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diff --git a/macros/latex/contrib/mweights/README b/macros/latex/contrib/mweights/README
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+This is the README for the mweights package, version
+2017-03-30.
+
+Many font families available for use with LaTeX have multiple
+weights, especially when originally aimed at use on the web. For
+example, Linux Libertine has both bold and semibold; Cabin, a
+sans-serif family, has four weights (regular, medium, semibold,
+bold); SourceCodePro, a monospaced family, has seven weights.
+
+Traditionally the type1-oriented support packages for such fonts
+re-define the standard \mddefault or \bfdefault macros. But this can
+create difficulties if the weight desired for one font family isn't
+available for another font family, or if it differs from the weight
+desired for another font family. For example, there is no medium
+weight font for Linux Libertine so that setting \mddefault to mb for
+use with Cabin will be problematic for Libertine. And \bfdefault
+cannot be both sb for use with Cabin and b for use with Libertine,
+or vice versa.
+
+This package provides a solution to these difficulties. The basic
+idea (due to Michael Sharpe) is that font packages should *not*
+re-define \mddefault or \bfdefault; instead they should define as
+many of the following macros as is appropriate:
+
+\mdseries@rm
+\mdseries@sf
+\mdseries@tt
+
+\bfseries@rm
+\bfseries@sf
+\bfseries@tt
+
+For example, 
+
+\def\mdseries@sf{mb}
+\def\bfseries@sf{b}
+
+would be appropriate definitions for using a sans font such as Cabin 
+with medium and bold, and
+
+\def\bfseries@rm{sb}
+
+would be appropriate for using a Roman font such as Libertine
+with semibold. These macros should always be fully expanded; if
+necessary, \edef should be used.
+
+The package re-defines standard selection commands for series
+(\mdseries and \bfseries) and family (\rmfamily, \sffamily,
+\ttfamily) to use the macros. It should be a RequiredPackage (for
+type1 font use only) in any such font package.
+
+The package is licensed under the terms of the LaTeX Project Public
+License. The maintainer is Bob Tennent (rdt at cs.queensu.ca).  
diff --git a/macros/latex/contrib/mweights/mweights.sty b/macros/latex/contrib/mweights/mweights.sty
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+\ProvidesPackage{mweights}
+  [2017/03/30 (Bob Tennent)  Support package for multiple-weight font packages. ]
+
+\def\mweights@init{%
+% Define any undefined \mdseries@rm etc. 
+% Defined \mdseries@rm etc. assumed to be fully expanded!
+\ifdefined\mdseries@rm\else\edef\mdseries@rm{\mddefault}\fi
+\ifdefined\bfseries@rm\else\edef\bfseries@rm{\bfdefault}\fi
+\ifdefined\mdseries@sf\else\edef\mdseries@sf{\mddefault}\fi
+\ifdefined\bfseries@sf\else\edef\bfseries@sf{\bfdefault}\fi
+\ifdefined\mdseries@tt\else\edef\mdseries@tt{\mddefault}\fi
+\ifdefined\bfseries@tt\else\edef\bfseries@tt{\bfdefault}\fi
+% In case any unexpanded macros present in \rmdefault, etc
+\edef\rmdef@ult{\rmdefault}%
+\edef\sfdef@ult{\sfdefault}%
+\edef\ttdef@ult{\ttdefault}%
+\edef\bfdef@ult{\bfdefault}%
+\edef\mddef@ult{\mddefault}%
+\edef\famdef@ult{\familydefault}%
+}
+
+\DeclareRobustCommand\bfseries{%
+\mweights@init
+\not@math@alphabet\bfseries\mathbf
+\ifx\f@family\rmdef@ult\fontseries\bfseries@rm
+\else\ifx\f@family\sfdef@ult\fontseries\bfseries@sf
+\else\ifx\f@family\ttdef@ult\fontseries\bfseries@tt
+\else\fontseries\bfdefault\fi\fi\fi\selectfont}%
+
+\DeclareRobustCommand\mdseries{%
+\mweights@init
+\not@math@alphabet\mdseries\relax
+\ifx\f@family\rmdef@ult\fontseries\mdseries@rm
+\else\ifx\f@family\sfdef@ult\fontseries\mdseries@sf
+\else\ifx\f@family\ttdef@ult\fontseries\mdseries@tt
+\else\fontseries\mddefault\fi\fi\fi\selectfont}
+
+\DeclareRobustCommand\rmfamily{%
+\mweights@init
+\not@math@alphabet\rmfamily\mathrm
+% change the current series before changing the family
+\ifx\f@family\sfdef@ult
+    \ifx\f@series\mdseries@sf\fontseries\mdseries@rm
+    \else\ifx\f@series\bfseries@sf\fontseries\bfseries@rm
+    \else\ifx\f@series\mddef@ult\fontseries\mdseries@rm
+    \else\ifx\f@series\bfdef@ult\fontseries\bfseries@rm
+    \else\fontseries\mdseries@rm
+    \fi\fi\fi\fi
+\else\ifx\f@family\ttdef@ult
+    \ifx\f@series\mdseries@tt\fontseries\mdseries@rm
+    \else\ifx\f@series\bfseries@tt\fontseries\bfseries@rm
+    \else\ifx\f@series\mddef@ult\fontseries\mdseries@rm
+    \else\ifx\f@series\bfdef@ult\fontseries\bfseries@rm
+    \else\fontseries\mdseries@rm
+    \fi\fi\fi\fi
+\else\ifx\f@family\rmdef@ult
+    \ifx\f@series\mdseries@rm\fontseries\mdseries@rm
+    \else\ifx\f@series\bfseries@rm\fontseries\bfseries@rm
+    \else\ifx\f@series\mddef@ult\fontseries\mdseries@rm
+    \else\ifx\f@series\bfdef@ult\fontseries\bfseries@rm
+    \else\fontseries\mdseries@rm
+    \fi\fi\fi\fi
+\else\fontseries\mdseries@rm
+\fi\fi\fi\fontfamily\rmdefault\selectfont}
+
+\DeclareRobustCommand\sffamily{%
+\mweights@init
+\not@math@alphabet\sffamily\mathsf
+% change the current series before changing the family
+\ifx\f@family\rmdef@ult
+    \ifx\f@series\mdseries@rm\fontseries\mdseries@sf
+    \else\ifx\f@series\bfseries@rm\fontseries\bfseries@sf
+    \else\ifx\f@series\mddef@ult\fontseries\mdseries@sf
+    \else\ifx\f@series\bfdef@ult\fontseries\bfseries@sf
+    \else\fontseries\mdseries@sf
+    \fi\fi\fi\fi
+\else\ifx\f@family\ttdef@ult
+    \ifx\f@series\mdseries@tt\fontseries\mdseries@sf
+    \else\ifx\f@series\bfseries@tt\fontseries\bfseries@sf
+    \else\ifx\f@series\mddef@ult\fontseries\mdseries@sf
+    \else\ifx\f@series\bfdef@ult\fontseries\bfseries@sf
+    \else\fontseries\mdseries@sf
+    \fi\fi\fi\fi
+\else\ifx\f@family\sfdef@ult
+    \ifx\f@series\mdseries@sf\fontseries\mdseries@sf
+    \else\ifx\f@series\bfseries@sf\fontseries\bfseries@sf
+    \else\ifx\f@series\mddef@ult\fontseries\mdseries@sf
+    \else\ifx\f@series\bfdef@ult\fontseries\bfseries@sf
+    \else\fontseries\mdseries@sf
+    \fi\fi\fi\fi
+\else\fontseries\mdseries@sf
+\fi\fi\fi\fontfamily\sfdefault\selectfont}
+
+\DeclareRobustCommand\ttfamily{%
+\mweights@init
+\not@math@alphabet\ttfamily\mathtt
+% change the current series before changing the family
+\ifx\f@family\rmdef@ult
+    \ifx\f@series\mdseries@rm\fontseries\mdseries@tt
+    \else\ifx\f@series\bfseries@rm\fontseries\bfseries@tt
+    \else\ifx\f@series\mddef@ult\fontseries\mdseries@tt
+    \else\ifx\f@series\bfdef@ult\fontseries\bfseries@tt
+    \else\fontseries\mdseries@tt
+    \fi\fi\fi\fi
+\else\ifx\f@family\sfdef@ult
+    \ifx\f@series\mdseries@sf\fontseries\mdseries@tt
+    \else\ifx\f@series\bfseries@sf\fontseries\bfseries@tt
+    \else\ifx\f@series\mddef@ult\fontseries\mdseries@tt
+    \else\ifx\f@series\bfdef@ult\fontseries\bfseries@tt
+    \else\fontseries\mdseries@tt
+    \fi\fi\fi\fi
+\else\ifx\f@family\ttdef@ult
+    \ifx\f@series\mdseries@tt\fontseries\mdseries@tt
+    \else\ifx\f@series\bfseries@tt\fontseries\bfseries@tt
+    \else\ifx\f@series\mddef@ult\fontseries\mdseries@tt
+    \else\ifx\f@series\bfdef@ult\fontseries\bfseries@tt
+    \else\fontseries\mdseries@tt
+    \fi\fi\fi\fi
+\else\fontseries\mdseries@tt
+\fi\fi\fi\fontfamily\ttdefault\selectfont}
+
+% override default family with new \familydefault
+\AtBeginDocument{\mweights@init
+\ifx\famdef@ult\rmdef@ult\rmfamily
+\else\ifx\famdef@ult\sfdef@ult\sffamily
+\else\ifx\famdef@ult\ttdef@ult\ttfamily
+\fi\fi\fi}
+
+\endinput