gobject-introspection PG: respect all CFLAGS

[MarcusCalhoun-Lopez]

Fixes https://trac.macports.org/ticket/62410

Description

Type(s)

• bugfix
• enhancement
• security fix

Tested on

macOS 10.13.6 17G14042
Xcode 10.1 10B61

Verification

Have you

• followed our Commit Message Guidelines?
• squashed and minimized your commits?
• checked that there aren't other open pull requests for the same change?
• referenced existing tickets on Trac with full URL?
• checked your Portfile with port lint?
• tried existing tests with sudo port test?
• tried a full install with sudo port -vst install?
• tested basic functionality of all binary files?

[macportsbot]

Notifying maintainers:
@danchr for port libvirt-glib.
@dbevans for port telepathy-glib, telepathy-logger, libgda5, glade, upower, amtk, anjuta, evince, gcr, gdl3, gfbgraph, gjs, gnome-autoar, gnome-characters, gnome-maps, gnome-menus, gnome-music, gnome-online-accounts, gnome-panel, gnome-weather, gnumeric, goffice, goocanvas2, gspell, gtksourceview3, libgnome-keyring, libgnomekbd, libgtop, libsocialweb, libunique, libunique3, liferea, nautilus, polari, rest, tracker, uhttpmock, vte, clutter-gst, clutter-gst3, clutter-gtk, clutter, cogl, gegl-0.3, libmediaart, librsvg, osm-gps-map, poppler, gmime3, gssdp, gupnp-av, gupnp-dlna, gupnp-igd, gupnp, libgrss, libnice, rygel, policykit, gtkspell3.
@ryandesign for port keybinder-3.0, keybinder, pango-devel, pango.
@jcupitt for port vips.
@bgilbert for port vips.
@i0ntempest for port avahi.

[cjones051073]

Hmm, its a little difficult to review this given the significant changes to the PG and the fact the builds fail presumably due to the number of touched ports. Are we happy to merge as is and assume the PG changes work ?

[cjones051073]

Could you please mention in the commit message that you also bump dependent ports.

[MarcusCalhoun-Lopez]

I have updated the commit message.
Some of these ports do not build on any platform.
However, the ones that do build seem to build properly on a macOS 10.13 VM.