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