`\@ = 12
   % See comment in \requireopenindexfile.
   \def\indexname{#1}\ifx\indexname\indexisfl\def\indexname{f1}\fi
+  %
+  % See if the index file exists and is nonempty.
   \openin 1 \jobname.\indexname s
   \ifeof 1
     % \enddoublecolumns gets confused if there is no text in the index,
@@ -5496,8 +5475,6 @@ end
     \putwordIndexNonexistent
     \typeout{No file \jobname.\indexname s.}%
   \else
-    \catcode`\\ = 0
-    %
     % If the index file exists but is empty, then \openin leaves \ifeof
     % false.  We have to make TeX try to read something from the file, so
     % it can discover if there is anything in it.
@@ -5505,29 +5482,7 @@ end
     \ifeof 1
       \putwordIndexIsEmpty
     \else
-      % Index files are almost Texinfo source, but we use \ as the escape
-      % character.  It would be better to use @, but that's too big a change
-      % to make right now.
-      \def\indexbackslash{\ttbackslash}%
-      \let\indexlbrace\{   % Likewise, set these sequences for braces
-      \let\indexrbrace\}   % used in the sort key.
-      \begindoublecolumns
-      \let\dotheinsertentrybox\dotheinsertentryboxwithpenalty
-      %
-      % Read input from the index file line by line.
-      \loopdo
-        \ifeof1 \else
-          \read 1 to \nextline
-        \fi
-        %
-        \indexinputprocessing
-        \thisline
-        %
-        \ifeof1\else
-        \let\thisline\nextline
-      \repeat
-      %%
-      \enddoublecolumns
+      \expandafter\printindexzz\thisline\relax\relax\finish%
     \fi
   \fi
   \closein 1
@@ -5535,6 +5490,40 @@ end
 \def\loopdo#1\repeat{\def\body{#1}\loopdoxxx}
 \def\loopdoxxx{\let\next=\relax\body\let\next=\loopdoxxx\fi\next}
 
+% If the index file starts with a backslash, forgo reading the index
+% file altogether.  If somebody upgrades texinfo.tex they may still have
+% old index files using \ as the escape character.  Reading this would
+% at best lead to typesetting garbage, at worst a TeX syntax error.
+\def\printindexzz#1#2\finish{%
+  % NB this won't work if the index file starts with a group...
+  \uccode`\~=`\\ \uppercase{\if\noexpand~}\noexpand#1
+    \message{skipping sorted index file}%
+    (Skipped sorted index file in obsolete format)
+  \else
+    \printindexzzz
+  \fi
+}
+
+\def\printindexzzz{%
+   \begindoublecolumns
+   \let\dotheinsertentrybox\dotheinsertentryboxwithpenalty
+   %
+   % Read input from the index file line by line.
+   \loopdo
+     \ifeof1 \else
+       \read 1 to \nextline
+     \fi
+     %
+     \indexinputprocessing
+     \thisline
+     %
+     \ifeof1\else
+     \let\thisline\nextline
+   \repeat
+   %%
+   \enddoublecolumns
+}
+
 \def\indexinputprocessing{%
   \ifeof1
     \let\firsttoken\relax
@@ -5554,12 +5543,18 @@ end
 \catcode`\|=13 \catcode`\<=13 \catcode`\>=13 \catcode`\+=13 \catcode`\"=13
 \catcode`\$=3
 \gdef\initialglyphs{%
+  % special control sequences used in the index sort key
+  \let\indexlbrace\{%
+  \let\indexrbrace\}%
+  \let\indexatchar\@%
+  %
   % Some changes for non-alphabetic characters.  Using the glyphs from the
   % math fonts looks more consistent than the typewriter font used elsewhere
   % for these characters.
-  \def\indexbackslash{\math{\backslash}}%
-  \let\\=\indexbackslash
+  \uccode`\~=`\\ \uppercase{\def~{\math{\backslash}}}
   %
+  % In case @\ is used for backslash
+  \uppercase{\let\\=~}
   % Can't get bold backslash so don't use bold forward slash
   \catcode`\/=13
   \def/{{\secrmnotbold \normalslash}}%
diff --git a/Build/source/libs/freetype2/freetype-src/builds/unix/config.guess b/Build/source/libs/freetype2/freetype-src/builds/unix/config.guess
index f05137db451..79d1317f52b 100755
--- a/Build/source/libs/freetype2/freetype-src/builds/unix/config.guess
+++ b/Build/source/libs/freetype2/freetype-src/builds/unix/config.guess
@@ -985,22 +985,50 @@ EOF
 	exit ;;
     mips:Linux:*:* | mips64:Linux:*:*)
 	set_cc_for_build
+	IS_GLIBC=0
+	test x"${LIBC}" = xgnu && IS_GLIBC=1
 	sed 's/^	//' << EOF > "$dummy.c"
 	#undef CPU
-	#undef ${UNAME_MACHINE}
-	#undef ${UNAME_MACHINE}el
+	#undef mips
+	#undef mipsel
+	#undef mips64
+	#undef mips64el
+	#if ${IS_GLIBC} && defined(_ABI64)
+	LIBCABI=gnuabi64
+	#else
+	#if ${IS_GLIBC} && defined(_ABIN32)
+	LIBCABI=gnuabin32
+	#else
+	LIBCABI=${LIBC}
+	#endif
+	#endif
+
+	#if ${IS_GLIBC} && defined(__mips64) && defined(__mips_isa_rev) && __mips_isa_rev>=6
+	CPU=mipsisa64r6
+	#else
+	#if ${IS_GLIBC} && !defined(__mips64) && defined(__mips_isa_rev) && __mips_isa_rev>=6
+	CPU=mipsisa32r6
+	#else
+	#if defined(__mips64)
+	CPU=mips64
+	#else
+	CPU=mips
+	#endif
+	#endif
+	#endif
+
 	#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
-	CPU=${UNAME_MACHINE}el
+	MIPS_ENDIAN=el
 	#else
 	#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
-	CPU=${UNAME_MACHINE}
+	MIPS_ENDIAN=
 	#else
-	CPU=
+	MIPS_ENDIAN=
 	#endif
 	#endif
 EOF
-	eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^CPU'`"
-	test "x$CPU" != x && { echo "$CPU-unknown-linux-$LIBC"; exit; }
+	eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^CPU\|^MIPS_ENDIAN\|^LIBCABI'`"
+	test "x$CPU" != x && { echo "$CPU${MIPS_ENDIAN}-unknown-linux-$LIBCABI"; exit; }
 	;;
     mips64el:Linux:*:*)
 	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
diff --git a/Build/source/libs/icu/icu-src/source/config.guess b/Build/source/libs/icu/icu-src/source/config.guess
index f05137db451..79d1317f52b 100755
--- a/Build/source/libs/icu/icu-src/source/config.guess
+++ b/Build/source/libs/icu/icu-src/source/config.guess
@@ -985,22 +985,50 @@ EOF
 	exit ;;
     mips:Linux:*:* | mips64:Linux:*:*)
 	set_cc_for_build
+	IS_GLIBC=0
+	test x"${LIBC}" = xgnu && IS_GLIBC=1
 	sed 's/^	//' << EOF > "$dummy.c"
 	#undef CPU
-	#undef ${UNAME_MACHINE}
-	#undef ${UNAME_MACHINE}el
+	#undef mips
+	#undef mipsel
+	#undef mips64
+	#undef mips64el
+	#if ${IS_GLIBC} && defined(_ABI64)
+	LIBCABI=gnuabi64
+	#else
+	#if ${IS_GLIBC} && defined(_ABIN32)
+	LIBCABI=gnuabin32
+	#else
+	LIBCABI=${LIBC}
+	#endif
+	#endif
+
+	#if ${IS_GLIBC} && defined(__mips64) && defined(__mips_isa_rev) && __mips_isa_rev>=6
+	CPU=mipsisa64r6
+	#else
+	#if ${IS_GLIBC} && !defined(__mips64) && defined(__mips_isa_rev) && __mips_isa_rev>=6
+	CPU=mipsisa32r6
+	#else
+	#if defined(__mips64)
+	CPU=mips64
+	#else
+	CPU=mips
+	#endif
+	#endif
+	#endif
+
 	#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
-	CPU=${UNAME_MACHINE}el
+	MIPS_ENDIAN=el
 	#else
 	#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
-	CPU=${UNAME_MACHINE}
+	MIPS_ENDIAN=
 	#else
-	CPU=
+	MIPS_ENDIAN=
 	#endif
 	#endif
 EOF
-	eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^CPU'`"
-	test "x$CPU" != x && { echo "$CPU-unknown-linux-$LIBC"; exit; }
+	eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^CPU\|^MIPS_ENDIAN\|^LIBCABI'`"
+	test "x$CPU" != x && { echo "$CPU${MIPS_ENDIAN}-unknown-linux-$LIBCABI"; exit; }
 	;;
     mips64el:Linux:*:*)
 	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
diff --git a/Build/source/utils/asymptote/config.guess b/Build/source/utils/asymptote/config.guess
index f05137db451..79d1317f52b 100755
--- a/Build/source/utils/asymptote/config.guess
+++ b/Build/source/utils/asymptote/config.guess
@@ -985,22 +985,50 @@ EOF
 	exit ;;
     mips:Linux:*:* | mips64:Linux:*:*)
 	set_cc_for_build
+	IS_GLIBC=0
+	test x"${LIBC}" = xgnu && IS_GLIBC=1
 	sed 's/^	//' << EOF > "$dummy.c"
 	#undef CPU
-	#undef ${UNAME_MACHINE}
-	#undef ${UNAME_MACHINE}el
+	#undef mips
+	#undef mipsel
+	#undef mips64
+	#undef mips64el
+	#if ${IS_GLIBC} && defined(_ABI64)
+	LIBCABI=gnuabi64
+	#else
+	#if ${IS_GLIBC} && defined(_ABIN32)
+	LIBCABI=gnuabin32
+	#else
+	LIBCABI=${LIBC}
+	#endif
+	#endif
+
+	#if ${IS_GLIBC} && defined(__mips64) && defined(__mips_isa_rev) && __mips_isa_rev>=6
+	CPU=mipsisa64r6
+	#else
+	#if ${IS_GLIBC} && !defined(__mips64) && defined(__mips_isa_rev) && __mips_isa_rev>=6
+	CPU=mipsisa32r6
+	#else
+	#if defined(__mips64)
+	CPU=mips64
+	#else
+	CPU=mips
+	#endif
+	#endif
+	#endif
+
 	#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
-	CPU=${UNAME_MACHINE}el
+	MIPS_ENDIAN=el
 	#else
 	#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
-	CPU=${UNAME_MACHINE}
+	MIPS_ENDIAN=
 	#else
-	CPU=
+	MIPS_ENDIAN=
 	#endif
 	#endif
 EOF
-	eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^CPU'`"
-	test "x$CPU" != x && { echo "$CPU-unknown-linux-$LIBC"; exit; }
+	eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^CPU\|^MIPS_ENDIAN\|^LIBCABI'`"
+	test "x$CPU" != x && { echo "$CPU${MIPS_ENDIAN}-unknown-linux-$LIBCABI"; exit; }
 	;;
     mips64el:Linux:*:*)
 	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
diff --git a/Master/doc.html b/Master/doc.html
index 250a9597864..9dd09e47f04 100644
--- a/Master/doc.html
+++ b/Master/doc.html
@@ -6432,6 +6432,11 @@ Computer Science thesis class for University of Dortmund
 <a href="texmf-dist/doc/latex/fbithesis/fbithesis.pdf">fbithesis.pdf</a>.
 </small></li>
 
+<li><b><a href="texmf-dist/doc/latex/fbox">fbox</a></b>:<small>
+Extended \fbox macro from standard LaTeX
+<a href="texmf-dist/doc/latex/fbox/fbox.pdf">fbox.pdf</a>.
+</small></li>
+
 <li><b><a href="texmf-dist/doc/latex/fcavtex/examples">fcavtex</a></b>:<small>
 A thesis class for the FCAV/UNESP (Brazil)
 <a href="texmf-dist/doc/latex/fcavtex/examples/basico-principal.pdf">basico-principal.pdf</a>,
@@ -7225,7 +7230,7 @@ Get first and last words of a page
 
 <h2 id="letter-G">G</h2>
 
-<ol start="1127">
+<ol start="1128">
 
 <li><b><a href="texmf-dist/doc/latex/g-brief">g-brief</a></b>:<small>
 Letter document class
@@ -8034,7 +8039,7 @@ Bundle of classes for "La Gazette des Mathematiciens"
 
 <h2 id="letter-H">H</h2>
 
-<ol start="1246">
+<ol start="1247">
 
 <li><b><a href="texmf-dist/doc/latex/h2020proposal/manual">h2020proposal</a></b>:<small>
 LaTeX class and template for EU H2020 RIA proposal
@@ -8404,7 +8409,7 @@ Basic support for multiple languages in Plain TeX
 
 <h2 id="letter-I">I</h2>
 
-<ol start="1305">
+<ol start="1306">
 
 <li><b><a href="texmf-dist/doc/latex/ibycus-babel">ibycus-babel</a></b>:<small>
 Use the Ibycus 4 Greek font with Babel
@@ -8837,7 +8842,7 @@ A two-element sans-serif font
 
 <h2 id="letter-J">J</h2>
 
-<ol start="1378">
+<ol start="1379">
 
 <li><b><a href="texmf-dist/doc/fonts/jablantile">jablantile</a></b>:<small>
 Metafont version of tiles in the style of Slavik Jablan
@@ -9005,7 +9010,7 @@ A replacement for LaTeX's verbatim package
 
 <h2 id="letter-K">K</h2>
 
-<ol start="1400">
+<ol start="1401">
 
 <li><b><a href="texmf-dist/doc/latex/kalendarium">kalendarium</a></b>:<small>
 Print dates according to the classical Latin calendar
@@ -9432,7 +9437,7 @@ Create Karnaugh maps with LaTeX
 
 <h2 id="letter-L">L</h2>
 
-<ol start="1438">
+<ol start="1439">
 
 <li><b><a href="texmf-dist/doc/latex/l2picfaq">l2picfaq</a></b>:<small>
 LaTeX pictures "how-to" (German)
@@ -10876,7 +10881,7 @@ Commands to include lilypond scores within a (Lua)LaTeX document
 
 <h2 id="letter-M">M</h2>
 
-<ol start="1648">
+<ol start="1649">
 
 <li><b><a href="texmf-dist/doc/generic/m-tx">m-tx</a></b>:<small>
 A preprocessor for pmx
@@ -12133,7 +12138,7 @@ XeLaTeX template for writing the main body of NSFC proposals
 
 <h2 id="letter-N">N</h2>
 
-<ol start="1851">
+<ol start="1852">
 
 <li><b><a href="texmf-dist/doc/xelatex/na-box">na-box</a></b>:<small>
 Arabic-aware version of pas-cours package
@@ -12612,7 +12617,7 @@ Support for the journal "North-Western European Journal of Mathematics"
 
 <h2 id="letter-O">O</h2>
 
-<ol start="1927">
+<ol start="1928">
 
 <li><b><a href="texmf-dist/doc/latex/oberdiek">oberdiek</a></b>:<small>
 A bundle of packages submitted by Heiko Oberdiek
@@ -12938,7 +12943,7 @@ Combine LaTeX commands over included graphics
 
 <h2 id="letter-P">P</h2>
 
-<ol start="1966">
+<ol start="1967">
 
 <li><b><a href="texmf-dist/doc/latex/padcount">padcount</a></b>:<small>
 Pad numbers with arbitrary characters
@@ -14815,7 +14820,7 @@ Run Python from within a document, typesetting the results
 
 <h2 id="letter-Q">Q</h2>
 
-<ol start="2264">
+<ol start="2265">
 
 <li><b><a href="texmf-dist/doc/latex/qcircuit">qcircuit</a></b>:<small>
 Macros to generate quantum ciruits
@@ -14901,7 +14906,7 @@ German translations to the quran package
 
 <h2 id="letter-R">R</h2>
 
-<ol start="2278">
+<ol start="2279">
 
 <li><b><a href="texmf-dist/doc/latex/raleway">raleway</a></b>:<small>
 Use Raleway with TeX(-alike) systems
@@ -15374,7 +15379,7 @@ Class for Ryerson Unversity Graduate School requirements
 
 <h2 id="letter-S">S</h2>
 
-<ol start="2349">
+<ol start="2350">
 
 <li><b><a href="texmf-dist/doc/latex/sa-tikz">sa-tikz</a></b>:<small>
 TikZ library to draw switching architectures
@@ -16726,7 +16731,7 @@ Format systems of equations
 
 <h2 id="letter-T">T</h2>
 
-<ol start="2563">
+<ol start="2564">
 
 <li><b><a href="texmf-dist/doc/latex/t-angles">t-angles</a></b>:<small>
 Draw tangles, trees, Hopf algebra operations and other pictures
@@ -18562,7 +18567,7 @@ Print a typographic grid
 
 <h2 id="letter-U">U</h2>
 
-<ol start="2814">
+<ol start="2815">
 
 <li><b><a href="texmf-dist/doc/latex/uaclasses">uaclasses</a></b>:<small>
 University of Arizona thesis and dissertation format
@@ -18929,7 +18934,7 @@ University of Washington thesis class
 
 <h2 id="letter-V">V</h2>
 
-<ol start="2875">
+<ol start="2876">
 
 <li><b><a href="texmf-dist/doc/bibtex/vancouver">vancouver</a></b>:<small>
 Bibliographic style file for Biomedical Journals
@@ -19133,7 +19138,7 @@ Variable-width multiple text columns
 
 <h2 id="letter-W">W</h2>
 
-<ol start="2909">
+<ol start="2910">
 
 <li><b><a href="texmf-dist/doc/fonts/wadalab">wadalab</a></b>:<small>
 Wadalab (Japanese) font packages
@@ -19303,7 +19308,7 @@ Extend LaTeX's cross-reference system
 
 <h2 id="letter-X">X</h2>
 
-<ol start="2931">
+<ol start="2932">
 
 <li><b><a href="texmf-dist/doc/latex/xargs">xargs</a></b>:<small>
 Define commands with many optional arguments
@@ -19766,7 +19771,7 @@ Tree macros using XY-Pic
 
 <h2 id="letter-Y">Y</h2>
 
-<ol start="2994">
+<ol start="2995">
 
 <li><b><a href="texmf-dist/doc/latex/yafoot">yafoot</a></b>:<small>
 A bundle of miscellaneous footnote packages
@@ -19835,7 +19840,7 @@ Many-featured Young tableaux and Young diagrams
 
 <h2 id="letter-Z">Z</h2>
 
-<ol start="3005">
+<ol start="3006">
 
 <li><b><a href="texmf-dist/doc/latex/zed-csp">zed-csp</a></b>:<small>
 Typesetting Z and CSP format specifications
diff --git a/Master/texmf-dist/tex/texinfo/texinfo.tex b/Master/texmf-dist/tex/texinfo/texinfo.tex
index 192284cccc1..4e5ac293af5 100644
--- a/Master/texmf-dist/tex/texinfo/texinfo.tex
+++ b/Master/texmf-dist/tex/texinfo/texinfo.tex
@@ -3,7 +3,7 @@
 % Load plain if necessary, i.e., if running under initex.
 \expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi
 %
-\def\texinfoversion{2019-03-03.15}
+\def\texinfoversion{2019-03-07.19}
 
 %
 % Copyright 1985, 1986, 1988, 1990-2019 Free Software Foundation, Inc.
@@ -388,13 +388,7 @@
     % before the \shipout runs.
     %
     \indexdummies         % don't expand commands in the output.
-    \normalturnoffactive  % \ in index entries must not stay \, e.g., if
-               % the page break happens to be in the middle of an example.
-               % We don't want .vr (or whatever) entries like this:
-               % \entry{{\indexbackslash }acronym}{32}{\code {\acronym}}
-               % "\acronym" won't work when it's read back in;
-               % it needs to be
-               % {\code {{\backslashcurfont }acronym}
+    \turnoffactive
     \shipout\vbox{%
       % Do this early so pdf references go to the beginning of the page.
       \ifpdfmakepagedest \pdfdest name{\the\pageno} xyz\fi
@@ -4862,7 +4856,6 @@ end
 % expansion of Texinfo commands that can appear in an index entry.
 %
 \def\indexdummies{%
-  \escapechar = `\\     % use backslash in output files.
   \definedummyletter\@%
   \definedummyletter\ %
   %
@@ -4872,6 +4865,7 @@ end
   %
   % Do the redefinitions.
   \definedummies
+  \otherbackslash
 }
 
 % Used for the aux and toc files, where @ is the escape character.
@@ -5070,11 +5064,9 @@ end
   \commondummyword\xref
 }
 
-% This does nothing, but for a time it was recommended to use
-% \usebracesinindexestrue to be able to use braces in index entries.
-
 \let\indexlbrace\relax
 \let\indexrbrace\relax
+\let\indexatchar\relax
 
 {\catcode`\@=0
 \catcode`\\=13
@@ -5108,10 +5100,8 @@ end
   }
 
   \gdef\indexnonalnumreappear{%
-    \useindexbackslash
     \let-\normaldash
     \let<\normalless
-    \def\@{@}%
   }
 }
 
@@ -5255,13 +5245,6 @@ end
 \fi}
 \def\indexisfl{fl}
 
-% Output \ as {\indexbackslash}, because \ is an escape character in
-% the index files.
-\let\indexbackslash=\relax
-{\catcode`\@=0 \catcode`\\=\active
-  @gdef@useindexbackslash{@def\{{@indexbackslash}}}
-}
-
 % Definition for writing index entry sort key.
 {
 \catcode`\-=13
@@ -5308,6 +5291,8 @@ end
       \def\rbracechar{{\indexrbrace}}%
       \let\{=\lbracechar
       \let\}=\rbracechar
+      \def\@{{\indexatchar}}%
+      \def\atchar##1{\@}%
       %
       \let\indexsortkey\empty
       % Execute the segment and throw away the typeset output.  This executes
@@ -5345,8 +5330,6 @@ end
   %
   % Remember, we are within a group.
   \indexdummies % Must do this here, since \bf, etc expand at this stage
-  \useindexbackslash % \indexbackslash isn't defined now so it will be output 
-                     % as is; and it will print as backslash.
   %
   % Split the entry into primary entry and any subentries, and get the index 
   % sort key.
@@ -5479,14 +5462,10 @@ end
   \plainfrenchspacing
   \everypar = {}% don't want the \kern\-parindent from indentation suppression.
   %
-  % See if the index file exists and is nonempty.
-  % Change catcode of @ here so that if the index file contains
-  % \initial {@}
-  % as its first line, TeX doesn't complain about mismatched braces
-  % (because it thinks @} is a control sequence).
-  \catcode`\@ = 12
   % See comment in \requireopenindexfile.
   \def\indexname{#1}\ifx\indexname\indexisfl\def\indexname{f1}\fi
+  %
+  % See if the index file exists and is nonempty.
   \openin 1 \jobname.\indexname s
   \ifeof 1
     % \enddoublecolumns gets confused if there is no text in the index,
@@ -5496,8 +5475,6 @@ end
     \putwordIndexNonexistent
     \typeout{No file \jobname.\indexname s.}%
   \else
-    \catcode`\\ = 0
-    %
     % If the index file exists but is empty, then \openin leaves \ifeof
     % false.  We have to make TeX try to read something from the file, so
     % it can discover if there is anything in it.
@@ -5505,29 +5482,7 @@ end
     \ifeof 1
       \putwordIndexIsEmpty
     \else
-      % Index files are almost Texinfo source, but we use \ as the escape
-      % character.  It would be better to use @, but that's too big a change
-      % to make right now.
-      \def\indexbackslash{\ttbackslash}%
-      \let\indexlbrace\{   % Likewise, set these sequences for braces
-      \let\indexrbrace\}   % used in the sort key.
-      \begindoublecolumns
-      \let\dotheinsertentrybox\dotheinsertentryboxwithpenalty
-      %
-      % Read input from the index file line by line.
-      \loopdo
-        \ifeof1 \else
-          \read 1 to \nextline
-        \fi
-        %
-        \indexinputprocessing
-        \thisline
-        %
-        \ifeof1\else
-        \let\thisline\nextline
-      \repeat
-      %%
-      \enddoublecolumns
+      \expandafter\printindexzz\thisline\relax\relax\finish%
     \fi
   \fi
   \closein 1
@@ -5535,6 +5490,40 @@ end
 \def\loopdo#1\repeat{\def\body{#1}\loopdoxxx}
 \def\loopdoxxx{\let\next=\relax\body\let\next=\loopdoxxx\fi\next}
 
+% If the index file starts with a backslash, forgo reading the index
+% file altogether.  If somebody upgrades texinfo.tex they may still have
+% old index files using \ as the escape character.  Reading this would
+% at best lead to typesetting garbage, at worst a TeX syntax error.
+\def\printindexzz#1#2\finish{%
+  % NB this won't work if the index file starts with a group...
+  \uccode`\~=`\\ \uppercase{\if\noexpand~}\noexpand#1
+    \message{skipping sorted index file}%
+    (Skipped sorted index file in obsolete format)
+  \else
+    \printindexzzz
+  \fi
+}
+
+\def\printindexzzz{%
+   \begindoublecolumns
+   \let\dotheinsertentrybox\dotheinsertentryboxwithpenalty
+   %
+   % Read input from the index file line by line.
+   \loopdo
+     \ifeof1 \else
+       \read 1 to \nextline
+     \fi
+     %
+     \indexinputprocessing
+     \thisline
+     %
+     \ifeof1\else
+     \let\thisline\nextline
+   \repeat
+   %%
+   \enddoublecolumns
+}
+
 \def\indexinputprocessing{%
   \ifeof1
     \let\firsttoken\relax
@@ -5554,12 +5543,18 @@ end
 \catcode`\|=13 \catcode`\<=13 \catcode`\>=13 \catcode`\+=13 \catcode`\"=13
 \catcode`\$=3
 \gdef\initialglyphs{%
+  % special control sequences used in the index sort key
+  \let\indexlbrace\{%
+  \let\indexrbrace\}%
+  \let\indexatchar\@%
+  %
   % Some changes for non-alphabetic characters.  Using the glyphs from the
   % math fonts looks more consistent than the typewriter font used elsewhere
   % for these characters.
-  \def\indexbackslash{\math{\backslash}}%
-  \let\\=\indexbackslash
+  \uccode`\~=`\\ \uppercase{\def~{\math{\backslash}}}
   %
+  % In case @\ is used for backslash
+  \uppercase{\let\\=~}
   % Can't get bold backslash so don't use bold forward slash
   \catcode`\/=13
   \def/{{\secrmnotbold \normalslash}}%
diff --git a/Master/tlpkg/installer/config.guess b/Master/tlpkg/installer/config.guess
index f05137db451..79d1317f52b 100755
--- a/Master/tlpkg/installer/config.guess
+++ b/Master/tlpkg/installer/config.guess
@@ -985,22 +985,50 @@ EOF
 	exit ;;
     mips:Linux:*:* | mips64:Linux:*:*)
 	set_cc_for_build
+	IS_GLIBC=0
+	test x"${LIBC}" = xgnu && IS_GLIBC=1
 	sed 's/^	//' << EOF > "$dummy.c"
 	#undef CPU
-	#undef ${UNAME_MACHINE}
-	#undef ${UNAME_MACHINE}el
+	#undef mips
+	#undef mipsel
+	#undef mips64
+	#undef mips64el
+	#if ${IS_GLIBC} && defined(_ABI64)
+	LIBCABI=gnuabi64
+	#else
+	#if ${IS_GLIBC} && defined(_ABIN32)
+	LIBCABI=gnuabin32
+	#else
+	LIBCABI=${LIBC}
+	#endif
+	#endif
+
+	#if ${IS_GLIBC} && defined(__mips64) && defined(__mips_isa_rev) && __mips_isa_rev>=6
+	CPU=mipsisa64r6
+	#else
+	#if ${IS_GLIBC} && !defined(__mips64) && defined(__mips_isa_rev) && __mips_isa_rev>=6
+	CPU=mipsisa32r6
+	#else
+	#if defined(__mips64)
+	CPU=mips64
+	#else
+	CPU=mips
+	#endif
+	#endif
+	#endif
+
 	#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
-	CPU=${UNAME_MACHINE}el
+	MIPS_ENDIAN=el
 	#else
 	#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
-	CPU=${UNAME_MACHINE}
+	MIPS_ENDIAN=
 	#else
-	CPU=
+	MIPS_ENDIAN=
 	#endif
 	#endif
 EOF
-	eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^CPU'`"
-	test "x$CPU" != x && { echo "$CPU-unknown-linux-$LIBC"; exit; }
+	eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^CPU\|^MIPS_ENDIAN\|^LIBCABI'`"
+	test "x$CPU" != x && { echo "$CPU${MIPS_ENDIAN}-unknown-linux-$LIBCABI"; exit; }
 	;;
     mips64el:Linux:*:*)
 	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"