lilypond-usage: Using Xpdf for point and click
Using Xpdf
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For Xpdf on UNIX, the following should be present in ‘xpdfrc’. On UNIX,
this file is found either in ‘/etc/xpdfrc’ or as ‘$HOME/.xpdfrc’.
urlCommand "lilypond-invoke-editor %s"
If you are using Ubuntu, it is likely that the version of Xpdf
installed with your system crashes on every PDF file: this state has
been persisting for several years and is due to library mismatches.
Your best bet is to install a current ‘xpdf’ package and the
corresponding ‘libpoppler’ package from Debian instead. Once you have
tested that this works, you might want to use
sudo apt-mark hold xpdf
in order to keep Ubuntu from overwriting it with the next ‘update’ of
its crashing package.