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diff --git a/Master/texmf-dist/tex/latex/pgf/compatibility/pgfheaps.sty b/Master/texmf-dist/tex/latex/pgf/compatibility/pgfheaps.sty
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+% Copyright 2006 by Till Tantau
+%
+% This file may be distributed and/or modified
+%
+% 1. under the LaTeX Project Public License and/or
+% 2. under the GNU Public License.
+%
+% See the file doc/generic/pgf/licenses/LICENSE for more details.
+
+\RequirePackage{pgfrcs}
+
+\ProvidesPackageRCS[v\pgfversion] $Header: /cvsroot/pgf/pgf/latex/pgf/compatibility/pgfheaps.sty,v 1.3 2006/10/11 15:22:27 tantau Exp $
+
+\RequirePackage{pgf}
+
+\PackageWarning{pgfheaps}{This package is obsolete.}
+
+\ProcessOptions
+
+%
+% Package for drawing heap diagrams.
+%
+
+\newdimen\pgf@heapx
+\newdimen\pgf@heapy
+
+
+
+
+% Construct the path of a heap.
+% 
+% #1 = Position of heap label.
+% #2 = Position of left base
+% #3 = Position of right base
+% 
+% Example:
+%
+% \pgfheappath{\pgfxy(1,0)}{\pgfxy(-1,0)}{\pgfxy(1,0)}
+% \pgffill
+
+\def\pgfheappath#1#2#3{%
+  \pgfdiff{#2}{#3}%
+  \pgf@heapx=-.25\pgf@x%
+  \pgf@heapy=-.25\pgf@y%
+  \pgfmoveto{#2}%
+  \pgfbezier%
+    {\pgfpartway{0.5}{#2}{\pgfrelative{#1}{\pgfpoint{\pgf@heapx}{\pgf@heapy}}}}%
+    {\pgfrelative{#1}{\pgfpoint{\pgf@heapx}{\pgf@heapy}}}%
+    {#1}%
+  \pgf@heapx=-\pgf@heapx%
+  \pgf@heapy=-\pgf@heapy%  
+  \pgfbezier%
+    {\pgfrelative{#1}{\pgfpoint{\pgf@heapx}{\pgf@heapy}}}%
+    {\pgfpartway{0.5}{#3}{\pgfrelative{#1}{\pgfpoint{\pgf@heapx}{\pgf@heapy}}}}%
+    {#3}%
+  \ignorespaces}
+
+
+% Draw a heap label. 
+% 
+% #1 = Position of heap label.
+% #2 = Label text.
+% 
+% Example:
+%
+% \pgfheaplabel{\pgfxy(1,0)}{Class P}
+
+\def\pgfheaplabel#1#2{%
+  \setbox\pgf@hbox=\hbox{\pgfinterruptpicture#2\endpgfinterruptpicture}%
+  \pgf@heapy=\ht\pgf@hbox%
+  \pgfputat{\pgfrelative{#1}{\pgfpoint{0pt}{-2\pgf@heapy}}}{\pgfbox[center,base]{#2}}%
+  \ignorespaces}
+
+
+% Draw a labeled heap. 
+% 
+% #1 = Position of heap label.
+% #2 = Position of left base
+% #3 = Position of right base
+% #4 = Label text.
+% 
+% Example:
+%
+% \pgfheaplabeled{\pgfxy(1,0)}{\pgfxy(-1,0)}{\pgfxy(1,0)}{Class P}
+
+\def\pgfheaplabeled#1#2#3#4{%
+  \pgfheaplabel{#1}{#4}%
+  \pgfheappath{#1}{#2}{#3}%
+  \pgfstroke%
+  \ignorespaces}
+
+
+
+% Draw a labeled heap. 
+% 
+% #1 = Height of the label
+% #2 = Left and right extension of the base.
+% #3 = Label text.
+% 
+% Example:
+%
+% \pgfheaplabeledcentered{1cm}{1cm}{Class P}
+
+\def\pgfheaplabeledcentered#1#2#3{%
+  \pgfheaplabeled{\pgfpoint{0pt}{#1}}{\pgfpoint{-#2}{0pt}}{\pgfpoint{#2}{0pt}}{#3}\ignorespaces}
+
+\endinput