Now the Debian package build fails with:
cp: cannot stat 'debian/tmp/usr/lib/girepository-1.0': No such
file or directory
This looks like a regression introduced in commit
d77d68d4c5e44dc6ee8ad. Previously, typelib files were installed in
$(INTROSPECTION_TYPELIBDIR) (/usr/lib/girepository-1.0/ for me), now
they are installed in $(datadir)/gir-1.0 (/usr/share/gir-1.0),
together with gir files.
girdir = $(datadir)/gir-1.0/
typelibdir = $(libdir)/girepository-1.0/