On 2010-05-25, Francisco J Ruiz-Ruano Campaña wrote: > I have typed > $ sudo aptitude install qt4-dev-tools
for Debian and Ubuntu, I recommend $ apt-get build-dep lyx (as root or with sudo). This installs all packages needed to build the lyx version in the repository. (If there are new dependencies in a new lyx version, these need to be installed "by hand".) Günter