The complain about this package was that it uses firefox as default browser. Parabola fixes this by having this line on their PKGBUILD:
sed -r '/DEFAULT_EXTERNAL_BROWSER_COMMAND_LINE/s/firefox[^ ]*/xdg-open/' -i src/Config.cxx
This change was converted into a libre.patch
patch file so that template
file did not need any change. Accompanying libre.patch.args
has the patch parameters for the file.