X-Git-Url: http://gitweb.michael.orlitzky.com/?a=blobdiff_plain;f=mjo-listing.tex;h=bcfe25f4af5673bfbcd9bf6ab58094fae5343f6a;hb=a331ae0b381e9b3a0fa68d3ef42e7fac42dbb471;hp=f733be6b4c5d8179e317859b6d3e5735d9699ae2;hpb=bcef6c6339823ec1d823af1246cfb26eec0f9b52;p=mjotex.git

diff --git a/mjo-listing.tex b/mjo-listing.tex
index f733be6..bcfe25f 100644
--- a/mjo-listing.tex
+++ b/mjo-listing.tex
@@ -10,8 +10,17 @@
 %   x
 %   \end{tcblisting}
 %
-\usepackage{listings}
-\usepackage{tcolorbox}
+\ifx\havemjolisting\undefined
+\def\havemjolisting{1}
+
+
+\ifx\lstset\undefined
+  \usepackage{listings}
+\fi
+
+\ifx\tcbuselibrary\undefined
+  \usepackage{tcolorbox}
+\fi
 
 % Tell tcolorbox to use ``listings'' within the boxes.
 \tcbuselibrary{listings}
@@ -49,6 +58,11 @@
 \newcommand*{\sagelisting}[1]{\tcbinputlisting{listing only,%
                colback=codebg,%
                coltext=codefg,%
+               enlarge bottom finally by=\baselineskip,%
+               enlarge top initially by=\baselineskip,%
                left=2em,%
                listing options={language=sage,style=sage},%
                listing file=sage_listings/#1.listing}}
+
+
+\fi