LXQt binaries look for their themes and translations based on the name of the binary, which is changed by the wrapper script. This patches liblxqt to recover the original name from the wrapped binary name.
libqtxdg fails to build on darwin.
LXQt is a DE for linux so assume darwin is not supported.
The platform for some packages that may be useful outside of
LXQt (like pcmanfm-qt, lximage-qt and others) and do not depend on
libqtxdg are not being changed.
LXQt uses the values in this macro to set installation
directories and in the case of lxqt-session to substitute in paths.
However, by doing this all the paths are from within lxqt-build-tools
prefix. By utilizing a setup hook we can set the directories with the
correct prefix as cmake flags.
