% Public domain.
% Written by Thomas Esser, Heiko Oberdiek, Sebastian Rahtz, and others.
\ProvidesFile{graphics.cfg}%
  [2010/04/23 v1.9 graphics configuration of TeX Live]%

% Select an appropriate default driver
\begingroup
  \chardef\x=0\relax
  % check pdfTeX
  \@ifundefined{pdfoutput}{}{%
    \ifnum\pdfoutput<1 %
    \else
      \chardef\x=1\relax
    \fi
  }%
  % check VTeX
  \@ifundefined{OpMode}{}{%
    \chardef\x=2\relax
  }%
  % check XeTeX
  \@ifundefined{XeTeXversion}{}{%
    \chardef\x=3\relax
  }%
\expandafter\endgroup
\ifcase\x
  % default case
  \def\Gin@driver{dvips.def}%
  \ExecuteOptions{dvips}%
\or
  % pdfTeX is running in pdf mode
  \def\Gin@driver{pdftex.def}%
  \ExecuteOptions{pdftex}%
  % Load package epstopdf if
  % a) LaTeX is running (plain TeX users are on their own),
  % b) and shell escape (\write18) is enabled (possibly restricted),
  % c) and \DoNotLoadEpstopdf either does not exist or is not \relax,
  % d) and neither pst-pdf nor pdftricks is loaded (by \begin{document}).
  % 
  % In other words, by default .eps files will be automatically
  % converted to .pdf files when outputting pdf.  This can be wrong!
  % If the .pdf is the source, rather than the .eps, you should put
  %  \newcommand{\DoNotLoadEpstopdf}{}
  % before even the \documentclass line of your document.
  % 
  % More information about the epstopdf run will be in the .log file;
  % see http://ctan.org/pkg/epstopdf-pkg for more info about the
  % epstopdf package itself.  In turn, it calls the epstopdf script
  % (http://ctan.org/pkg/epstopdf).
  % 
  % For the first discussion and background on this, see the thread on latex-l:
  % http://thread.gmane.org/gmane.comp.tex.latex.latex3/1465
  %
  \begingroup\expandafter\expandafter\expandafter\endgroup
  \expandafter\ifx\csname DoNotLoadEpstopdf\endcsname\relax
    \begingroup\expandafter\expandafter\expandafter\endgroup
    \expandafter\ifx\csname AtEndOfPackage\endcsname\relax
    \else
      \AtEndOfPackage{%
        \AtBeginDocument{%
          \@ifpackageloaded{pst-pdf}{}{%
            \@ifpackageloaded{pdftricks}{}{%
              \RequirePackage{pdftexcmds}[2007/11/11]%
              \expandafter\ifx\csname pdf@shellescape\endcsname\relax
              \else
                \ifnum\pdf@shellescape>0 %
                  \RequirePackage{epstopdf-base}[2009/07/12]%
                \fi
              \fi
            }% pdftricks not loaded
          }% pst-pdf not loaded
        }% AtBeginDocument block
      }% AtEndofPackage block
    \fi % AtEndofPackage not defined
  \fi % DoNotLoadEpstopdf not defined
\or
  % VTeX is running
  \def\Gin@driver{vtex.def}%
  \ExecuteOptions{vtex}%
\else
  % XeTeX is running
  \def\Gin@driver{xetex.def}%
  \ExecuteOptions{xetex}%
\fi

% Fix for dvips and xdvi versions that can uncompress
% graphic files without an explicite call of gunzip.
% (The fix is not applied for miniltx.tex, because
% \AtEndOfPackage is not available in plainTeX.)
\begingroup\expandafter\expandafter\expandafter\endgroup
\expandafter\ifx\csname AtEndOfPackage\endcsname\relax
\else
  \AtEndOfPackage{%
    \begingroup
    \@ifundefined{DeclareGraphicsRule}{%
      \endgroup
    }{%
      \def\x{dvips.def}%
      \expandafter\endgroup
      \ifx\x\Gin@driver
        \DeclareGraphicsRule{.pz}{eps}{.bb}{}%
        \DeclareGraphicsRule{.eps.Z}{eps}{.eps.bb}{}%
        \DeclareGraphicsRule{.ps.Z}{eps}{.ps.bb}{}%
        \DeclareGraphicsRule{.ps.gz}{eps}{.ps.bb}{}%
        \DeclareGraphicsRule{.eps.gz}{eps}{.eps.bb}{}%
      \fi
    }%
  }%
\fi
\endinput
