[PATCHES] libxfce4util: Fix up GIR slightly and add vapi generation
Attached are 5 patches that should get libxfce4util up to speed so
that it's usable with GIR, and also adds vapigen generation for vala
0001 is for gcc 7.x, it silences a new warning.
0002 adds vapigen
0003 makes sure our gir/vapi is namespaced "Xfce" and not "xfce"
0004 Changes libxfce4util-1.0.pc.in so that our PKG_CONFIG path is
actually (for example) /usr/include/xfce4/libxfce4util and not
0005 adds a metadata to gir/vapi generation that fixes their
assumption for the header file name