(pdflatex '\newcommand{\genc}{true}\newcommand{\genpy}{true}\newcommand{\targetlang}{c}\input{opencv.tex}' &&
 bibtex opencv &&
 makeindex opencv &&
 pdflatex '\newcommand{\genc}{true}\newcommand{\genpy}{true}\newcommand{\targetlang}{c}\input{opencv.tex}' > 1
 ) || exit 1
#gv -page=480 opencv.pdf